Issues

• record stalls or hangs processes with many native threads (torch on many-core CPUs): Process::lock() ptrace-stops every OS thread on every sample

  benfred/py-spy#872 · Filter by author sendaoYan opened on Sep 20, 2026

• Wrong interpreter base when libffi static trampolines remap a page of the python binary (uv / python-build-standalone)

  benfred/py-spy#865 · Filter by author ivan-botco opened on Aug 19, 2026
  1

• Retry backoff for getting thread names

  benfred/py-spy#863 · Filter by author jonashaag opened on Jul 17, 2026

• py-spy sometimes combines different threads from differnet pools with the same TID into the same view

  benfred/py-spy#853 · Filter by author gibsondan opened on May 18, 2026

• dump --subprocesses aborts on first non-Python child instead of skipping

  benfred/py-spy#846 · Filter by author ravwojdyla opened on May 1, 2026

• Export NativeStack and dependencies as part of public interface

  benfred/py-spy#828 · Filter by author charles-dyfis-net opened on Mar 12, 2026
  3

• py-spy immediately OOM-killed on Raspberry Pi Zero 2 W (418 MB RAM, aarch64)

  benfred/py-spy#826 · Filter by author puigru opened on Mar 1, 2026

• Python 3.14 - Failed to find python version from target process

  benfred/py-spy#823 · Filter by author MaxG87 opened on Jan 20, 2026
  10

• py-spy error when profiling vllm with --native flag

  benfred/py-spy#822 · Filter by author raduvin opened on Jan 12, 2026

• Using --gil and --idle together

  benfred/py-spy#813 · Filter by author pezosanta opened on Nov 26, 2025

• Excessive CPU usage unless using --gil option under Python 3.12 asyncio

  benfred/py-spy#811 · Filter by author esarp opened on Nov 12, 2025
  1

• Document setuid safety

  benfred/py-spy#809 · Filter by author zacps opened on Oct 24, 2025
  1

• Understanding py-spy>Ns behind in sampling results may be inaccurate. Try reducing the sampling rate

  benfred/py-spy#807 · Filter by author leuchthelp opened on Oct 18, 2025

• py-spy panics if stdout is closed

  benfred/py-spy#806 · Filter by author royjacobson opened on Oct 12, 2025

• if no pid the py-spy will print the error twice

  benfred/py-spy#804 · Filter by author yihong0618 opened on Oct 11, 2025

• --native causes sampling errors for Rust to Python callbacks

  benfred/py-spy#797 · Filter by author staadecker opened on Aug 10, 2025

• How to Identify High GIL Contention in a Flame Graph?

  benfred/py-spy#782 · Filter by author shenghansen opened on Jul 19, 2025

• Question: Is there a way to filter out modules?

  benfred/py-spy#781 · Filter by author ghoshi-deshaw opened on Jul 17, 2025

• Release 0.4.0+ for Alpine

  benfred/py-spy#778 · Filter by author sid-maddy opened on Jul 16, 2025

• Occasional Corrupted Stack Frame in py-spy raw output

  benfred/py-spy#772 · Filter by author rafaelha opened on Jul 3, 2025

• Mostly Failed to suspend process errors

  benfred/py-spy#764 · Filter by author Morikko opened on Apr 28, 2025

• No such file or directory without strace (os error 2)

  benfred/py-spy#763 · Filter by author Morikko opened on Apr 28, 2025

• Add thread information to raw format

  benfred/py-spy#761 · Filter by author kasium opened on Apr 15, 2025

• sudo !! tip should be shell-dependent

  benfred/py-spy#760 · Filter by author pavelzw opened on Apr 11, 2025
  1

• Please package for musllinux

  benfred/py-spy#757 · Filter by author hykilpikonna opened on Apr 4, 2025