Skip to content

Instantly share code, notes, and snippets.

@pankkor

pankkor/perf_variance.md

Last active April 28, 2025 12:56
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save pankkor/b0970eb28547f5afa6776f8a8a143dfa to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save pankkor/b0970eb28547f5afa6776f8a8a143dfa to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. pankkor revised this gist Apr 28, 2025. No changes.
  2. pankkor revised this gist Apr 28, 2025. 1 changed file with 2 additions and 0 deletions.
    2 changes: 2 additions & 0 deletions perf_variance.md
    View file
    Original file line number Diff line number Diff line change
    @@ -1,3 +1,5 @@
    Reduce performance variance of benchmarks

    # Linux
    - Set/Reset the CPU governor
    ```
  3. pankkor revised this gist Apr 28, 2025. No changes.
  4. pankkor created this gist Apr 28, 2025.
    23 changes: 23 additions & 0 deletions perf_variance.md
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,23 @@
    # 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
    ```