On a OnePlus6 running Mobian I get pipewire using 4 CPU cores which
results in the phone being hot to the touch and having it's battery
drain fast.  This only happened after updating to the latest Testing
packages and rebooting.

I have rebooted this a second time and had the same issue reoccur.

The following is from "journalctl -f" when pipewire is taking excessive
CPU time:

Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:08:58 op6b pipewire[1465]: spa.alsa: hw:0,6p: snd_pcm_start: Broken pipe
Jan 16 02:09:00 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (56233 suppressed)
Jan 16 02:09:00 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:1/2 s:12763384783239 a:12763384831783 f:12763384862514 waiting:48544 process:30731 status:triggered
Jan 16 02:09:00 op6b pipewire[1465]: pw.node: (-245) xrun state:0xffff85473008 pending:0/1 s:12763384831783 a:12763384894391 f:12763384861264 waiting:62608 process:18446744073709518489 status:awake
Jan 16 02:09:01 op6b kernel: q6asm-dai remoteproc-adsp:glink-edge:apr:service@7:dais: Audio Client already active
Jan 16 02:09:02 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (53355 suppressed)
Jan 16 02:09:02 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:0/2 s:12765384834806 a:12765384883142 f:12765384913404 waiting:48336 process:30262 status:triggered
Jan 16 02:09:04 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (59039 suppressed)
Jan 16 02:09:04 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:0/2 s:12767384854186 a:12767384902678 f:12767384933201 waiting:48492 process:30523 status:triggered
Jan 16 02:09:05 op6b pipewire-pulse[1468]: mod.protocol-pulse: 0xaaab15108e60: [] underrun read:541836512 avail:0
Jan 16 02:09:06 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (59705 suppressed)
Jan 16 02:09:06 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:1/2 s:12769384887529 a:12769384935917 f:12769384966492 waiting:48388 process:30575 status:triggered
Jan 16 02:09:06 op6b pipewire[1465]: pw.node: (-245) xrun state:0xffff85473008 pending:0/1 s:12769384935917 a:12769385001181 f:12769384964877 waiting:65264 process:18446744073709515312 status:awake
Jan 16 02:09:06 op6b kernel: q6asm-dai remoteproc-adsp:glink-edge:apr:service@7:dais: Audio Client already active
Jan 16 02:09:08 op6b pipewire-pulse[1468]: mod.protocol-pulse: 0xaaab15108e60: [] underrun read:541938208 avail:0
Jan 16 02:09:08 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (58625 suppressed)
Jan 16 02:09:08 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:0/2 s:12771384942076 a:12771384985984 f:12771385021768 waiting:43908 process:35784 status:triggered
Jan 16 02:09:10 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) graph xrun not-triggered (59428 suppressed)
Jan 16 02:09:10 op6b pipewire[1465]: pw.node: (alsa_output.platform-sound.pro-output-6-58) xrun state:0xffff85a14008 pending:1/2 s:12773384953188 a:12773384999076 f:12773385037984 waiting:45888 process:38908 status:triggered
Jan 16 02:09:10 op6b pipewire[1465]: pw.node: (-245) xrun state:0xffff85473008 pending:0/1 s:12773384999076 a:12773385060641 f:12773385023660 waiting:61565 process:18446744073709514635 status:awake
Jan 16 02:09:11 op6b kernel: q6asm-dai remoteproc-adsp:glink-edge:apr:service@7:dais: Audio Client already active

Here is the top output:

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
   1468 mobian    20   0  225632  42388   7504 R  90.8   0.5 190:14.74 pipewire-pulse
   1465 mobian    20   0  204756  36556   7596 S  80.2   0.5 167:57.19 pipewire
   1776 mobian    20   0 4972908 406588 200144 R  36.6   5.3  77:47.03 plasmashell
    317 root      20   0  385568 257832 256936 S  30.4   3.3  66:01.54 systemd-journal

I currently can't reproduce the situation of taking more than 1 CPU core.  I
didn't do anything differently, just rebooted it a day later and got different
results.

Now I'm seeing the following, not a huge amount of CPU time, but more than
expected from an idle system with the screen locked and nothing happening.

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
   1913 mobian    20   0 5447112 410056 196544 S   2.0   5.3   0:24.27
plasmashell
   1537 mobian    20   0  106568  10732   6916 S   1.3   0.1   0:07.15
pipewire
   1544 mobian    20   0  186116  17092   7492 S   1.3   0.2   0:07.00
pipewire-pulse

root@op6a:~# strace -p 1537
strace: Process 1537 attached
epoll_pwait(5,

The pipewire process is waiting, how can it be using CPU time?

root@op6a:~# strace -p 1544 2>&1|head
strace: Process 1544 attached
epoll_pwait(4, [{events=EPOLLIN, data={u32=201999296, u64=187651618128832}}],
32, -1, NULL, 8) = 1
read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLOUT, data={u32=205036208, u64=187651621165744}}],
32, -1, NULL, 8) = 1
sendto(44, "\0\0\0\4\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0", 20, MSG_DONTWAIT|
MSG_NOSIGNAL, NULL, 0) = 20
sendto(44, "\0\0\0\0", 4, MSG_DONTWAIT|MSG_NOSIGNAL, NULL, 0) = 4
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLIN, data={u32=201999296, u64=187651618128832}}],
32, -1, NULL, 8) = 1
read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
root@op6a:~# strace -p 1544 2>&1|head -20
strace: Process 1544 attached
epoll_pwait(4, [{events=EPOLLIN, data={u32=201999296, u64=187651618128832}}],
32, -1, NULL, 8) = 1
read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLOUT, data={u32=205036208, u64=187651621165744}}],
32, -1, NULL, 8) = 1
sendto(44, "\0\0\0\4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20, MSG_DONTWAIT|
MSG_NOSIGNAL, NULL, 0) = 20
sendto(44, "\0\0\0\0", 4, MSG_DONTWAIT|MSG_NOSIGNAL, NULL, 0) = 4
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLIN, data={u32=201999296, u64=187651618128832}}],
32, -1, NULL, 8) = 1
read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLOUT, data={u32=205036208, u64=187651621165744}}],
32, -1, NULL, 8) = 1
sendto(44, "\0\0\0\4\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0", 20, MSG_DONTWAIT|
MSG_NOSIGNAL, NULL, 0) = 20
sendto(44, "\0\0\0\0", 4, MSG_DONTWAIT|MSG_NOSIGNAL, NULL, 0) = 4
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLIN, data={u32=201999296, u64=187651618128832}}],
32, -1, NULL, 8) = 1
read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
epoll_ctl(4, EPOLL_CTL_MOD, 44, {events=EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP,
data={u32=205036208, u64=187651621165744}}) = 0
epoll_pwait(4, [{events=EPOLLOUT, data={u32=205036208, u64=187651621165744}}],
32, -1, NULL, 8) = 1
sendto(44, "\0\0\0\4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20, MSG_DONTWAIT|
MSG_NOSIGNAL, NULL, 0) = 20
root@op6a:~# ls -l /proc/1544/fd/5
lrwx------ 1 mobian mobian 64 Jan 17 00:08 /proc/1544/fd/5 -> 'anon_inode:
[eventfd]'
root@op6a:~# ls -l /proc/1544/fd/44
lrwx------ 1 mobian mobian 64 Jan 17 00:02 /proc/1544/fd/44 -> 'socket:
[18425]'

The pipewire-pulse program is looking on an eventfd and writing to a socket in
a fairly tight loop.

As for plasmashell, what it does is more complex and I'm not sure if it's
connected to the pipewire CPU use.

For desktop use probably most people would be happy to let these processes use
1% CPU time each for as long as the system is used.  For even a laptop this
probably isn't a problem.  But for a phone it's a real problem.

I've had the same problem again on that phone but not had it happen on my
other OP6.  So I think that there may be a hardware issue causing the kernel
issue.

But I still believe that there is a bug in pipewire.  In spite of the kernel
misbehaving the daemon should still be able to act in a reasonable manner -
which may mean just refusing to use the sound hardware in question.

happens sometimes. I haven't figured out what the trigger is/could be.

I have a Pine64 Quartz64 Model A, which is my headless 'build server'
and some days ago I noticed a high CPU usage too. This didn't make any
sense to me is there is nothing audio related connected to the device.

Looking at htop showed me that next to pipewire, there was this:
``/usr/bin/fluidsynth -is /usr/share/sounds/sf3/default-GM.sf3``

When I restarted pipewire, things seemed to have normalized a bit, but
not completely (subjectively).

```sh
diederik@quartz64a:~$ journalctl -b 0 --user -u pipewire.service
mrt 11 12:45:50 quartz64a systemd[993]: Started pipewire.service - PipeWire Multimedia Service.
mrt 11 12:45:51 quartz64a pipewire[1013]: spa.alsa: open failed: Invalid argument

diederik@quartz64a:~$ systemctl --user status pipewire.service
● pipewire.service - PipeWire Multimedia Service
     Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; preset: enabled)
     Active: active (running) since Tue 2025-03-11 12:45:50 CET; 4min 45s ago
 Invocation: 79933b8ba5434c239a437604b11fd0bd
TriggeredBy: ● pipewire.socket
   Main PID: 1013 (pipewire)
      Tasks: 3 (limit: 9098)
     Memory: 7M (peak: 8.7M)
        CPU: 1min 15.149s
     CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pipewire.service
             └─1013 /usr/bin/pipewire

mrt 11 12:45:50 quartz64a systemd[993]: Started pipewire.service - PipeWire Multimedia Service.
mrt 11 12:45:51 quartz64a pipewire[1013]: spa.alsa: open failed: Invalid argument
diederik@quartz64a:~$ wpctl status
PipeWire 'pipewire-0' [1.4.0, diederik@quartz64a, cookie:2787891504]
 └─ Clients:
        33. WirePlumber                         [1.4.0, diederik@quartz64a, pid:1019]
        34. pipewire                            [1.4.0, diederik@quartz64a, pid:1021]
        35. PipeWire ALSA [fluidsynth]          [1.4.0, diederik@quartz64a, pid:1017]
        47. WirePlumber [export]                [1.4.0, diederik@quartz64a, pid:1019]
        73. wpctl                               [1.4.0, diederik@quartz64a, pid:1150]

Audio
 ├─ Devices:
 │      48. Built-in Audio                      [alsa]
 │      49. Built-in Audio                      [alsa]
 │      50. Built-in Audio                      [alsa]
 │
 ├─ Sinks:
 │      44. Built-in Audio Stereo               [vol: 0.40]
 │  *   54. Built-in Audio Stereo               [vol: 0.40]
 │      55. Built-in Audio Stereo               [vol: 0.40]
 │
 ├─ Sources:
 │  *   56. Built-in Audio Stereo               [vol: 1.00]
 │
 ├─ Filters:
 │
 └─ Streams:
        46. PipeWire ALSA [fluidsynth]
             69. output_FL       > fe400000.i2s-i2s-hifi i2s-hifi-0:playback_FL [active]
             70. output_FR       > fe400000.i2s-i2s-hifi i2s-hifi-0:playback_FR [active]

Video
 ├─ Devices:
 │      51. rockchip,rk3568-vpu-dec             [v4l2]
 │      52. rockchip-rga                        [v4l2]
 │      53. rockchip,rk3568-vepu-enc            [v4l2]
 │
 ├─ Sinks:
 │
 ├─ Sources:
 │
 ├─ Filters:
 │
 └─ Streams:

Settings
 └─ Default Configured Devices:
```

It's a mystery to me why there is a fluidsynth stream ...
I'm still not sure whether this is a pipewire or a fluidsynth bug, but
there is https://bugs.debian.org/1075976 which seems similar/related.

Looking a bit further wrt "spa.alsa" reported by systemctl and found:

```sh
diederik@quartz64a:~$ journalctl --user -u pipewire.service
... [mostly fine, but with older pipewire versions ... ]
sep 12 16:29:48 quartz64a systemd[909]: Started pipewire.service - PipeWire Multimedia Service.
sep 12 16:29:49 quartz64a pipewire[926]: spa.alsa: 'hw:1,0': playback open failed: Invalid argument
sep 12 16:29:49 quartz64a pipewire[926]: mod.adapter: 0xaaab1e890e80: can't get format: Invalid argument
sep 12 16:29:49 quartz64a pipewire[926]: mod.adapter: usage: node.name=<string>
sep 12 16:29:49 quartz64a pipewire[926]: spa.alsa: 'hw:1,0': capture open failed: Invalid argument
sep 12 16:29:49 quartz64a pipewire[926]: mod.adapter: 0xaaab1e890e80: can't get format: Invalid argument
sep 12 16:29:49 quartz64a pipewire[926]: mod.adapter: usage: node.name=<string>
sep 12 16:30:27 quartz64a systemd[909]: Stopping pipewire.service - PipeWire Multimedia Service...
sep 12 16:30:27 quartz64a systemd[909]: Stopped pipewire.service - PipeWire Multimedia Service.
...
okt 23 22:41:09 quartz64a systemd[1051]: Started pipewire.service - PipeWire Multimedia Service.
okt 23 22:41:10 quartz64a pipewire[1068]: spa.alsa: 'hw:0,0': playback open failed: Invalid argument
okt 23 22:41:10 quartz64a pipewire[1068]: mod.adapter: 0xaaaaedb8dd00: can't get format: Invalid argument
okt 23 22:41:10 quartz64a pipewire[1068]: mod.adapter: usage: node.name=<string>
nov 01 19:48:31 quartz64a systemd[1051]: Stopping pipewire.service - PipeWire Multimedia Service...
nov 01 19:48:31 quartz64a systemd[1051]: Stopped pipewire.service - PipeWire Multimedia Service.
```

Dunno what to make of that though.

I also found a LOT of "graph xrun not-triggered (N suppressed)":

```sh
root@quartz64a:~# journalctl -b -1 | grep pipewire
Mar 08 10:08:30 quartz64a systemd[1000]: Listening on pipewire-pulse.socket - PipeWire PulseAudio.
Mar 08 10:08:30 quartz64a systemd[1000]: Listening on pipewire.socket - PipeWire Multimedia System Sockets.
Mar 08 10:08:30 quartz64a systemd[1000]: Started pipewire.service - PipeWire Multimedia Service.
Mar 08 10:08:31 quartz64a systemd[1000]: Started pipewire-pulse.service - PipeWire PulseAudio.
Mar 08 10:08:31 quartz64a dbus-daemon[609]: [system] Activating via systemd: service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service' requested by ':1.7' (uid=1000 pid=1020 comm="/usr/bin/pipewire")
Mar 08 10:08:33 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (0 suppressed)
Mar 08 10:08:33 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:86430890920 a:86431848198 f:86432103415 waiting:957278 process:255217 status:triggered
Mar 08 10:08:38 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (0 suppressed)
Mar 08 10:08:38 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:91966752344 a:91967108772 f:91967857503 waiting:356428 process:748731 status:triggered
Mar 08 10:09:50 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (0 suppressed)
Mar 08 10:09:50 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:163784341467 a:163784643060 f:163784702853 waiting:301593 process:59793 status:triggered
Mar 08 10:09:50 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:163785732759 a:163784394844 f:163784529014 waiting:18446744073708213701 process:134170 status:triggered
Mar 08 10:09:54 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (368 suppressed)
Mar 08 10:09:54 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:167995377007 a:167998332555 f:167998422392 waiting:2955548 process:89837 status:triggered
Mar 08 10:10:32 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (14 suppressed)
Mar 08 10:10:32 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:205463660932 a:205463771769 f:205463793061 waiting:110837 process:21292 status:triggered
Mar 08 10:10:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (20 suppressed)
Mar 08 10:10:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:225416295819 a:225420491281 f:225420522782 waiting:4195462 process:31501 status:triggered
Mar 08 10:14:21 quartz64a pipewire[1020]: spa.alsa: hw:2p: (0 suppressed) snd_pcm_avail after recover: Broken pipe
Mar 08 10:17:43 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (5 suppressed)
Mar 08 10:17:43 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:636695298581 a:636695722386 f:636695795013 waiting:423805 process:72627 status:triggered
Mar 08 10:17:43 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:636696714375 a:636695420210 f:636695609799 waiting:18446744073708257451 process:189589 status:triggered
Mar 08 12:46:00 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (0 suppressed)
Mar 08 12:46:00 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:9533530626408 a:9533530805497 f:9533530836998 waiting:179089 process:31501 status:triggered
Mar 08 12:46:00 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:9533532153331 a:9533530674534 f:9533530772538 waiting:18446744073708072819 process:98004 status:triggered

[ literally 100s of similar lines omitted ... ]

Mar 10 21:08:15 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (13 suppressed)
Mar 10 21:08:15 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212468537262565 a:212468540158025 f:212468540230360 waiting:2895460 process:72335 status:triggered
Mar 10 21:08:42 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (5 suppressed)
Mar 10 21:08:42 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212495552177236 a:212495552459286 f:212495552507121 waiting:282050 process:47835 status:triggered
Mar 10 21:08:44 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (78 suppressed)
Mar 10 21:08:44 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212497680193160 a:212497680464710 f:212497680510794 waiting:271550 process:46084 status:triggered
Mar 10 21:08:44 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:212497681574534 a:212497680282996 f:212497680425917 waiting:18446744073708260078 process:142921 status:triggered
Mar 10 21:08:48 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (167 suppressed)
Mar 10 21:08:48 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212501707679144 a:212501707909275 f:212501707962360 waiting:230131 process:53085 status:triggered
Mar 10 21:08:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (73 suppressed)
Mar 10 21:08:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212505835821471 a:212505836105563 f:212505836154272 waiting:284092 process:48709 status:triggered
Mar 10 21:08:52 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:212505837197595 a:212505835892931 f:212505836068520 waiting:18446744073708246952 process:175589 status:triggered
Mar 10 21:09:01 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (77 suppressed)
Mar 10 21:09:01 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212514361609096 a:212514361891437 f:212514361946564 waiting:282341 process:55127 status:triggered
Mar 10 21:09:07 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (95 suppressed)
Mar 10 21:09:07 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212520428274030 a:212520428625791 f:212520428679750 waiting:351761 process:53959 status:triggered
Mar 10 21:09:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (54 suppressed)
Mar 10 21:09:52 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212565347821223 a:212565348276237 f:212565348336030 waiting:455014 process:59793 status:triggered
Mar 10 21:09:52 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:212565349436229 a:212565348081106 f:212565348227235 waiting:18446744073708196493 process:146129 status:triggered
Mar 10 21:10:26 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (126 suppressed)
Mar 10 21:10:26 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212600195466744 a:212600195749377 f:212600195808587 waiting:282633 process:59210 status:triggered
Mar 10 21:10:55 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (143 suppressed)
Mar 10 21:10:55 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212628640486448 a:212628640788332 f:212628640838208 waiting:301884 process:49876 status:triggered
Mar 10 21:10:55 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:212628644593528 a:212628640559658 f:212628640715705 waiting:18446744073705517746 process:156047 status:triggered
Mar 10 21:11:21 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (161 suppressed)
Mar 10 21:11:21 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:1/2 s:212655079817967 a:212655080195103 f:212655080246146 waiting:377136 process:51043 status:triggered
Mar 10 21:11:21 quartz64a pipewire[1020]: pw.node: (alsa_playback.fluidsynth-58) xrun state:0xffff962d9008 pending:0/1 s:212655081216842 a:212655079900219 f:212655080125684 waiting:18446744073708234993 process:225465 status:triggered
Mar 10 21:11:39 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (103 suppressed)
Mar 10 21:11:39 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:212673252574232 a:212673252846949 f:212673252898575 waiting:272717 process:51626 status:triggered
Mar 10 22:01:11 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) graph xrun not-triggered (0 suppressed)
Mar 10 22:01:11 quartz64a pipewire[1020]: pw.node: (alsa_output.platform-hdmi-sound.stereo-fallback-57) xrun state:0xffff962dc008 pending:0/2 s:215644519303386 a:215644519725732 f:215644519812944 waiting:422346 process:87212 status:triggered
Mar 10 22:15:58 quartz64a wireplumber[1025]: wireplumber: disconnected from pipewire
Mar 10 22:15:58 quartz64a pipewire[1020]: spa.filter-graph: filter.graph must be an object
Mar 10 22:15:58 quartz64a pipewire[1020]: spa.filter-graph: can't load graph: Invalid argument
Mar 10 22:15:58 quartz64a pipewire[1020]: spa.audioconvert: Can't load filter-graph 0: Operation not supported
Mar 10 22:15:58 quartz64a systemd[1000]: Stopping pipewire.service - PipeWire Multimedia Service...
Mar 10 22:15:58 quartz64a systemd[1000]: Stopped pipewire.service - PipeWire Multimedia Service.
Mar 10 22:15:58 quartz64a systemd[1000]: pipewire.service: Consumed 14h 28min 35.281s CPU time, 8.4M memory peak.
Mar 10 22:15:58 quartz64a systemd[1000]: Started pipewire.service - PipeWire Multimedia Service.
Mar 10 22:15:59 quartz64a pipewire[581841]: spa.alsa: open failed: Invalid argument
```

I don't know if this will actually help towards a resolution, but
1. You're not the only one
2. There is something going on which doesn't look good, although I have
   no idea how/what/why/etc

Cheers,
  Diederik

Dear Maintainer,

Imma be real I don't know much about this bug reporting system but I figured an improperly formatted bug report was better than none.

I have a similar issue on a laptop. Since a recent update, my computer has been running super hot, and I noticed that pipewire is constantly using 6.2% CPU no matter what.

The only thing that gets my goshdarn fan to shut up for a second is sudo killall pipewire (or the gui equivalent).

Love Ya,
Alexander