Mastodawn

[Python subprocess/psutil: 15년 묵은 Busy-loop 폴링을 끝내고 진정한 이벤트 기반 대기로 전환

Python의 subprocess 모듈과 psutil 라이브러리가 15년 동안 사용해온 비효율적인 'Busy-loop 폴링' 방식을 이벤트 기반 대기(Event-driven waiting)로 개선하여 CPU 사용량과 지연 시간을 줄이고 확장성을 향상시켰습니다.

https://news.hada.io/topic?id=26263

#python #subprocess #psutil #eventdriven #performance

Python subprocess/psutil: 15년 묵은 Busy-loop 폴링을 끝내고 진정한 이벤트 기반 대기로 전환

<p>요약:</p> <ul> <li>Python의 <code>subprocess</code> 모듈과 <code>psutil</code> 라이브러리는 지난 15년 동안 프로세스 종료 대기(<code>wa...

GeekNews

Hacker News Dec 27

Detect memory leaks of C extensions with psutil and psleak

https://gmpy.dev/blog/2025/psutil-heap-introspection-apis

#HackerNews #DetectMemoryLeaks #psutil #psleak #CExtensions #MemoryManagement #TechNews

Giampaolo Rodola

N-gated Hacker News Oct 31

Ah yes, nothing says "cutting-edge tech" like freethreaded Python wheels for #psutil. 🤓 Let's gather the entire Python community to celebrate this riveting achievement of compiling some C code and throwing it into a wheel like it's 1998. 🎉 Bravo, dear developers—yet another feature that will change everything (or nothing).
https://gmpy.dev/blog/2025/wheels-for-free-threaded-python-now-available-in-psutil #PythonCommunity #TechNews #CCode #Innovation #Celebration #HackerNews #ngated

Giampaolo Rodola

Hacker News Oct 31

Wheels for free-threaded Python now available for psutil

https://gmpy.dev/blog/2025/wheels-for-free-threaded-python-now-available-in-psutil

#HackerNews #Wheels #psutil #Python #FreeThreaded #Development #OpenSource

Giampaolo Rodola

GripNews Oct 31

🌘 psutil 7.1.2 支援無鎖 Python 版本，釋出預編譯 Wheel 套件
➤ 提升 Python 多執行緒效能：psutil 率先支援無鎖編譯與 Wheel 分發
✤ https://gmpy.dev/blog/2025/wheels-for-free-threaded-python-now-available-in-psutil
Python 函式庫 psutil 最新版本 7.1.2 已正式支援無鎖（free-threaded）Python 編譯器，並提供預編譯的 Wheel 套件，讓使用者無需自行編譯 C 擴充模組，即可在多核心 CPU 環境下實現真正的平行運算，大幅簡化安裝流程。此里程碑的達成歸功於社羣的貢獻，尤其感謝 Lysandros Nikolaou 在 C 程式碼重構上的關鍵協助。雖然目前無鎖 Python 的 Wheel 採用率仍不高，但這項更新對 CPU 密集型應用程式而言意義重大，能有效提升處理器利用率。未來 Python 3.15 的 PEP 803 與 P
#Python #psutil #Free-threaded #Wheel #GIL

Giampaolo Rodola

Harald May 9, 2025

I want to measure run time of a Python program and compare it to /usr/bin/time. The script, t.py:

import psutil, time,
startSecs = psutil.Process(os.getpid()).create_time()
print("startup took %.3fs" % (time.time() - startSecs))

run as:

/usr/bin/time -f 'wall=%e' python3 t.py

output:

startup took 0.822s
wall=0.03

where 0.8s is quite obviously wrong, not only because of the wall=0.03, but because there is no noticeable wait of nearly a second. How come?

#python #programming #shell #psutil

Begasus Jul 29, 2024

Checking #psutil 6.0.0 on #HaikuOS 64bit made me look into what applications actually use it, this led into bumping our packages for #urllib3 and #pyzmq, for #Vorta and #Spyder I couldn't use the latest releases as they depend on packages not available/portable at the moment.
Nevertheless it turned out pretty good. :D
#playground! (nothing in the depot for installations, this should be do-able with pip install ...).
EDIT: a big thanks to @mmu_man for the patch in psutil!

Begasus Feb 27, 2024

#HaikuOS So once in a while you stumble into #Python yay! ;)
This time upstream asked to checkout latest changes for #borgbackup,, seemed that was easy to update.
Time for some checking, earlier I did this with #borgweb, which was still OK, upstream mentioned #Vorta so I wanted to have a look there, #pip to the rescue! So I thought :P
No go on their latest version (requires #pyQt6), prior version seemed to be fine, but then #psutil got in the way, so updating that got me a working #Vorta! :D