[pulseaudio-discuss] High CPU Usage in System Mode

Manuel Amador (Rudd-O) rudd-o at rudd-o.com
Tue Jul 7 18:56:09 UTC 2020

On 01/07/2020 18.32, jtharkey wrote:
> In the source I found this in daemon/main.c:
> if (conf->system_instance && !conf->disable_shm) {
>         pa_log_notice(_("Running in system mode, forcibly disabling
> SHM mode."));
>         conf->disable_shm = true;
>     }
> I commented that out and built it, things seemed to work and work
> faster. Will commenting that out have some side effect I'm not aware of?

Yes, SHM mode is not safe when multiple users are using it.  SHM will
give you more performance but hostile users may compromise your
PulseAudio daemon.


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