> > I tried using a smaller period_size (about 1/16 of hwbuf_size), snd_pcm_avail returned a better value. Period bytes = 2Kbytes which is still larger than the default rewind_safeguard 512 bytes > But cpu usage moved from 1% to 4%, since we are using it in a automotive, we don`t care about power saving, I think it is acceptable. > > But I`m not sure if there is any other down side about "time based scheduling" ? > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20150609/26ac9ac8/attachment.html>