On Thu, Aug 28, 2008 at 6:02 AM, TARUN CHAPLOT <tarunchaplot at yahoo.com>wrote: > Hi > I have followed the suggestions given by Benny and have tried http://trac.pjsip.org/repos/wiki/FAQ#cpu > > all the steps properly. Now I am getting the good voice quality when the > CPU utilization is about 80-90 % by pjsua. > When I run other application on openmoko freerunner the CPU utilization by > pjsua reduces to around 40% and the voice quality becomes very poor. > > 80-90% CPU utilization is really bad, I have strong feeling that something is not right with your settings. Can you list what exactly did you do with regard to the checklist in http://trac.pjsip.org/repos/wiki/FAQ#cpu? Also - make sure optimization is on (the gcc -O2 flag) - disable floating point (with --disable-floating-point in configure, or "#define PJ_HAS_FLOATING_POINT 0" in your config_site.h) Also have a look at the PJMEDIA performance measurement results in http://trac.pjsip.org/repos/wiki/PJMEDIA-MIPS, especially the ARM Linux and PocketPC sections. From this, you can see how various features in pjmedia affect the CPU usage. Few things to highlight from the results: - *never ever* use iLBC for devices (as it takes between 200-600 percent of CPU :D ) - resampling with large filter is expensive, don't do it. - AEC is expensive, use echo suppressor/ES instead (there is a big improvement in ES in the SVN trunk, see http://blog.pjsip.org/2008/08/15/new-low-complexity-echo-suppressor-for-mobile-devices/ ) - Speex is expensive Cheers Benny -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080828/c2e77fc8/attachment.html
