pankkor/perf_variance.md

Last active April 28, 2025 12:56

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Reduce performance variance of benchmarks

Raw

Reduce performance variance of benchmarks

Linux

Set/Reset the CPU governor

cpupower frequency-info -o proc
sudo cpupower frequency-set --governor performance

Disable CPU boosting

echo 0 | sudo tee /sys/devices/system/cpu/cpufreq/boost

Pin task to a CPU

# Pin task to CPU 0, 1, 2, 4
taskset --cpu-list 0-2,4 ./command

Disable address splace layour randomization (ASLR):

echo 0 | sudo tee /proc/sys/kernel/randomize_va_space

Reenable

echo 2 | sudo tee /proc/sys/kernel/randomize_va_space