[pulseaudio-discuss] [PATCH RFCv3 00/51] optimizations

Peter Meerwald pmeerw at pmeerw.net
Wed Nov 5 02:37:45 PST 2014


Hi,

> > > preliminary benchmarking on Intel i5-2400S, 64-bit, Linux 3.13:
> > >
> > > running 'paplay --latency-msec=10 stereo_48KHz.wav', output on internal
> > > soundcard (Intel HDA), measuring the maximum CPU% in top for the pulseaudio
> > > and paplay
> > >
> > > code             flags          PA       paplay
> > > master 6d1fd4d1  -O2            < 14.0%  < 3.7%
> > > master 6d1fd4d1  -O2 -DNDEBUG   < 13.3%  < 3.3%
> > > proposed v3      -O2             < 8.3%  < 1.3%
> > > proposed v3      -O2 -DNDEBUG    < 7.6%  < 1.3%

same benchmark, with 'paplay --latency-msec=20 stereo_32KHz.wav' on a 
beagleboard-XM (ARMv7, Cortex-A8, 1 GHz), 32-bit, Linux 3.7 output to 
TWL4030 codec:

code             flags          PA       paplay
master 6d1fd4d1  -O2 -DNDEBUG   < 21.2%  < 6.0%
proposed v3      -O2 -DNDEBUG    < 7.8%  < 1.6%

p.

-- 

Peter Meerwald
+43-664-2444418 (mobile)


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