Hey Maarten, with your test tool svolume-test, i get some new test results shows the patch has a positive performance improvement. please note i made some little change in svolume-test to disable "testing correctness" part, this save some time, the goal is to find out performance difference with fixed volume.
i made three times test, one with patch, two without(make sure system
stable during the test).
i paste piece of data here, details are in attached log.
Here's the stastics for format s16, channel 1~4, fixed volume, with patch:
====================
checking s16le - 1 channels - fixed volume
ref: 70.4 ms (min = 70.4, max = 71.4, stddev = 0.2)
asm: 2.9 ms (min = 2.9, max = 3.0, stddev = 0.0)
checking s16le - 2 channels - fixed volume
ref: 85.1 ms (min = 85.1, max = 85.7, stddev = 0.1)
asm: 5.9 ms (min = 5.9, max = 6.2, stddev = 0.1)
checking s16le - 3 channels - fixed volume
ref: 127.8 ms (min = 127.7, max = 128.6, stddev = 0.2)
asm: 8.9 ms (min = 8.9, max = 8.9, stddev = 0.0)
checking s16le - 4 channels - fixed volume
ref: 170.2 ms (min = 170.1, max = 170.9, stddev = 0.2)
asm: 11.8 ms (min = 11.8, max = 11.9, stddev = 0.0)
=====================
while same format/channel/fixed volume without patch:
=====================
checking s16le - 1 channels - fixed volume
ref: 70.4 ms (min = 70.4, max = 70.8, stddev = 0.1)
asm: 2.9 ms (min = 2.9, max = 3.0, stddev = 0.0)
checking s16le - 2 channels - fixed volume
ref: 141.0 ms (min = 140.9, max = 142.4, stddev = 0.3)
asm: 6.0 ms (min = 6.0, max = 6.1, stddev = 0.0)
checking s16le - 3 channels - fixed volume
ref: 213.7 ms (min = 213.5, max = 214.5, stddev = 0.2)
asm: 9.0 ms (min = 8.9, max = 9.3, stddev = 0.1)
checking s16le - 4 channels - fixed volume
ref: 286.5 ms (min = 285.5, max = 301.0, stddev = 2.6)
asm: 12.0 ms (min = 12.0, max = 12.3, stddev = 0.1)
==========================
please help review the results.
--xingchao
screenlog.1
Description: Binary data
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