Open Source C Benchmark Software

nmon is short for Nigel's Performance Monitor It either shows you the stats on-screen updating once a second or saves the data to a CSV file for later analysis and graphing. For details see the homepage ==> http://nmon.sourceforge.net Please use the latest version. The new version "njmon" outputs JSON format that a lot of tools use these days. It integrates well with saving data directly to InfluxDB and graphing with Grafana.

I/O performance Analysis Tool

lmbench is a suite of simple, portable, ANSI/C microbenchmarks for UNIX/POSIX. In general, it measures two key features: latency and bandwidth. lmbench is intended to give system developers insight into basic costs of key operations.

pdfcrack is a command line, password recovery tool for PDF-files.

Portable, fully-threaded I/O benchmark program

BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.

System Stability Tester is a multi platform open source clone of SuperPI and comes with a GUI and a CLI. It can be used for CPU and RAM burning, stressing and benchmarking.

OpenGLChecker is a fast and smooth program that retrieves relevant information about your OpenGL implementation. It can also test your computer's performance with fully scripted benchmarks. This allows you to write your own benchmark scripts for testing your OpenGL performance.

wrk is a modern, command-line HTTP benchmarking tool engineered for high performance, capable of generating substantial load using a single multi-core CPU by leveraging multithreading and scalable event notification systems. An optional LuaJIT script can perform HTTP request generation, response processing, and custom reporting. Details are available in SCRIPTING and several examples are located in scripts. The machine running wrk must have a sufficient number of ephemeral ports available and closed sockets should be recycled quickly. To handle the initial connection burst the server's listen(2) backlog should be greater than the number of concurrent connections being tested.

Having been a Mac OSX user now for some years I appreciate the simplicity of CoconutBattery (http://www.coconut-flavour.com/), which shows you all relevant information of the battery of your laptop (iBook, PowerBook, MacBook, ...) and has one outstanding feature: you can save the current health state of the laptop's battery and thus monitor the long term development (degradation) of the battery. Since I have to work in Windows at work :-( I was looking for a similar tool in the MS world. You can find a number of battery monitoring programs for MS Windows, which give you a plethora of (useless) information - or do not work at all. Finally I decided to make one of my own (the world waited for that so badly!). And here it is. Since I did not want to restrict it to Windows only I made it a GTK application, which is cross platform portable. I created the low level data gathering functions for both Windows and Linux. You are very welcome to add additional ports (e.g. BSD or whatever).

The program thrulay is used to measure the capacity, delay, and other performance metrics of a network by sending a bulk TCP or UDP stream over it.

The fs_mark benchmark tests synchronous write workloads. It can vary the number of files, directory depth, etc. It has detailed timings for reads, writes, unlinks and fsyncs that make it good for simulating mail servers and other setups.

This Solaris system monitoring tool allows to perform standard SAR activity reporting and NMON activity reporting. The NMON output can be imported with Excel or RRD to output simple and efficient graphs.

HardInfo displays information about your hardware and operating system.

QuickMAN is a Mandelbrot fractal generator with multicore support. ASM-optimized code can reach over 100 billion iterations per second. Features an easy-to-use GUI, realtime pan/zoom, multiple palettes, image logging, and saving in PNG format.

SLOCCount is an easy-to-use tool that counts Source Lines of Code (SLOC). It auto-determines the language(s) (inc. C, C++, Ada, Assembly, shell, COBOL, C#, Fortran, Haskell, Java, LISP/Scheme, Perl, PHP, Python, Ruby, SQL). It also estimates cost & time.

netstress is a client/server utility designed to stress & benchmark network activity of a given ethernet device or path using simulated (random) real world data and packet sizes instead of fixed data and packet sizes.

BEYE (Binary EYE) is a free, portable, advanced file viewer with built-in editor for binary, hexadecimal and disassembler modes. It contains a highlight AVR/Java/i86-AMD64/ARM-XScale/PPC-64 and other disassembler, full preview of MZ,NE,PE,ELF and other.

A powerful C-written web application testing and load generating tool. It uses HTTP, FTP and TLS/SSL stacks, simulating tens of thousand users / clients each with own IP-address. The goal is to provide an alternative to Spirent Avalanche and Ixia IxLoad.

Distributed session caching tools and APIs, primarily for SSL/TLS servers though perhaps useful for other (non-SSL/TLS) circumstances. Also includes a self-contained network abstraction library (libnal), and the sslswamp SSL/TLS benchmark/test utility.

Both a network throughput testing tool and a simple demonstration of IPv6 socket programming. Also includes a reuseable IPv6 API emulation library.

mdtest is an MPI-coordinated metadata benchmark test that performs open/stat/close operations on files and directories and then reports the performance.

UMark is a graphical interface that allows gamers to easily configure and run benchmarks on Unreal Tournament 200x. It supports "botmatch", "flyby", and "timedemo" benchmarks. You may save/load results, or submit them online.

Block level test/exerciser utility for Linux to produce synthetic random/sequential IO patterns

A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.