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| author | Norman Bintang <normanbt@chromium.org> | 2024-08-09 16:06:45 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-08-10 10:40:58 +0200 |
| commit | 72c0f57dbe8bf625108dc67e34f3472f28501776 (patch) | |
| tree | 020977d7bb88c4e3d5f2976a016546593405bd97 /Documentation/scheduler | |
| parent | ALSA: usb-audio: Add input gain and master output mixer elements for RME Baby... (diff) | |
| download | linux-72c0f57dbe8bf625108dc67e34f3472f28501776.tar.xz linux-72c0f57dbe8bf625108dc67e34f3472f28501776.zip | |
ALSA: pcm: Add xrun counter for snd_pcm_substream
This patch adds an xrun counter to snd_pcm_substream as an alternative
to using logs from XRUN_DEBUG_BASIC. The counter provides a way to track
the number of xrun occurences, accessible through the /proc interface.
The counter is enabled when CONFIG_SND_PCM_XRUN_DEBUG is set.
Example output:
$ cat /proc/asound/card0/pcm9p/sub0/status
owner_pid : 1425
trigger_time: 235.248957291
tstamp : 0.000000000
delay : 1912
avail : 480
avail_max : 1920
-----
hw_ptr : 672000
appl_ptr : 673440
xrun_counter: 3 # (new row)
Signed-off-by: Norman Bintang <normanbt@chromium.org>
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: Chih-Yang Hsia <paulhsia@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
Link: https://patch.msgid.link/20240809140648.3414349-1-normanbt@chromium.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/scheduler')
0 files changed, 0 insertions, 0 deletions