hi,
as i use squeezelite to convert/upsample DSD/DSF files to 176.4kHz I
noticed that since squeezelite become multithreaded my CPU load is about
30% on average on all 4 cores (Core i3-2125, 2 cores/4 with HT) during
most of the time when playing DSF files. top and htop commands show
pretty consistent 25-30% CPU utilisation on all cores during playback.
System utilisation is about 0.37, 0.30, 0.29 (three top figures) .
When playing usual FLAC files that need no conversion load is 1-5% (no
matter what the resolution/samplerate is).... As I have not spotted that
before I switched back to squeezelite 1.6-dev which did not have soxr
multithreading and during DSD/DSF playback cpu spikes to 60-70% briefly
(only on one of the cores) and then goes back to few % .... and top and
htop show average 0.05 to 0.07 system load.
Therefore it is either my specific config or squeezelite multithreaded
soxr version causes much much higher CPU consumption on intel (as
opposed to non-multithreaded version) ... i actually expected to see
'spike' when soxr kicks in spread on 2 or 4 cores and see 15-20% per
core for a while but it seems its persistant load.
Am runnning fedora 20, squeezebox server and squeezelite running on same
piece of HW. 8GB ram and USB DAC. ... i think there WAS an optio ('z'
under upsampling) that disappeared so i can not try same version of
squeezelite with different parametars.
Could someone else check it out ?
thanks !
Gaha
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