Date: Sat, 23 Sep 2023 14:50:54 +0000 From: bugzilla-noreply@freebsd.org To: games@FreeBSD.org Subject: [Bug 274047] audio/alsa-plugins: large number of underruns and CPU usage with games/veloren-weekly Message-ID: <bug-274047-32059@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274047 Bug ID: 274047 Summary: audio/alsa-plugins: large number of underruns and CPU usage with games/veloren-weekly Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: Individual Port(s) Assignee: ports-bugs@FreeBSD.org Reporter: scf@FreeBSD.org CC: games@FreeBSD.org, jbeich@FreeBSD.org CC: games@FreeBSD.org, jbeich@FreeBSD.org I am uncertain which is at fault (or both), but I noticed that Veloren runs= at a high CPU with many ALSA underruns. It also caused visual and auditory stuttering. The CPU can be observed by running Veloren in a single world game then suspending it by opening the menu to remove game activities. On my system,= the CPU usage hovers around 70%. The process will output many of these messages: ALSA lib pcm.c:8526:(snd_pcm_recover) underrun occurred The underruns can be verified via /dev/sndstat with hw.snd.verbose=3D2. To reduce the CPU usage to below 10% (on my system again) and greatly reduce the underruns, I decreased the value of ALSA_OSS_BUFSZ_MAX in audio/alsa-plugins/files/patch-oss_pcm__oss.c from 131072 to 16384. 32768 appeared to be the maximum value that could be used without underruns. I am not sure if this is the best decision or not, but it fixed Veloren for= me. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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