Blog
Releases, deep dives, war stories
RSS

Posts tagged “performance”

  1. From Python 3.3 to today: ending 15 years of subprocess polling

    Featured

    Replacing subprocess.Popen.wait()’s busy-loop with an event-driven model, in psutil then upstream CPython

  2. Speeding up pytest startup

    Trimming heavy imports and plugins: 0.42s → 0.30s (~28%)

  3. Improved process_iter()

    5.3.0 adds attrs and ad_value parameters to process_iter(), letting you pre-fetch attributes in one shot

  4. Making psutil twice as fast

    Featured

    New Process.oneshot(), caching shared syscalls and halving the cost of multi-field queries