[pulseaudio-tickets] [Bug 84878] protocol-native: I get endless underruns when I playback when alsa buffer size is small

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84878

--- Comment #15 from Raymond <superquad.vortex2 at gmail.com> ---
(In reply to Alban Browaeys from comment #13)
> Created attachment 112916 [details]
> pcm_avail.c results : results from DESCRIPTOR mode

buffer_size  : 4096
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 1024
  period_event : 0
  start_threshold  : 1024
  stop_threshold   : 4096
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
Playing silence
now_us-last_us=140370086     now_us-start_us=23     time_us-start_us=14    
time_us-last_time=140370077     time_us-start_time=5     Available: 0     loop
iteration: 0
now_us-last_us=20732     now_us-start_us=25674     time_us-start_us=25666    
time_us-last_time=20728     time_us-start_time=25657     Available: 1024    
loop iteration: 769
now_us-last_us=13     now_us-start_us=67428     time_us-start_us=67421    
time_us-last_time=32481     time_us-start_time=67412     Available: 3072    
loop iteration: 222


avail should be increment by period size , it is strange that 2048 not in your
result



http://www.alsa-project.org/main/index.php/XRUN_Debug

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