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performance

Great Reads

Constructing Fast Lexical Analyzers with RE/flex - Why Another Scanner Generator?

by Robert van Engelen

RE/flex for C++

Duck Three Ways: File I/O and String Performance Comparison Between C#, C++, and C

by Michael Sydney Balloni

Different languages and approaches are evaluated for a file and string processing benchmark

Asp.Net: Monitor performance without using windows performance counters.

by Sergey Volk

Open source framework for monitoring Asp.Net Web Api 2 and MVC5 applications performance without using windows performance counters, automates performance counters data collection, store and visualization.

Parallel Scalable Burrows-Wheeler Transformation (BWT) Using Intel® Threading Building Blocks and OpenMP Libraries

by Arthur V. Ratz

This article is a practical guide on using Intel® Threading Building Blocks (TBB) and OpenMP libraries for C++ based on the example of delivering parallel scalable code that implements Burrows-Wheeler Transformation (BWT) algorithm.

Latest Articles

How to Use BenchmarkDotNet: 6 Simple Performance-Boosting Tips to Get Started

by Dev Leader

Learn how to use BenchmarkDotNet to effectively create and run benchmarks on your C# code. Dig into where you have opportunities to optimize your C# code!

HigLabo.Mapper, Creating Fastest Object Mapper in the World with Expression Tree in 10 Days

by Higty

Fastest mapper in the world, easy to Use, ZERO configuration, FULL customization

B-Tree Sorted Dictionary

by Gerardo Recinto

In-memory B-Tree sorted dictionary

Threading - Under the Hood

by Marco-Hans Van Der Willik

This article explores the performance, scalability and limitations of the various .NET Threading Implementations.

All Articles

Performance

.NET Performance Tip – Benchmarking

21 Jul 2018 by Ben Hall (failingfast.io)

Micro-Benchmarking Your C# - Pitfalls and A Tool To Help You Mitigate Them

Video Tip:- Improve SQL Server performance by using SQL server profiler

16 Oct 2011 by Shivprasad koirala

If you want to quickly get index suggestions and improve performance in SQL Server, then Profiler and tuning wizard is the first place to start.

Measuring the performance of AES implementations in .Net Framework (AesManaged vs AesCryptoServiceProvider)

21 Nov 2014 by Farzad E. (dNetGuru)

.Net framework provides two classes that implement AES, a native implementation that calls CAPI and AesManaged which is a purely managed implementation. Which one should you use ?

Get Angular Watcher Count in any Browser

9 Aug 2016 by Joshi, Rushikesh

Get Angular Watcher Count in any Browser, just run this script.

Java 9 Flow API vs LMAX Disruptor

30 Apr 2018 by vudangngoc

A quick comparison of Java 9 Flow API and Lmax Disruptor

High Resolution Timing

19 Dec 2019 by Rick York

A simple, header-only class for high resolution timing

Accessing Value from System.Data.DataTable : Tip

27 Oct 2010 by Andrew Rissing

Technically, the best approach here for speed and flexibility is to do the following:public class TestClass{ private const string EMP_ID = "EmpId"; public void MyTestMethod() { //GetData fetches data from the database using a SQL query DataTable dt =...

IE AJAX POST Requests

7 Aug 2014 by Zachary Gardner

IE waits till the end of the thread to send AJAX POST requests to the server.

Using a Variation on RLE to Achieve Lossless Compression for Near-consecutive or Grouped Tabular Data

9 Jun 2023 by Jack Devey

Introducing a lossless compression mechanism for data structured in a table or matrix

Do not use "using" for WCF Clients

22 May 2011 by Jeremy Hutchinson

Or you can use T4 to generate a static class wrapper around the service. Then your call can look like this:SvcWrapper.Login(username, password);The full explanation and sample code is located here[^].

Java & Struct/Value Type Benefits & How to Obtain Them

27 Apr 2018 by Member 13797506

Introduction to structs (value types) in Java

Accessing Value from System.Data.DataTable : Tip

27 Oct 2010 by A.J.Wegierski

int empId = dt.Columns[EMP_ID].Ordinal;...int empId = Convert.ToInt32(dRow[empId]);

Synchronize file date time on multiple IIS servers and fix ETag discrepency

17 May 2011 by Omar Al Zabir

Files with different date time get different ETag generated by IIS. As a result, on a web server farm, each webserver sends different ETag for the same file as the files are copied to those servers at different date time. Here's a script that can set date time of same file across multiple servers to

web_development

Find a Performance Counter Instance by a Process ID

22 Jun 2013 by Sebastian Solnica

Find a performance counter instance by a process ID

MiniProfiler + Log4Net

4 Jun 2014 by Thang Believe

A solution for performance logging

For Vs Foreach - Benchmark 2013

25 Jan 2013 by adriancs

Performance Comparison of For Loop and Foreach Loop

Do not use "using" for WCF Clients

18 May 2011 by Patrick Kalkman

Good Tip, got my 5!As an alternative to your tip, when using generated proxies you could also add the logic to a partial class with the same name as the proxy class, see below.public partial class MyGeneratedProxyClient : IDisposable{ void IDisposable Dispose() { try...

A Polygon-triangulation Algorithm with Time Complexity O(N*logN)

16 Jan 2016 by Mathew_wwx

This tip will introduce a library written in C++ that wraps up a 2d polygon triangulation algorithm with time complexity of O(N*logN), the algorithm works on both self-intersected and non self-intersected polygons.

Performance measurement of HashTable vs. Dictionary

24 Sep 2013 by AmitGajjar

Case study for checking the performance of HashTable and Dictionary.

WCF does not support Compression out of the box, so fix it

8 Aug 2011 by Omar Al Zabir

WCF does not support Compression out of the box, so fix it

Preserving Overheat Multithreading

17 Apr 2016 by Adamanteus

Preserving overheating processor in multitasking environment

machine-learning

Do not use "using" for WCF Clients

17 May 2011 by Omar Al Zabir

Traditional using() block disposes WCF clients incorrectly when there's a communication exception, eg dropping network connection. It raises exception during the dispose and thus the resources held by the WCF client aren't released properly. After some time, you end up with memory leaks.

Improve the Performance of ASP.NET MVC Web Application Using HTTP Compression

27 Feb 2016 by Arvind Gehlot

Use of HTTP Compression on ASP.NET / MVC pages using IIS or Server side code

The Myth of the CDN

12 Nov 2013 by Robert Hoffmann

Is using a CDN for a JS Framework really worth it ?

Common serialization mistakes to avoid

17 May 2011 by Omar Al Zabir

Caching frequently used objects, that are expensive to fetch from the source, makes application perform faster under high load. It helps scale an application under concurrent requests. But some hard to notice mistakes can lead the application to suffer under high load, let alone making it perform be

Balanced Index of an Array

27 Jan 2015 by Paul Schwartzberg

This tip shows two possible methods to find the balanced index of an array in C#.

Automate PNG and JPG Image Optimization

5 Dec 2013 by Tharaka MTR

How to automate PNG and JPG image optimization

Your system running slow. It may not be a virus.

6 Jul 2010 by Matthew Dennis

While a slow system may be a symptom of viruses or other malware, it may be an indication of disk problems.

Auto Generate Code (CRUD) for 3 Layered architecture

12 Dec 2016 by Suresh Dasari's

Auto Generate Code (CRUD) for 3 Layered architecture (Entity, Data Access & Business Layer) with Stored Procedures based on table design.

SQL-Server-2005

How Utilizing Lazy Evaluation and Caching can Save Us from Wasteful Computation

30 May 2022 by Bohdan Stupak

This article shows how utilizing lazy evaluation and caching can save us from wasteful computation

How to Improve Performance of Query

8 Oct 2014 by Arora_Ankit

This tip will provide you with an idea about basic things that you can use to get better performance from query.

SQL-Server-2008R2

How to Get A in Yslow and Tune Up Your Website

12 Sep 2012 by taha bahraminezhad Jooneghani

About how to get high performance from your website and get a good score from Yslow

Tip: Slow ASP.NET MVC Start-up Has Users Waiting On Your Web Site

13 Aug 2016 by raddevus

My ASP.NET MVC 5 web site is simple but gets small amount of traffic so after 20 minutes, it shuts down. That means new visitors wait 20 seconds or more to see my landing page. Here's a way to test and see if that is your problem.

WPF: Getting Rid of "magic strings" Reduces Speed

2 May 2016 by Leonid Osmolovski

Speed reduction that may occur when using expressions instead of string constants in INotifyChanged paradigm and a way to work around this

Performance analysis for String and StringBuilder

23 May 2012 by Shweta Lodha

Performance analysis for String and StringBuilder

Responsive GUI Application Tricks

29 Jul 2016 by PawelBujak

How to avoid blocking long operations in GUI applications, that lead to hung state.

BackgroundWorker

How to Share Resources Between Threads?

1 Aug 2018 by vudangngoc

Synchronization is slow, why and how to do better?

multi-threading

Accessing Value from System.Data.DataTable : Tip

23 Oct 2010 by TweakBird

Accessing Value from System.Data.DataTable

AngularJS ng-repeat Alternative Approach

11 Jul 2016 by Karthik Coder

How to replace the ng-repeat with Custom Directive

4 Ways to Improve Your Lotus Notes Performance

7 Sep 2015 by Atul Kharecha

If you are using Lotus Notes as an email client and it is running very slowly, this tip will help you to overcome the performance issues.

Iteration Over Java Collections with High Performance

6 Jul 2018 by vudangngoc

Travelling over Java collections is just a piece of cake, but when the size of the collections increases you have to choose wisely

24 May 2023 by Mirzakhmet Syzdykov

Traveling Salesman Problem using Ant Colony Optimization