Ticket #1729 (new defect)
pulseaudio consumes 6% cpu time constantly
Reported by: | lindi | Owned by: | openmoko-devel |
---|---|---|---|
Priority: | normal | Milestone: | |
Component: | unknown | Version: | |
Severity: | normal | Keywords: | |
Cc: | Blocked By: | ||
Blocking: | Estimated Completion (week): | ||
HasPatchForReview: | PatchReviewResult: | ||
Reproducible: |
Description
Steps to reproduce:
1) boot the system
Expected results:
1) system should be mostly idle
Actual results:
1) pulseaudio consumes 6% cpu time according to top.
More info:
1) I am using
on freerunner.
2) strace -p pidof pulseaudio -f -o /tmp/s -s245 -tt shows the following patterns:
1381 22:15:42.054924 SYS_298(0x8001, 0x411d3cfc, 0x2, 0x1000, 0x3952634c) = 0 1381 22:15:42.058088 SYS_298(0x8001, 0x411d3d62, 0x1, 0x1800, 0x4ccc8) = 0 1381 22:15:42.059321 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.061548 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.062966 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.064297 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.065431 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.066598 SYS_298(0x8001, 0x411d3cfc, 0x2, 0x1000, 0x39527000) = 0 1381 22:15:42.071400 SYS_298(0x8001, 0x411d3d62, 0x1, 0x1800, 0x4ccc8) = 0 1381 22:15:42.072529 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.073744 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.075161 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.076298 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.077434 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.078697 SYS_298(0x8001, 0x411d3cfc, 0x2, 0x1000, 0x39528000) = 0 1381 22:15:42.083701 SYS_298(0x8001, 0x411d3d62, 0x1, 0x1800, 0x4ccc8) = 0 1381 22:15:42.084831 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.086077 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.087488 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.088713 ioctl(17, 0xc0844123, 0x4e668) = 0 1381 22:15:42.091026 ioctl(17, 0xc0844123, 0x4e668) = 0
and
# ls -l /proc/1381/fd/17 lrwx------ 1 root root 64 Aug 2 22:16 /proc/1381/fd/17 -> /dev/snd/pcmC0D0p
shows that it is really talking to the sound card.
Change History
comment:2 Changed 11 years ago by lindi
Installing pulseaudio-module-suspend-on-idle_0.9.10-r4_armv4t.ipk and adding
load-module module-suspend-on-idle
to /etc/pulse/session seems to solve this. Is there any chance you could make this default?
comment:3 Changed 10 years ago by RuiSeabra
root@om-gta02:/etc/wpa_supplicant# ps axfuw | grep 1374 root 1374 10.6 2.3 16732 2972 ? S<Lsl 13:28 4:23 /usr/bin/pulseaudio --no-cpu-limit --resample-method=trivial -D -nF /etc/pulse/session root@om-gta02:/etc/wpa_supplicant# strace -c -p 1374 Process 1374 attached - interrupt to quit Process 1374 detached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 99.52 21.367374 55356 386 poll 0.25 0.053164 34 1542 gettimeofday 0.23 0.050000 50000 1 restart_syscall ------ ----------- ----------- --------- --------- ---------------- 100.00 21.470538 1929 total
I don't seem to have that module installed.
comment:4 Changed 21 months ago by Chassmetly
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Confirmed here on the same image AND after a opkg upgrade: