rdtscbench | rdtscbench measures small and large operations using clock

rdtscbench is a C library. rdtscbench has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

rdtscbench measures small and large operations using clock cycles as time measurement unit. It uses RDTSC x86 instruction to get clock cycles from CPU registers. rdtscbench is free software licensed under the GPL v2. Peter Senna Tschudin - peter.senna@gmail.com. IMPORTANT: Before running make and rdtscbench disable CPU dynamic clock. On Linux: # service cpuspeed stop. IMPORTANT 2: If the computer hybernates during the measurement, it may break the measurement. The Makefile runs gethz.sh to cat /proc/cpuinfo looking for the CPU speed. The result is saved in hzdef.h. See example: $ cat /proc/cpuinfo |grep MHz cpu MHz : 2701.000 gethz.sh converts 2701.000 to 2701000000LL and saves it at hzdef.h. buf - C code optimization tests. getpid - Very simple example of how to use rdtscbench. matrix - Measuring C code optimization - moreExamples - Measuring: gettimeofday(), simplemath[], sysconf(), malloc ( 1000000 * sizeof ( char ) ), malloc ( 1000000000 * sizeof ( char ) ), Process Communication over pipes;. rdtscbench - The source code of rdtscbench. stacko - C code optimization tests.