[GH-ISSUE #142] Super high cpu usage #101

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opened 2026-02-28 14:30:37 +03:00 by kerem · 14 comments

kerem commented 2026-02-28 14:30:37 +03:00

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Originally created by @erikc96 on GitHub (Aug 23, 2021).
Original GitHub issue: https://github.com/jpochyla/psst/issues/142

I just caught Psst using 90% of my cpu on an m1 mac. Is this not typical?

Originally created by @erikc96 on GitHub (Aug 23, 2021). Original GitHub issue: https://github.com/jpochyla/psst/issues/142 I just caught Psst using 90% of my cpu on an m1 mac. Is this not typical?

kerem closed this issue 2026-02-28 14:30:37 +03:00

kerem commented 2026-02-28 14:30:38 +03:00

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@jpochyla commented on GitHub (Aug 23, 2021):

No it is not typical. Do you have a reproducible example?

<!-- gh-comment-id:904034049 --> @jpochyla commented on GitHub (Aug 23, 2021): No it is not typical. Do you have a reproducible example?

kerem commented 2026-02-28 14:30:38 +03:00

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@Kethku commented on GitHub (Aug 24, 2021):

Did you build it in release mode?

<!-- gh-comment-id:904964416 --> @Kethku commented on GitHub (Aug 24, 2021): Did you build it in release mode?

kerem commented 2026-02-28 14:30:38 +03:00

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@Kethku commented on GitHub (Aug 24, 2021):

On windows, psst uses .1% of my cpu while playing. In contrast, spotify sticks right around 1.7% to 2%. I definitely do not incounter 90% usage

<!-- gh-comment-id:904965556 --> @Kethku commented on GitHub (Aug 24, 2021): On windows, psst uses .1% of my cpu while playing. In contrast, spotify sticks right around 1.7% to 2%. I definitely do not incounter 90% usage

kerem commented 2026-02-28 14:30:38 +03:00

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@jpochyla commented on GitHub (Aug 25, 2021):

I've pushed a little optimization commit, ambient playback now takes about 3% on macOS MB Air. Of course this all depends on a lot of details, and Psst is not optimized much, there should be a lot of low-hanging fruit still.

<!-- gh-comment-id:905579192 --> @jpochyla commented on GitHub (Aug 25, 2021): I've pushed a little optimization commit, ambient playback now takes about 3% on macOS MB Air. Of course this all depends on a lot of details, and Psst is not optimized much, there should be a lot of low-hanging fruit still.

kerem commented 2026-02-28 14:30:38 +03:00

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@pablodz commented on GitHub (Aug 26, 2021):

0.00%

<!-- gh-comment-id:905992437 --> @pablodz commented on GitHub (Aug 26, 2021):  0.00%

kerem commented 2026-02-28 14:30:38 +03:00

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@Kethku commented on GitHub (Aug 26, 2021):

Repeat of https://github.com/jpochyla/psst/issues/12

<!-- gh-comment-id:906091155 --> @Kethku commented on GitHub (Aug 26, 2021): Repeat of https://github.com/jpochyla/psst/issues/12

kerem commented 2026-02-28 14:30:38 +03:00

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@Kethku commented on GitHub (Aug 26, 2021):

@erikc96 could you run a profiler on the app when it is using all that cpu to get an estimate of where that cpu time is going?

<!-- gh-comment-id:906091341 --> @Kethku commented on GitHub (Aug 26, 2021): @erikc96 could you run a profiler on the app when it is using all that cpu to get an estimate of where that cpu time is going?

kerem commented 2026-02-28 14:30:38 +03:00

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@ceifa commented on GitHub (Sep 1, 2021):

30% CPU running version e6e3cfa from snap:

@erikc96 could you run a profiler on the app when it is using all that cpu to get an estimate of where that cpu time is going?

How do I do that?

<!-- gh-comment-id:910603331 --> @ceifa commented on GitHub (Sep 1, 2021): 30% CPU running version e6e3cfa from snap:  > @erikc96 could you run a profiler on the app when it is using all that cpu to get an estimate of where that cpu time is going? How do I do that?

kerem commented 2026-02-28 14:30:38 +03:00

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@jpochyla commented on GitHub (Sep 1, 2021):

@ceifa can you try the latest master? Ambient playback CPU usage should be much lower.

<!-- gh-comment-id:910673453 --> @jpochyla commented on GitHub (Sep 1, 2021): @ceifa can you try the latest master? Ambient playback CPU usage should be much lower.

kerem commented 2026-02-28 14:30:38 +03:00

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@ceifa commented on GitHub (Sep 1, 2021):

On current master version running the release mode:

But now "pulseaudio" takes a lot of CPU...

Running spotify:

<!-- gh-comment-id:910730937 --> @ceifa commented on GitHub (Sep 1, 2021): On current master version running the release mode:  But now "pulseaudio" takes a lot of CPU... Running spotify: 

kerem commented 2026-02-28 14:30:38 +03:00

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@pablodz commented on GitHub (Sep 1, 2021):

But now "pulseaudio" takes a lot of CPU...

Did you read about pipewire? it handles better CPU usage than pulseaudio.

<!-- gh-comment-id:910737490 --> @pablodz commented on GitHub (Sep 1, 2021): > But now "pulseaudio" takes a lot of CPU... Did you read about pipewire? it handles better CPU usage than pulseaudio.

kerem commented 2026-02-28 14:30:38 +03:00

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@ceifa commented on GitHub (Sep 6, 2021):

Did you read about pipewire? it handles better CPU usage than pulseaudio.

Never did, but I will take a look, thanks for the hint!

<!-- gh-comment-id:913805904 --> @ceifa commented on GitHub (Sep 6, 2021): > Did you read about pipewire? it handles better CPU usage than pulseaudio. Never did, but I will take a look, thanks for the hint!

kerem commented 2026-02-28 14:30:39 +03:00

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@pablodz commented on GitHub (Sep 8, 2021):

Did you read about pipewire? it handles better CPU usage than pulseaudio.

Never did, but I will take a look, thanks for the hint!

Yes, check the graph in p10 https://elinux.org/images/5/55/Pipewire-slides.pdf

<!-- gh-comment-id:915366452 --> @pablodz commented on GitHub (Sep 8, 2021): > > Did you read about pipewire? it handles better CPU usage than pulseaudio. > > Never did, but I will take a look, thanks for the hint! Yes, check the graph in p10 https://elinux.org/images/5/55/Pipewire-slides.pdf

kerem commented 2026-02-28 14:30:39 +03:00

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@jpochyla commented on GitHub (Sep 14, 2021):

High PulseAudio CPU usage is caused by the small buffer size we use now, will be solved when we switch to cpal for the audio output. Anyway that seems unrelated to the original issue, so let's close this, if you don't mind!

<!-- gh-comment-id:919278383 --> @jpochyla commented on GitHub (Sep 14, 2021): High PulseAudio CPU usage is caused by the small buffer size we use now, will be solved when we switch to `cpal` for the audio output. Anyway that seems unrelated to the original issue, so let's close this, if you don't mind!

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