Re: [PATCH] ALSA: pcm: Add xrun counter for snd_pcm_substream
From: Takashi Iwai
Date: Sat Aug 10 2024 - 04:41:03 EST
On Fri, 09 Aug 2024 16:06:45 +0200,
Norman Bintang wrote:
>
> 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@xxxxxxxxxxxx>
> Reviewed-by: Chih-Yang Hsia <paulhsia@xxxxxxxxxxxx>
> Tested-by: Chih-Yang Hsia <paulhsia@xxxxxxxxxxxx>
> Reviewed-by: David Riley <davidriley@xxxxxxxxxxxx>
Applied to for-next branch. Thanks.
Takashi