How to add custom columns to BenchmarkDotNet summaries
This guide shows how to add custom result columns to BenchmarkDotNet summaries using in-process diagnosers and a source generator library.
Performance
Single-file C# benchmarks with BenchmarkDotNet
Learn how to run benchmarks from a single C# file using BenchmarkDotNet.
Your cache is not protected from cache stampede
Learn how ConcurrentDictionary and MemoryCache can cause multiple identical requests under load, and discover how HybridCache solves this problem.
A fast way to insert large arrays into SQL Server
How to quickly and efficiently load large data into SQL Server: comparing regular INSERT, SqlBulkCopy with DataTable, and IDataReader.
StringBuilder tip: use Append without ToString
Analysis of CA1830 code quality rule and its impact on application performance
Use indexer instead of LINQ method
Analysis of CA1826 code quality rule and its impact on application performance
xxHash: the fastest hashing algorithm in the .NET ecosystem
How to use xxHash in C# for fast, stable hash computation without allocations
CA2254, logging in C# and performance issues
Short guide to CA2254, why logging can degrade performance, and how LoggerMessageAttribute helps.
Object Pools in C#
A deep dive into performance and internal implementation details of Object Pool pattern in C#
FrozenDictionary under the hood
A deep dive into performance and internal implementation details of FrozenDictionary in .NET 8
How data affects performance
A short experiment on how array initialization methods impact performance
How to avoid mistakes in benchmarks
Common mistakes in writing benchmarks in C# and how to fix them
Ways to create arrays in C#
A performance and applicability comparison of seven different ways to create arrays in C#
Fast modulo calculation in FrozenDictionary
An analysis of the optimized modulo calculation algorithm used in FrozenDictionary, compared to the classic approach
Speeding up Dictionary with structs
Optimizing Dictionary performance in C# using structs and CollectionsMarshal
The 16-byte rule: performance of C# structures
Detailed exploration of the performance differences between C# structures and classes
What is ReadOnlySpan<T> in C# and how fast is it?
A performance comparison between ReadOnlySpan<T> and string operations in C#
Fastest way to extract a substring in C#
A performance comparison of different substring extraction methods in C#
Performance issues when using a method as a parameter in C#
Investigating performance issues when passing a method as a parameter in C#
Impact of EF mapping strategy on SQL queries performance
A performance comparison of different EF mapping strategies in SQL Server