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IT	InfoQ	Curiosity and Self-Awareness are Must-Haves for Handling Conflict	https://www.infoq.com/news/2023/05/curiosity-self-aware-conflict/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=global	Curiosity and Self Awareness are Must Haves for Handling ConflictWhen you re in a team collaborating with others it s crucial to embrace diverse opinions and dissent you need to have good conflicts Conflicts have bad reputations but with curiosity you can harvest more positive outcomes and build trust and psychological safety Self awareness of your emotions and reactions can help prevent saying or doing something that you might regret later By Ben Linders	2023-05-26 13:02:00
IT	ITmedia 総合記事一覧	[ITmedia News] キングジム子会社、新家電ブランド「Life on Products」始動　冷凍庫や掃除用品など	https://www.itmedia.co.jp/news/articles/2305/25/news221.html	itmedia	2023-05-26 22:30:00
TECH	Techable（テッカブル）	脳波で睡眠の質を測る。AI睡眠計測デバイスを活用した京都のホテルプランがユニーク	https://techable.jp/archives/209082	生活様式	2023-05-26 13:00:49
AWS	AWS Architecture Blog	Author Spotlight: Vittorio Denti, Machine Learning Engineer at Amazon	https://aws.amazon.com/blogs/architecture/author-spotlight-vittorio-denti-machine-learning-engineer-at-amazon/	Author Spotlight Vittorio Denti Machine Learning Engineer at AmazonThe Author Spotlight series pulls back the curtain on some of AWS and Amazon s most prolific authors Read on to find out more about our very own Vittorio Denti s journey in his own words I m Vittorio and I work as a Machine Learning Engineer at Amazon My journey in the engineering world began when I …	2023-05-26 13:01:25
python	Pythonタグが付けられた新着投稿 - Qiita	脳腫瘍判別システム	https://qiita.com/Taku888555/items/7f71980399256ba1303e	takuto	2023-05-26 22:37:45
海外TECH	DEV Community	50 C# (Advanced) Optimization Performance Tips🔥	https://dev.to/bytehide/50-c-advanced-optimization-performance-tips-18l2	C Advanced Optimization Performance TipsAs an experienced C developer you re always looking for ways to improve your application s performance Good news You ve come to the right place In this article we ll explore fantastic C performance tips that will help you optimize your code and make sure your app runs as smoothly as possible From memory management to parallel computing we ll cover everything you need to know about C optimization So let s dive right in and unlock the full potential of your C applications Memory Management and Garbage CollectionIn this section we ll introduce effective strategies for handling memory and reducing garbage collection overhead in your C applications Memory management and garbage collection are essential aspects of performance tuning in C so these best practices will help you optimize your code for maximum efficiency Leverage the IDisposable interfaceUtilizing the IDisposable interface is a crucial C performance tip It helps you properly manage unmanaged resources and ensures that your application s memory usage is efficient Bad way public class ResourceHolder private Stream stream public ResourceHolder string filePath stream File OpenRead filePath Missing IDisposable implementation In the bad way above the ResourceHolder class doesn t implement the IDisposable interface which means the unmanaged resources might not be released causing potential memory leaks Good way public class ResourceHolder IDisposable private Stream stream public ResourceHolder string filePath stream File OpenRead filePath public void Dispose stream Dispose Properly disposing the unmanaged resource By implementing the IDisposable interface you ensure that unmanaged resources will be released when no longer needed preventing memory leaks and reducing pressure on the garbage collector This is a fundamental code optimization technique in C that developers should utilize Avoid premature optimizationsPremature optimizations can be counterproductive making your C code harder to read maintain and extend It s essential to first focus on writing clean efficient code and only optimize when necessary after thoroughly profiling your application Bad way private void ProcessData Stopwatch stopwatch new Stopwatch stopwatch Start Complex processing logic with unnecessary micro optimizations stopwatch Stop Console WriteLine Processing time stopwatch ElapsedMilliseconds ms The bad way above focuses too much on micro optimizations which can lead to complex cluttered code that sacrifices maintainability for a negligible performance improvement Good way private void ProcessData Straightforward processing logic without premature optimization Optimize only if necessary and only after profiling and identifying bottlenecks Premature optimizations can make your code harder to maintain and may not have a significant impact on overall performance Instead focus on writing clean and straightforward code then optimize only when necessary after thorough profiling This approach will lead to more maintainable and higher performing C applications Asynchronous Programming with async awaitAsynchronous programming is a powerful technique for improving C performance in I O bound operations allowing you to enhance your app s responsiveness and efficiency Here we ll explore some best practices for async await in C Limit the number of concurrent operationsManaging concurrency is crucial for C performance optimization By limiting the number of concurrent operations in your application you help to reduce the system s overall load Bad way public async Task ProcessManyItems List lt string gt items var tasks items Select async item gt await ProcessItem item await Task WhenAll tasks In the bad way tasks are spawned concurrently for each item without a proper limit potentially causing significant strain on the system Good way public async Task ProcessManyItems List lt string gt items int maxConcurrency using var semaphore new SemaphoreSlim maxConcurrency var tasks items Select async item gt await semaphore WaitAsync Limit concurrency by waiting for the semaphore try await ProcessItem item finally semaphore Release Release the semaphore to allow other operations await Task WhenAll tasks Without limiting concurrency many tasks will run simultaneously which can lead to heavy load and degraded overall performance Instead use a SemaphoreSlim to control the number of concurrent operations This is a great example of how to improve application performance in C without sacrificing readability or maintainability UseConfigureAwait false when possibleConfigureAwait false is a valuable C performance trick that can help prevent deadlocks in your async code and improve efficiency by not forcing continuations to run on the original synchronization context Bad way public async Task lt string gt LoadDataAsync var data await ReadDataAsync return ProcessData data The bad way above does not use ConfigureAwait false which carries a risk of potential deadlocks in certain cases Good way public async Task lt string gt LoadDataAsync var data await ReadDataAsync ConfigureAwait false Use ConfigureAwait false to avoid potential deadlocks return ProcessData data ConfigureAwait false helps to avoid potential deadlocks in your async code and improves efficiency by not forcing continuations to run on the original context Use it whenever it s safe typically in library code and non UI applications This is a practical example of C performance tuning that can have a significant positive impact on your application s overall responsiveness and stability Parallel Computing and Task Parallel Library TPL Parallel computing can help harness the power of multicore processors and speed up CPU bound operations ultimately improving the performance of your C applications Let s explore some tips to get the most out of parallel computing in C Utilize parallel loops with Parallel For and Parallel ForEach Bad way private void ProcessData List lt int gt data for int i i lt data Count i PerformExpensiveOperation data i In the bad way above a standard for loop is used to process the data collection resulting in sequential execution of the operations This does not take advantage of the full potential of modern multicore CPUs Good way private void ProcessData List lt int gt data Parallel ForEach data item gt PerformExpensiveOperation item Parallel loops can considerably accelerate processing of large collections by distributing the workload among multiple CPU cores Switch from regular for and foreach loops to their parallel counterparts whenever it s feasible and safe This is a solid example of how to radically speed up your C code using parallel computing techniques Use Partitioner class for efficient workload distributionBad way private void ProcessData IEnumerable lt int gt data Parallel ForEach data item gt PerformExpensiveOperation item In the bad way above no special consideration is taken to optimize the partitioning of the workload among the parallel tasks This can lead to potential overhead and imbalanced load distribution Good way private void ProcessData IEnumerable lt int gt data var partitioner Partitioner Create data Parallel ForEach partitioner item gt PerformExpensiveOperation item By employing the Partitioner class you can efficiently distribute workloads into chunks reducing potential overhead and improving load balancing among parallel tasks The Partitioner creates optimal work chunks to minimize the overhead of task synchronization resulting in better performance and workload distribution for your C applications Importance of Caching DataCaching can significantly improve application performance by reducing the time taken to fetch and process data In this section we ll discuss some effective caching techniques and their proper implementation in C code optimization Implement data caching with in memory cacheUtilizing in memory caching can drastically reduce time consuming database fetches and speed up your application Bad way public Product GetProductById int id Fetching product data from the database every time var product dbContext Products FirstOrDefault p gt p Id id return product In the bad way above product data is fetched from the database every time the method is called This can cause significant performance degradation especially if the database is located remotely or is under heavy load Good way private static MemoryCache cache new MemoryCache new MemoryCacheOptions public Product GetProductById int id Fetching product data from the cache if available if cache TryGetValue id out Product product product dbContext Products FirstOrDefault p gt p Id id cache Set id product TimeSpan FromMinutes return product The good way demonstrates the use of in memory caching to store product data and reduce time consuming database fetches Utilize MemoryCache to cache frequently requested data and improve performance This is a NET performance optimization technique that helps to speed up data retrieval and reduce the load on your database server Implement caching with distributed cache systems e g Redis Distributed cache systems like Redis can further enhance your application s performance by caching data in a manner that scales across multiple servers and provides high availability Bad way public List lt Product gt GetPopularProducts Fetching popular product data from the database every time var popularProducts dbContext Products Where p gt p IsPopular ToList return popularProducts The bad way above retrieves popular product data from the database every time the method is called resulting in unnecessary database fetch operations and diminished performance Good way private static IDistributedCache distributedCache public List lt Product gt GetPopularProducts Fetching popular product data from the distributed cache if available string cacheKey popularProducts string cachedProducts distributedCache GetString cacheKey if cachedProducts null var popularProducts dbContext Products Where p gt p IsPopular ToList distributedCache SetString cacheKey JsonConvert SerializeObject popularProducts new DistributedCacheEntryOptions AbsoluteExpirationRelativeToNow TimeSpan FromMinutes return popularProducts else return JsonConvert DeserializeObject lt List lt Product gt gt cachedProducts The good way showcases implementing distributed caching with Redis to store popular product data again reducing database fetches Employ distributed cache systems like Redis for caching across multiple servers and improving application scalability By using Redis you can optimize your C code and ensure fast data access even when your application runs on multiple servers Concurrency and Thread SafetyManaging concurrency is a fundamental aspect of developing high quality C applications Ensuring thread safety can prevent undesirable bugs and performance issues so let s consider some best practices Use lock free data structures when possibleOpting for lock free data structures such as ConcurrentBag ConcurrentQueue or ConcurrentDictionary can help you maintain thread safety in multi threaded scenarios without sacrificing performance Bad way private readonly object syncRoot new object private readonly List lt int gt list new List lt int gt public void Add int item lock syncRoot list Add item In the bad way above the lock keyword is used to synchronize access to the list which can lead to contention and degraded performance Good way private readonly ConcurrentBag lt int gt bag new ConcurrentBag lt int gt public void Add int item bag Add item By using lock free data structures such as ConcurrentBag ConcurrentQueue or ConcurrentDictionary you can minimize contention improve performance and ensure thread safety in multi threaded scenarios Use efficient synchronization constructsUtilizing efficient synchronization constructs such as SemaphoreSlim ReaderWriterLockSlim or Monitor can help you protect shared resources and maintain thread safety while minimizing contention and performance impact Bad way private readonly object syncRoot new object private readonly List lt int gt list new List lt int gt public void Add int item lock syncRoot list Add item In the bad way above the lock keyword is used again for synchronization This can lead to contention and negatively impact performance Good way private readonly SemaphoreSlim semaphoreSlim new SemaphoreSlim private readonly List lt int gt list new List lt int gt public async Task AddAsync int item await semaphoreSlim WaitAsync try list Add item finally semaphoreSlim Release Efficient synchronization constructs like SemaphoreSlim ReaderWriterLockSlim or Monitor allow you to protect shared resources and ensure thread safety while minimizing contention and performance overhead Choose the most suitable synchronization construct based on your application s requirements and use them judiciously to avoid potential performance bottlenecks Employ the Interlocked class for atomic operationsUsing the Interlocked class you can perform simple atomic operations without relying on locks reducing contention and improving performance Bad way private int counter private readonly object syncRoot new object public void IncrementCounter lock syncRoot counter In the bad way above the lock keyword is utilized to ensure thread safety during the counter increment However this can result in contention and performance degradation Good way private int counter public void IncrementCounter Interlocked Increment ref counter The Interlocked class lets you perform simple atomic operations without using locks resulting in increased performance and reduced contention Use it whenever possible for operations like incrementing decrementing or addition Understanding and Optimizing LINQ PerformanceLINQ is a powerful tool but it can impact performance if used improperly In this section we ll explore tips and tricks to optimize LINQ usage in your C applications Know the difference between deferred and immediate executionUnderstanding deferred and immediate execution permits you to have better control over when your LINQ queries execute while avoiding potential performance issues Bad way public IEnumerable lt int gt GetEvenNumbers IEnumerable lt int gt numbers var evens numbers Where n gt n Do some other work return evens In the bad way above the LINQ query s execution is deferred which can lead to redundant query executions if the returned IEnumerable is enumerated multiple times Good way public IReadOnlyList lt int gt GetEvenNumbers IEnumerable lt int gt numbers var evens numbers Where n gt n ToList Do some other work return evens Understanding deferred and immediate execution helps you control when your LINQ queries execute and avoid potential performance problems Force immediate execution using ToList or ToArray when needed Opt for query syntax over method syntax when possibleChoosing query syntax over method syntax can result in more readable and maintainable code especially for complex queries Bad way var query items Select item gt new PropertyName item SomeProperty In the bad way above method syntax is used to express the query which can become unreadable if the query is more complex Good way var query from item in items select new PropertyName item SomeProperty Using query syntax over method syntax can result in more readable and maintainable code especially for complex queries Make use of query syntax whenever feasible Be aware of potential pitfalls when using LINQ in a multithreaded environmentUsing LINQ in parallel scenarios requires caution to avoid potential issues related to thread safety and performance bottlenecks Bad way Parallel ForEach items item gt var matchingItems items Where i gt i Name item Name Process matchingItems In the bad way above multiple threads enumerate the same IEnumerable resulting from the LINQ query which can lead to unpredictable behavior Good way Parallel ForEach items item gt Create a separate LINQ query for each parallel operation var matchingItems items AsParallel Where i gt i Name item Name Process matchingItems Using LINQ in parallel scenarios requires special attention to avoid potential issues such as thread safety and performance bottlenecks Employ the AsParallel extension method to ensure safety and parallelism Micro optimizations and JIT CompilationMicro optimizations in your C code may appear minor but can lead to significant performance improvements Now we will discuss some techniques to fine tune your code Perform loop unrolling for better performanceLoop unrolling can accelerate your code execution by reducing the overhead of loop control structures However apply it cautiously as excessive loop unrolling can negatively affect code readability and maintenance Bad way for int i i lt array Length i array i i In the bad way above a simple loop iterates through each element of an array causing high loop control structure overhead Good way int len array Length for int i i lt len i array i i array i i array i i array i i Loop unrolling can lead to faster execution of your code by reducing the overhead of loop control structures Apply it cautiously though as excessive loop unrolling can impact readability and maintenance Utilize the aggressive inlining attribute for critical methodsBy marking critical methods with the AggressiveInlining attribute you can instruct the JIT compiler to inline them potentially improving performance by reducing the overhead of method calls Bad way private int MultiplyByTwo int value return value In the bad way above the method is not marked with the AggressiveInlining attribute so it may not be inlined during JIT compilation resulting in potentially slower execution Good way MethodImpl MethodImplOptions AggressiveInlining private int MultiplyByTwo int value return value By marking critical methods with the AggressiveInlining attribute you can instruct the JIT compiler to inline them potentially improving performance by reducing the overhead of method calls Stack vs Heap AllocationUnderstanding the difference between stack and heap allocation is essential for C performance optimization Let s explore some tips for efficient allocation that can help you radically speed up your code Limit the use of heap allocated objects when possibleBad way private string GetUserName int index return new string User index ToCharArray Using the new keyword to create a string object introduces heap allocation and contributes towards garbage collection overhead negatively impacting the overall performance of your application Good way private string GetUserName int index return User index By simply returning the interpolated string we avoid heap allocation and reduce the overhead provided by garbage collection which accelerates the performance of your C code Know when to use stackalloc keyword for memory allocationBad way private double CalculateSum double values double sum for int i i lt values Length i sum values i return sum The bad way code example here uses a double array parameter which might be allocated on the heap increasing the overhead from garbage collection and impacting NET performance Good way private unsafe double CalculateSum int count double sum double values stackalloc double count Allocate memory on the stack for int i i lt count i sum values i return sum Using stackalloc we efficiently allocate memory on the stack reducing our dependency on the heap and garbage collector This leads to better NET performance and potentially faster code execution Efficient Data Structures and AlgorithmsChoosing the right data structures and algorithms directly impacts your C performance Let s examine some techniques to make better choices with high performance coding with NET Core and C Choose the right data structure for your needsBad way List lt int gt userList new List lt int gt Using a List to store user identifiers introduces performance bottlenecks particularly when frequent look ups are required Good way HashSet lt int gt userList new HashSet lt int gt Selecting a HashSet instead of a List offers faster look up times and greater performance Recognizing the suitable data structure is vital for efficient C coding and solving NET performance issues Employ custom sorting algorithms for specific use casesBad way double values Array Sort values Relying on default sorting algorithms may not always be the best choice for specific performance centric use cases Good way double values CustomSortAlgorithm Sort values Employing a custom sorting algorithm can significantly improve your C performance as it allows you to optimize for your specific needs This way you can develop high performance code that is better suited to your scenarios Reflection and Code GenerationReflection and code generation are powerful tools in C but improper usage can slow down your applications Let s delve into some best practices to optimize their use and evade NET performance issues Avoid excessive use of Reflection APIsBad way Type userType typeof User object user Activator CreateInstance userType The bad way code example leverages Reflection APIs for object instantiation which incurs a notable performance cost Good way By directly creating a new object using the constructor you can reduce the burden of runtime overhead associated with reflection APIs thus enhancing the C performance Use dynamically generated lambda expressions instead of reflectionBad way private static void SetPropertyViaReflection object obj PropertyInfo property object value property SetValue obj value Performance C suffers when using reflection to set property values due to the additional overhead required to process the operation Good way private static void SetPropertyViaExpression object obj PropertyInfo property object value var setter property SetMethod CreateDelegate typeof Action lt gt MakeGenericType property DeclaringType property PropertyType dynamic setter obj value Instead of using reflection dynamically generating lambda expressions can substantially improve performance By employing the Just In Time JIT compiler optimization you can achieve high performance coding with NET Core and C SIMD Single Instruction Multiple Data using System NumericsSIMD can significantly improve performance by processing multiple data elements in parallel Let s explore how to utilize SIMD in your C applications for high performance coding with NET Core and C Harness the power of SIMD instructions with VectorBad way private void Normalize float data for int i i lt data Length i data i data i f The bad way code example processes data elements one by one which can be slow and limit the C performance potential Good way private void Normalize float data Vector lt float gt factor new Vector lt float gt f for int i i lt data Length i Vector lt float gt Count Vector lt float gt vector new Vector lt float gt data i vector factor CopyTo data i Process multiple elements in parallel By employing Vector lt T gt you can harness SIMD instructions to process multiple data elements simultaneously This can lead to substantial performance improvements in your C code Ensure compatibility with hardware accelerated SIMDBad way private void Normalize float data Vector lt float gt factor new Vector lt float gt f for int i i lt data Length i Vector lt float gt Count Vector lt float gt vector new Vector lt float gt data i vector factor CopyTo data i The bad way code example may not work with some configurations that lack SIMD support limiting the code s compatibility across different hardware Good way private void Normalize float data if Vector IsHardwareAccelerated Check for SIMD support Vector lt float gt factor new Vector lt float gt f for int i i lt data Length i Vector lt float gt Count Vector lt float gt vector new Vector lt float gt data i vector factor CopyTo data i else for int i i lt data Length i data i data i f By checking for hardware acceleration support with Vector IsHardwareAccelerated before using SIMD instructions you ensure your code stays portable and works correctly on different platforms even on those without SIMD support Providing a fallback to regular code when SIMD isn t available ensures better compatibility across various hardware configurations ValueTask and ValueTask for reusing asynchronous codeLeveraging ValueTask lt TResult gt can help reduce heap allocations and improve performance in asynchronous scenarios Let s see how to use it effectively for optimizing NET code Use ValueTask to reduce heap allocationsBad way public async Task lt string gt ReadDataAsync var data await ReadFromStreamAsync stream return ProcessData data The bad way code example depends on heap allocated Task lt TResult gt objects which contribute to garbage collection overhead and slow down C performance Good way public async ValueTask lt string gt ReadDataAsync var data await ReadFromStreamAsync stream return ProcessData data By switching from Task lt TResult gt to ValueTask lt TResult gt you can reduce heap allocations and ultimately improve your C performance It s particularly helpful for high frequency async operations Optimize performance with appropriate async operationsBad way public async Task lt int gt CalculateAsync int x int y return await Task FromResult x y The bad way code example uses unnecessary heap allocations through Task FromResult that can hamper performance Good way public ValueTask lt int gt CalculateAsync int x int y return new ValueTask lt int gt x y Reduce heap allocations Using the appropriate async operation can significantly optimize your C performance In cases where a method is likely to complete synchronously or its asynchronous paths can be merged using ValueTask lt TResult gt instead of Task lt TResult gt can help reduce heap allocations and improve performance Be mindful of when to choose ValueTask over Task based on specific scenarios and the nature of the asynchronous operations involved Detecting and Reducing Boxing and UnboxingReducing boxing and unboxing overhead can significantly contribute to your C performance Let s explore some techniques to avoid these costly operations for optimizing NET code Understand the cost of boxing and unboxingBad way int number object boxedNumber number Boxingint unboxedNumber int boxedNumber UnboxingBoxing and unboxing introduce additional overhead that can have a negative impact on C performance Good way int number Avoid boxing and unboxingBy being aware of the performance implications of boxing and unboxing you can make better decisions in your code to avoid unnecessary overhead Optimize your code by minimizing these operations when possible Utilize generics and custom interfaces to avoid boxingBad way public interface INumber object Value get set public class Number INumber public object Value get set The bad way code example incurs boxing overhead due to the use of object types which can impact C performance Good way public interface INumber lt T gt T Value get set public class Number lt T gt INumber lt T gt Utilize generics to avoid boxing public T Value get set Using generics and custom interfaces can help prevent boxing and improve performance By employing type parameters you can write more efficient code that avoids boxing overhead for value types and maintains flexibility for reference types This results in better C performance and helps address NET performance issues Network Programming OptimizationOptimizing network communication is crucial for responsive and high performing C applications Let s learn how to enhance your network programming with expert tips Choose efficient serialization methodsC developers often need to serialize and deserialize data to communicate with external systems or file storage Choosing an efficient serialization method can significantly impact your C application s performance impacting the productivity of the C optimizer as well Bad way Using XmlSerializer for data serializationprivate string SerializeObjectToXml lt T gt T obj var serializer new XmlSerializer typeof T using var writer new StringWriter serializer Serialize writer obj return writer ToString XML serialization is a slow and outdated method for data serialization due to its verbose nature The XmlSerializer generates a large amount of temporary objects and may affect the NET code optimization techniques in use resulting in slow performance increased memory usage and the risk of blocking the GC Good way Using Newtonsoft Json for data serializationprivate string SerializeObjectToJson lt T gt T obj return JsonConvert SerializeObject obj The good way example shows the use of Newtonsoft Json a faster more efficient library for serialization compared to XmlSerializer This library ensures better performance and provides additional features that help optimize code in Visual Studio allowing C compiler optimizations to work more effectively Use HttpClientFactory to manage HttpClient instancesNot properly reusing HttpClient instances may lead to an exhaustion of available sockets as well as other performance issues HttpClientFactory enables proper management and reuse of HttpClient instances reducing the chances of such problems Bad way Creating a new HttpClient instance for every requestvar httpClient new HttpClient var response await httpClient GetAsync Good way Injecting HttpClient into the class using dependency injection and using the HttpClient provided by HttpClientFactoryprivate readonly HttpClient httpClient public MyClass HttpClient httpClient httpClient httpClient public async Task GetDataAsync var response await httpClient GetAsync The good way example demonstrates using HttpClientFactory to provide HttpClient instances to your classes via dependency injection This approach manages the lifetimes of your HttpClient instances more efficiently preventing socket exhaustion and performance issues that may arise due to improper handling Optimizing Exception HandlingException handling is a crucial aspect of C programming but improper use can result in performance bottlenecks Let s see how to handle exceptions efficiently and responsibly Avoid using exceptions for flow controlTreating exceptions as a part of the normal application flow can significantly impact C performance by generating unnecessary work for the C optimizer and creating potential performance hiccups in the runtime Bad way try int Parse input catch FormatException Handle the invalid input In the bad way example trying to parse an invalid input string would throw an exception Throwing an exception here is not ideal for performance and forces us to handle the FormatException as control flow Good way if int TryParse input out int result Use the parsed value else Handle the invalid input The good way example leverages the TryParse method to avoid relying in exception for control flow This approach ensures better C performance and cleaner code Use exception filters to minimize catch blocksException filters help in writing efficient exception handling code that keeps catch blocks more concise and easier to maintain Bad way try Perform an operation catch Exception ex if ex is InvalidOperationException ex is ArgumentNullException Handle the specific exceptions else throw In the bad way example multiple exceptions are caught in a single catch block with nested if statements used to differentiate between them This may lead to a more complex and harder to maintain code Good way try Perform an operation catch Exception ex when ex is InvalidOperationException ex is ArgumentNullException Handle the specific exceptions The good way example demonstrates the use of exception filters These allow you to catch exceptions only when a certain condition is met which simplifies your catch blocks and eliminates the need for multiple catch blocks or rethrowing unhandled exceptions Nullability and Nullable Reference TypesHandling nullable reference types is a critical part of C programming especially for avoiding null reference exceptions Let s take a look at some expert tips to safely work with nullable types without hurting performance Leverage null coalescing operators Null coalescing operators help you to write concise and performant code when working with nullable types ensuring that null values are replaced with a default value Bad way string input GetNullableString if input null input default The bad way example demonstrates a verbose and less performant code when dealing with null values Good way string input GetNullableString default The good way example uses a null coalescing operator which provides a more concise and efficient way of handling null values in C This ensures better C sharp performance and more maintainable code Use nullable reference types to avoid runtime null reference exceptionsNullable reference types introduced in C help catch potential null reference exceptions at compile time rather than runtime Bad way string name GetName int length name Length Potential NullReferenceExceptionIn the bad way example we have a potential NullReferenceException that would only be caught at runtime which can lead to unexpected crashes Good way string name GetName int length name Length No NullReferenceExceptionBy using nullable reference types and null conditional access in the good way example you can remove potential null reference exceptions in your code This helps create safer and more performant code that s easier to reason about during both development and execution Using Span and Memory for efficient buffer managementManaging memory and buffers efficiently play a crucial role in enhancing C performance Here we will examine how Span and Memory can aid in optimizing your code for better efficiency Know when to use Span over arraysSpan presents a more performant alternative to arrays in certain situations enabling manipulation of contiguous memory regions without the need for additional memory allocation or copying Bad way Using arrays may lead to unnecessary memory allocations and copyingbyte data GetData ProcessData data The bad way may result in additional memory allocation and copying which negatively impact performance Good way Using Span lt T gt avoids additional memory allocation and copyingbyte data GetData Span lt byte gt dataSpan data AsSpan ProcessData dataSpan By employing Span lt T gt in place of arrays you circumvent unnecessary memory allocations and copying leading to faster and more efficient code execution Use ArrayPool to recycle temporary buffersArrayPool is a shared collection of arrays that helps reduce the frequency of allocating and garbage collecting large buffers Bad way Allocating a new large bufferbyte buffer new byte Creating new buffers this way may cause frequent garbage collection and thus lower performance Good way Using ArrayPool lt T gt recycles previously allocated large buffersvar pool ArrayPool lt byte gt Shared byte buffer pool Rent try Work with the buffer finally pool Return buffer Using ArrayPool lt T gt enables your application to reuse previously allocated large buffers minimizing garbage collection occurrences and improving overall performance Lazy and Eager Loading TechniquesGrasping the distinction between lazy and eager loading techniques allows you to create high performing C applications Let s investigate how to make the correct choices according to your application s requirements Understand the trade offs between lazy and eager loadingLazy loading signifies that data is only loaded when required whereas eager loading fetches all data upfront Deciding on the appropriate method for your application entails balancing performance and memory consumption Bad way Eagerly loading all entities from the databasevar customers dbContext Customers Include c gt c Orders Lazily loading when not required leading to performance issuesvar customer dbContext Customers Find customerId var orderCount customer Orders Count The highlighted issues in the bad way can cause poor performance and unnecessary data loading Good way Eagerly loading specific data for an operationvar user dbContext Users Include u gt u Profile SingleOrDefault u gt u Id userId Lazily loading when appropriate for smaller object graphsvar product dbContext Products Find productId var price product Price By comprehending the trade offs between lazy and eager loading you can make informed decisions concerning when to utilize each method resulting in a more efficient application Implement lazy properties with the Lazy classThe Lazy lt T gt class allows you to create properties that are only initialized when accessed for the first time which could potentially enhance performance by preventing unnecessary initializations Bad way Initializing expensive resources upfrontprivate readonly ExpensiveObject expensiveObject new ExpensiveObject public ExpensiveObject ExpensiveObject gt expensiveObject An approach like this may lead to a waste of resources and lower performance due to expensive resources being initialized even when not required Good way Using Lazy lt T gt to initialize resources only when neededprivate readonly Lazy lt ExpensiveObject gt expensiveObject new Lazy lt ExpensiveObject gt public ExpensiveObject ExpensiveObject gt expensiveObject Value By implementing lazy properties with the Lazy lt T gt class you ensure that costly resources are initialized only when essential resulting in a more efficient and responsive application Influence of String Interpolation and Comparison on PerformanceHandling strings is a common operation in C that can have significant consequences on your application s performance We will delve into some expert guidance on optimizing string usage Use StringComparison options for efficient string comparisonString comparisons are frequent operations that can generate performance bottlenecks Employing the suitable StringComparison option can enhance the efficiency of string comparison Bad way Allocating additional memory for string conversion before comparisonbool equal string ToLower string ToLower This approach results in unnecessary string allocations before comparison leading to performance degradation Good way Comparing strings directly using StringComparison optionsbool equal string Equals string string StringComparison OrdinalIgnoreCase By leveraging StringComparison options you can avoid needless string allocations e g ToLower and carry out more efficient string comparisons Opt for StringBuilder over string concatenation in loopsWhen concatenating strings within loops or performing multiple string manipulations using StringBuilder is more efficient and can lead to significant performance improvements Bad way Concatenating strings in a loop creates many intermediate stringsstring result string Empty for int i i lt i result Iteration i The bad way generates many intermediate strings during concatenation which can lead to a significant drop in performance Good way StringBuilder minimizes string allocations and deallocationsStringBuilder sb new StringBuilder for int i i lt i sb AppendFormat Iteration i string result sb ToString Utilizing StringBuilder helps minimize the number of new string allocations and deallocations resulting in better performance and lower memory consumption By incorporating these expert tips into your C programming you can significantly improve the performance of your applications and write efficient well optimized code Mastering advanced C performance techniques is a key skill for senior developers who want to take their skills to the next level	2023-05-26 13:26:25
海外TECH	DEV Community	Critter Corner #2 - Share Your Beloved Animal Friends! 🐾	https://dev.to/codenewbieteam/critter-corner-2-share-your-beloved-animal-friends-1coa	Critter Corner Share Your Beloved Animal Friends Hello wonderful DEV community It s been a month since we kicked off our initiative to bring more animal companions into our midst and we want to give a shoutout to all those who have already participated We appreciate your contributions and the adorable snapshots you shared have certainly brought smiles to our faces While the response to our new weekly series has been heartwarming we d love to see even more of your furry feathered and scaly friends gracing our community After all there s nothing quite like the charm and joy that animals bring into our lives By sharing snapshots of your cherished animal friends you not only make Sloan incredibly happy but also help create a more vibrant and inclusive community for everyone We can t wait to see what furry feathery and scaly adventures await us And hey if you do happen to know any sloths looking for a job please do send them our way Sloan is patiently waiting to make some new friends who can match their unique pace and personality Share your beloved animal friend s photo in the comments below and let s make DEV a welcoming haven for all creatures great and small	2023-05-26 13:08:09
Apple	AppleInsider - Frontpage News	Apple's headset will need killer apps & services to be successful	https://appleinsider.com/articles/23/05/26/apples-headset-will-need-killer-apps-services-to-be-successful?utm_medium=rss	Apple x s headset will need killer apps amp services to be successfulAs Apple reportedly prepares to announce a mixed reality headset at WWDC analysts predict that the high cost and reliance on immersive apps and ecosystem integration will be key factors for its success An Apple headset may launch in With Apple s WWDC event drawing near there is great excitement regarding the upcoming revelation of Apple s mixed reality headset Speculations suggest that the announcement will take place during the event and the headset is projected to become available in the latter part of Read more	2023-05-26 13:47:55
Apple	AppleInsider - Frontpage News	Brisk It Origin-580 review: A smart smoker for backyard BBQing	https://appleinsider.com/articles/23/05/26/brisk-it-origin-580-review-a-smart-smoker-for-backyard-bbqing?utm_medium=rss	Brisk It Origin review A smart smoker for backyard BBQingThere are plenty of features to consider when buying a new smoker grill Arguably a Wi Fi connection is becoming one of those features so Brisk It s Origin smart grill with a sub price is a tempting consideration Brisk It Origin Wireless connectivity on a smoker is helpful because this grilling generally requires long cook times that must be monitored regularly The good news is that Brisk It s smoker and iPhone app performed as expected and helped manage the grill away from our backyard Read more	2023-05-26 13:34:20
Apple	AppleInsider - Frontpage News	Daily Deals: AirPods Max $449, $250 off M2 Pro MacBook Pro, 29% off Apple TV 4K, more	https://appleinsider.com/articles/23/05/26/daily-deals-airpods-max-449-250-off-m2-pro-macbook-pro-29-off-apple-tv-4k-more?utm_medium=rss	Daily Deals AirPods Max off M Pro MacBook Pro off Apple TV K moreToday s hottest deals include Insignia Smart Fire TVs from off an Apple Watch Series off an M Pro Mac mini AppleCare Kit and Wyze home security solutions from Save on an M Pro MacBook ProThe AppleInsider editorial team searches the internet for top notch bargains at ecommerce stores to curate a list of unbeatable deals on popular tech items including discounts on Apple products TVs accessories and other gadgets We post the top finds every day to help you save money Read more	2023-05-26 13:26:31
海外TECH	Engadget	The best gaming mouse in 2023	https://www.engadget.com/best-gaming-mouse-140004638.html?src=rss	The best gaming mouse in If you regularly play games on a PC a good mouse will give you greater control over your cursor add a few more buttons you can customize to your liking and generally make your downtime more comfortable In competitive games the best gaming mouse won t magically make you an unstoppable gamer but its faster response time and extra inputs should make for a more pleasurable and responsive experience as you continue practicing The best gaming mouse for your needs will ultimately be up to a matter of preference how well its shape fits your hand and how well its feature set suits your particular gaming needs Over the past three months though we set out to find a few options for PC gaming that might fit the bill be they for FPSes MMOs or anything in between After researching dozens of mice testing around and playing countless hours of Overwatch CS GO Halo Infinite and Final Fantasy XIV among others here s what we ve found with some general buying advice on top What to look for in a gaming mouseWired vs wirelessBuying a wireless gaming mouse used to mean sacrificing a certain level of responsiveness but thankfully that s no longer the case Over the last few years wireless connectivity has improved to the point where the difference in latency between a good wireless model and a tried and true wired gaming mouse is barely perceptible Note however that we re strictly talking about mice that use a GHz connection over a USB dongle not Bluetooth Many wireless models support both connection options which is great for travel but Bluetooth s latency is generally too high to be reliable for gaming Going wireless still has other trade offs too Battery life is improving all the time but with their higher performance demands and oftentimes RGB lighting wireless gaming mice tend not to last as long as traditional wireless models You shouldn t expect more than a few days of power from a rechargeable mouse you use regularly Beyond that good wireless gaming mice usually come at a much higher cost than their wired counterparts That s not to say the premium isn t worth it Who wants yet another cable on their desk Plus you may need a wireless model if you hate the feel of “cable drag or if your gaming PC is located in an awkward spot Many wireless gaming mice come with a cable you can hook up in a pinch as well But if price is any sort of concern a good wired mouse is usually a better value Comfort and grip typesEveryone s hands are different so at the end of the day calling one mouse “more comfortable than another is mostly subjective Ensuring your comfort is the most essential step when buying any mouse though so we ve done our best to consider how each device we tested works with small average sized and big hands alike We also considered how each device accommodates the three grip styles most people use while holding a mouse palm fingertip and claw As a refresher a palm grip is when your whole hand rests on the mouse with your fingers resting flat on the main buttons A fingertip grip is when you steer the mouse solely with the tips of your fingers with your palm not in contact with the device at all A claw grip is when your palm only touches the back edge of the mouse with your fingers arched in a claw like shape toward the buttons In general most people use a palm grip which tends to offer the greatest sense of control though depending on the size of your hand you may need your mouse to be a specific length to use it comfortably A fingertip grip can allow for more rapid movements while a claw grip is something of a balance between the two Switch and Click has a good breakdown if you d like a bit more detail but we ll note below if a mouse isn t well suited for a particular grip style For what it s worth yours truly is a claw gripper most of the time Build quality and designA good gaming mouse feels sturdy and won t flex or creak when used strenuously We also valued mice without any overly sharp angles or grooves that could be awkward for most people to hold And while most gaming mice have plastic exteriors not all plastic is created equal so we looked for finishes that were smooth not too slick and capable of withstanding the sweaty palms that often come with competitive gaming sessions The gaming mouse market is mostly split between two design styles ergonomic and ambidextrous Ergonomic gaming mice are almost always made with right handed users in mind and often feature dedicated thumb rests Ambidextrous mice are more symmetrical and designed to be used with either hand though they may not have extra buttons on both sides Which shape works best for you is largely a matter of personal preference A gaming mouse s feet meanwhile should provide a consistent glide and reduce the friction between your mouse and the surface beneath it as much as possible For the best performance look for feet made from PTFE aka Teflon All feet will eventually wear down but many mice come with spares and most manufacturers sell replacements if needed As for flashy RGB lighting it s a nice bonus but little more than that Still if you ve already kitted out your setup with RGB having a mouse with adjustable lighting effects can add to the gaming experience and more consumer tech could stand to do things for pleasure s sake More practically some mice let you assign custom lighting settings to separate profiles which can make it easier to see which one you re currently using WeightGaming mice have gotten lighter and lighter in recent years with some models we tested weighing as little as grams Your mouse doesn t need to be that light anything under g is still fairly low and it s not like a g mouse feels like an anchor Regardless a low weight makes it easier to pull off repeated fast movements with less inertia That said some players still enjoy a little bit of bulk in their gaming mouse relatively speaking especially with games that aren t as reliant on twitchy reactions To reach those lower weights some manufacturers have released gaming mice with “honeycomb style designs which come with several cutouts in the outer shell These mice can still perform great but having a bunch of holes that expose the internal circuit board to possible sweat dust and detritus isn t the best for long term durability We generally avoid recommending models with this design as a result Switches buttons and scroll wheelA growing number of gaming mice use optical switches instead of mechanical ones Since these involve fewer bits making physical contact they should generally be more durable and less prone to unwanted “double clicks over time Mice with mechanical switches still have plenty of merit but they carry a little more long term risk in a vacuum Since most people will use their gaming mouse as their mouse mouse we valued models whose main buttons have a softer feel when pressed with enough travel to make inadvertent actuations less frequent But even this is a matter of preference You may want lighter buttons if you play games that call for constant clicking Also we looked to testing from sites like Rtings to ensure each mouse we recommend has a sufficiently low click latency meaning your clicks will register with minimal lag Beyond the standard click panels a good gaming mouse should also have programmable buttons for quick macros or shortcuts For most games shoot for at least two extra buttons on the thumb side that are easy to reach and difficult to press by accident Lots of mice have more buttons which can be a plus but not if they force you to contort your fingers to avoid hitting them For MMO mice having at least side buttons is preferable in order to access as many hotbar commands as possible As for the scroll wheel it should have distinct ratcheted “steps that aren t too resistant but make it clear when you ve actually scrolled Its texture should be grippy and it shouldn t make any distracting amount of noise when used The wheel should also be clickable giving you another input to customize for certain games e g to control the zoom on a sniper rifle Sensors and performanceSome are more proficient than others but generally speaking the optical sensors built into most modern gaming mice are more than fast and accurate enough for most people s needs While shopping for gaming mice you ll see a number of terms related to sensor performance To be clear a gaming mouse s responsiveness doesn t come down to just one spec But for clarity s sake here s a rundown of the more noteworthy jargon DPI or dots per inch is a measure of a mouse s sensitivity The higher the DPI setting the more your cursor will move with every inch you move the mouse itself Many of the best gaming mice advertise extremely high DPIs that top out above or but that s largely marketing fluff Few people play above with a common sweet spot This concept is also referred to as CPI counts per inch which is probably the more accurate term though DPI is used more often IPS or inches per second refers to the maximum velocity a mouse sensor supports The higher the IPS the faster you can move the mouse before it becomes incapable of tracking motions correctly Acceleration goes with IPS In this context it refers to how many Gs a mouse can withstand before it starts to track inaccurately Polling rate is a measure of how often a mouse tells a computer where it is In general the more frequently your mouse reports information to your PC the more predictable its response time should be Anything at Hz or above is fine for gaming The current standard and likely the sweet spot for most is Hz Lift off distance is the height at which a mouse s sensor stops tracking the surface below it Many competitive players like this to be as low as possible in order to avoid unintended cursor movements while repositioning their mouse Software and onboard memoryIt doesn t take long to find horror stories about bugs and other niggling issues caused by gaming mouse software so the ideal app is one that doesn t force you to use it all the time It should let you adjust as many of the aspects above as possible ideally to several distinct profiles Preferably you can save your settings directly to the mouse itself letting you pick your customizations back up on another device without having to redownload any software All this is most important on Windows but Mac compatibility is always good to have too Warranty and customer supportMost major gaming mice brands offer warranties between one and three years The longer and more extensive a manufacturer s program is the better This is the case with most consumer tech but we note it here because the gaming mouse market is particularly flush with products from less than household names many of which you may see hyped up on YouTube Reddit or elsewhere around the web A bunch of these more obscure mice are genuinely great but if you ever buy from a more niche brand it s worth checking that some level of customer support is in place We ve made sure our picks for the best gaming mice aren t riddled with an abnormal amount of poor user reviews Best for most Razer Basilisk VOf the gaming mice we tested the Razer Basilisk V offers the most complete blend of price performance build quality and wide ranging comfort It s typically available between and and for that price it provides a sturdy body with a pleasingly textured matte finish and a shape that should be comfortable for each grip type and all but the smallest of hands It uses durable optical switches and its main buttons are large relatively quiet and not fatiguing to press repeatedly The Basilisk V has a total of customizable buttons including two side buttons that are easy to reach but difficult to press by accident There s a dedicated “sensitivity clutch on the side as well which lets you temporarily switch to a lower DPI for more precise aiming though it s the one button that may be harder for smaller hands to reach without effort Beneath those buttons is a well sized thumb rest The thumb wheel on top is loud and a bit clunky but it can tilt left and right and a built in toggle lets it switch from ratcheted scrolling to a free spin mode That s great for navigating unwieldy documents At roughly grams the Basilisk V is on the heavier side for twitch shooters but its PTFE feet let it glide with ease and Razer s Focus sensor helps it track accurately The weight shouldn t be a major hindrance unless you really take competitive FPS play seriously And if that s the case see our premium recommendations below Either way the included cable is impressively flexible and the mouse s RGB lighting is fun without being garish Razer s Synapse software is Windows only and can be naggy with updates but makes it easy enough to set profiles and adjust DPI polling rate macros and RGB effects You can also save up to five profiles to the mouse itself though your lighting customizations won t carry over nbsp The Basilisk V is an ergonomic mouse designed for right handed use If you want an ambidextrous model with similar performance in the same price range try Razer s Viper KHz It ditches the multi mode scroll wheel and its ludicrously high max polling rate of Hz has little real world benefit for most but it s much lighter at g and it has two customizable buttons on both its left and right sides We ll also note Logitech s G X which has a similar shape lower weight g and more side buttons but also louder main buttons a worse cable no RGB and a slightly more awkward fit for most hands Best premium Razer DeathAdder V ProIf money is no object the best gaming mouse we tested is the Razer DeathAdder V Pro It s pricey at but its superlight g wireless design and top notch sensor make it exceptionally responsive While smaller handed folks may find it a bit too tall most should find its gently curved shape to be comfortable over long gaming sessions regardless of their grip type Its two side buttons are largely easy to reach and nothing about its body creaks or flexes The scroll wheel is soft and quiet while the main buttons feel satisfying but not overly sensitive It also uses optical switches Battery life is rated at a decent hours per charge and you can connect an included and highly flexible USB C cable in a pinch Razer also sells a “HyperPolling dongle that increases the mouse s max polling rate to Hz but few need that and the company says using it can drop the mouse s battery life down to just hours Despite its higher cost the DeathAdder V Pro does forgo some of the Basilisk V s extras There s no RGB lighting no Bluetooth support for just one onboard profile and no free spinning or side tilting on the scroll wheel The DPI switcher is inconveniently located on the bottom of the mouse and there s no built in storage compartment for the USB dongle Much of that helps the mouse trim the weight however and the whole point of the DeathAdder V Pro is to excel at the essentials which it does Razer s Focus Pro K sensor is complete overkill in terms of its maximum specs but combined with the mouse s PTFE feet low click latency and easy to flick design it makes fast movements feel as “one to one as any mouse we tested If you re a competitive player who spends most of their time in twitchy FPS games the DeathAdder V Pro should feel tailor made to your priorities That s really the main market here though most people don t need to drop on this kind of device While its contours aren t as pronounced as the Basilisk V the DeathAdder V Pro is still designed for righties For an ambidextrous model Razer s Viper V Pro is really the “B option here providing the same excellent performance in a flatter design that should play nicer with small hands and lefties The Basilisk V Ultimate meanwhile is essentially a wireless version of our “best for most pick with the DeathAdder V Pro s upgraded sensor though it s the heaviest option of this bunch at g If you don t like the Razer aesthetic Logitech s G Pro Superlight is a close runner up whose praises we ve sung in the past If you see it for less than the Razer models or just want a high performing mouse for Mac it s one to keep an eye on but note that it has a lower battery life rating hrs and charges over microUSB instead of USB C Best budget Logitech G LightsyncIf you just want a competent gaming mouse for as little money as possible go with the Logitech G Lightsync Its design is likely too small and flat for palm grippers with large hands its scroll wheel feels somewhat mushy and its rubbery cable isn t ideal It uses mechanical switches too But the rest of it is smooth reasonably light g and sturdily built for the money plus its shape plays well with fingertip or claw grips It s also available in snazzy lilac and blue finishes alongside the usual black or white There are two customizable buttons on the right side plus a DPI cycle button on top but the G s design is otherwise ambidextrous The RGB lighting around the bottom of the device is tasteful and Logitech s G Hub software makes it simple enough to tweak settings on both Windows and macOS There s no onboard memory however While the Logitech Mercury sensor within the G is a few years old and technically lacking compared to most newer alternatives it s consistent and responsive enough to yield few complaints The set of PTFE feet help too You wouldn t go out of your way to get the G to win competitive games of Counter Strike but it s perfectly fine for most games If you d rather get a cheap gaming mouse Logitech s G Lightspeed has more or less the same shape and build quality but adds a more advanced sensor Logitech says it can get up to hours of battery life but it requires a AA battery to work which in turn pushes its weight to just over g Best for MMOs Logitech GIf you want a mouse specifically designed for MMO games get the Logitech G It s ancient having launched way back in and as such it uses mechanical switches and a laser sensor the Avago S that can be less precise than a more modern optical sensor It s hefty at g and it has a wide body that s not ideal for small hands or fingertip grips Plus its cable isn t particularly flexible and its scroll wheel and main buttons are just OK Hear us out though The G is far from the only mouse in this style to be on the larger side and any performance shortcomings it may have will be difficult to notice in an MMO Outside of faster action games it tracks fine For large and average hands particularly those that use a palm grip the G s sloped shape should be comfortable Plus the scroll wheel can tilt left and right The most important thing an MMO mouse can do is let you access several in game commands with minimal effort The G does that supplying customizable side buttons that are angled in a way that distinguishes them without constantly forcing you to look down Few MMO mice make these buttons “easy to reach but the G does about as well as one can The mouse s killer feature however is a third click button which sits under your ring finger and brings up an entire second set of commands when pressed This means you can access up to different inputs with just one hand which is a godsend in MMOs that ask you to juggle multiple hotbars worth of commands Being able to get through your “rotations in a game like Final Fantasy XIV without having to contort your fingers around the keyboard is hugely convenient This feature isn t exclusive to the G but it s not commonplace either Best of all this mouse is affordable typically retailing around There are certainly nicer MMO mice available but the G s functionality is enough to make it the best value in its market Other honorable mentionsPhoto by Jeff Dunn EngadgetCorsair Scimitar RGB Elite is a better built alternative to the G with a more modern optical sensor It lacks the G s third main button but it s a good buy if you don t need that and see it on sale The Ninjutso Sora comes from a lesser known brand and is harder to actually purchase as of this writing but it looks and performs like a G Pro X Superlight for smaller hands Its main buttons are fairly stiff but it s incredibly light at g so it plays great for FPS games The Lamzu Atlantis is another fine choice for FPSes with snappy performance and a symmetrical ultralight g build that s particularly well suited to claw grips Its bottom plate has a semi open design however so it s at least somewhat more susceptible to damage from dust and debris than our picks above The Asus ROG Gladius III doesn t stand out from our main recommendations in terms of design or performance and its software can be buggy but it s unusually easy to repair That is admirable and should make the mouse a good long term investment for DIY types This article originally appeared on Engadget at	2023-05-26 13:15:18
金融	金融庁ホームページ	つみたてNISA対象商品届出一覧及び取扱金融機関一覧を更新しました。	https://www.fsa.go.jp/policy/nisa2/about/tsumitate/target/index.html	対象商品	2023-05-26 15:00:00
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