# What is pthread\_cond\_wait in PProf.jl output?

**URL:** <https://discourse.julialang.org/t/what-is-pthread-cond-wait-in-pprof-jl-output/94229>\
**Category:** Profiling\
**Tags:** pprof\
**Created:** [February 7, 2023, 6:39pm UTC](https://discourse.julialang.org/t/what-is-pthread-cond-wait-in-pprof-jl-output/94229 "2023-02-07T18:39:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aksahoo](https://avatars.discourse-cdn.com/v4/letter/a/9e8a1a/32.png) [@aksahoo](https://discourse.julialang.org/u/aksahoo)\
**Post date:** [February 7, 2023, 6:39pm UTC](https://discourse.julialang.org/t/what-is-pthread-cond-wait-in-pprof-jl-output/94229/1 "2023-02-07T18:39:37Z")

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I got a pthread\_cond\_wait in my profilling with PProf.jl  
What does that men? and how to avoid that or reduce that time?

 ![Screenshot](https://global.discourse-cdn.com/julialang/original/3X/5/7/57e677033a769a8e3cf4703b757624ec49cd90d9.png)

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**Author:** ![vchuravy](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/vchuravy/32/8_2.png) [@vchuravy](https://discourse.julialang.org/u/vchuravy)\
**Post date:** [February 17, 2023, 1:24am UTC](https://discourse.julialang.org/t/what-is-pthread-cond-wait-in-pprof-jl-output/94229/2 "2023-02-17T01:24:36Z")

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That means you have some threads that are sleeping, so generally safe to ignore.