[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 #18 from Raymond <superquad.vortex2 at gmail.com> ---

not only hwptr not icrement by dma brust

the time elasped varies from 8 to 18 for one frame which is quite unstable



us-last_us=399781389341     now_us-start_us=27     time_us-start_us=18    
time_us-last_time=399781389332     time_us-start_time=7     Available: 13    
loop iteration: 0
now_us-last_us=24     now_us-start_us=51     time_us-start_us=45    
time_us-last_time=27     time_us-start_time=34     Available: 22     loop
iteration: 1
now_us-last_us=19     now_us-start_us=70     time_us-start_us=64    
time_us-last_time=19     time_us-start_time=53     Available: 29     loop
iteration: 2
now_us-last_us=18     now_us-start_us=88     time_us-start_us=82    
time_us-last_time=18     time_us-start_time=71     Available: 36     loop
iteration: 3
now_us-last_us=19     now_us-start_us=107     time_us-start_us=101    
time_us-last_time=19     time_us-start_time=90     Available: 43     loop
iteration: 4
now_us-last_us=18     now_us-start_us=125     time_us-start_us=119    
time_us-last_time=18     time_us-start_time=108     Available: 50     loop
iteration: 5
now_us-last_us=18     now_us-start_us=143     time_us-start_us=137    
time_us-last_time=18     time_us-start_time=126     Available: 57     loop
iteration: 6
now_us-last_us=17     now_us-start_us=160     time_us-start_us=154    
time_us-last_time=17     time_us-start_time=143     Available: 63     loop
iteration: 7
now_us-last_us=18     now_us-start_us=178     time_us-start_us=172    
time_us-last_time=18     time_us-start_time=161     Available: 70     loop
iteration: 8
now_us-last_us=18     now_us-start_us=196     time_us-start_us=190    
time_us-last_time=18     time_us-start_time=179     Available: 71     loop
iteration: 9
now_us-last_us=17     now_us-start_us=213     time_us-start_us=207    
time_us-last_time=17     time_us-start_time=196     Available: 72     loop
iteration: 10
now_us-last_us=18     now_us-start_us=231     time_us-start_us=225    
time_us-last_time=18     time_us-start_time=214     Available: 73     loop
iteration: 11
now_us-last_us=17     now_us-start_us=248     time_us-start_us=242    
time_us-last_time=17     time_us-start_time=231     Available: 74     loop
iteration: 12
now_us-last_us=18     now_us-start_us=266     time_us-start_us=260    
time_us-last_time=18     time_us-start_time=249     Available: 75     loop
iteration: 13
now_us-last_us=17     now_us-start_us=283     time_us-start_us=277    
time_us-last_time=17     time_us-start_time=266     Available: 76     loop
iteration: 14
now_us-last_us=9     now_us-start_us=309     time_us-start_us=304    
time_us-last_time=10     time_us-start_time=293     Available: 77     loop
iteration: 16
now_us-last_us=18     now_us-start_us=327     time_us-start_us=321    
time_us-last_time=17     time_us-start_time=310     Available: 78     loop
iteration: 17
now_us-last_us=9     now_us-start_us=354     time_us-start_us=349    
time_us-last_time=11     time_us-start_time=338     Available: 79     loop
iteration: 19
now_us-last_us=18     now_us-start_us=372     time_us-start_us=366    
time_us-last_time=17     time_us-start_time=355     Available: 80     loop
iteration: 20
now_us-last_us=17     now_us-start_us=389     time_us-start_us=383    
time_us-last_time=17     time_us-start_time=372     Available: 81     loop
iteration: 21
now_us-last_us=8     now_us-start_us=415     time_us-start_us=410    
time_us-last_time=9     time_us-start_time=399     Available: 82     loop
iteration: 23
now_us-last_us=18     now_us-start_us=433     time_us-start_us=427    
time_us-last_time=17     time_us-start_time=416     Available: 83     loop
iteration: 24
now_us-last_us=17     now_us-start_us=450     time_us-start_us=444    
time_us-last_time=17     time_us-start_time=433     Available: 84     loop
iteration: 25
now_us-last_us=9     now_us-start_us=477     time_us-start_us=471    
time_us-last_time=9     time_us-start_time=460     Available: 85     loop
iteration: 27
now_us-last_us=18     now_us-start_us=495     time_us-start_us=489    
time_us-last_time=18     time_us-start_time=478     Available: 86     loop
iteration: 28

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