>From my experience which is also on an ARM 9 processor and high CPU utilization, the problem were fixed by changing codec to PCMU and set default clock to 8000(add "#define PJSUA_DEFAULT_CLOCK_RATE (8000)" at config_site.h) FC On Wed, Jun 11, 2008 at 19:28, C?sar Davi <cesargxn at gmail.com> wrote: > Hi Benny, > > I'm using the EDB9302A board (cirrus logic), features: > > - ARM 9 processor - EP9302 - running at 200Mhz; > - 64MByte SDRAM; > - 16MByte NOR Flash Memory. > > Thanks for your help. > > Cesar > > 2008/6/10 Benny Prijono <bennylp at pjsip.org>: >> On Tue, Jun 10, 2008 at 10:19 PM, C?sar Davi <cesargxn at gmail.com> wrote: >>> Hi All, >>> >>> >>> I'm developing an application to run in an ARM platform using embedded linux. >>> I've cross-compiled it using pjsip 0.8.0 and arm-linux-gcc. I've >>> downloaded the demo file >>> (pjproject-0.8.0_arm/pjproject-0.8.0/pjsip-apps/bin/samples/siprtp-arm-linux-gnu >>> ) to the target board using the >>> option for 8 SIP calling: >>> >>> siprtp-arm-linux-gnu -c 8 >>> >>> The busybox TOP command has shown there were 12 threads and one of >>> them was consuming 86% of CPU processing power (8 >>> simultaneous call without audio, just SIP signalling). >>> >> >> Actually although there is no audio, siprtp sample application does >> send and receive RTP packets. So it's not totally idle on the media >> side at all. >> >>> Is this high CPU consumption normal? >> >> Yeah it looks high. What ARM is that? > > >> >>> Is there a way to decrease it? >>> How can I optimize my app? >>> Is this 12 threads quantity normal for 8 SIP calling? >>> >> >> In pjsip the number of threads (0-N) is chosen by application, and in >> siprtp it happens that it uses one thread per call. As Tanguy pointed >> out in the other mail, the link to the FAQ contains lots of switches >> to enhance performance, please try that out. >> >> Cheers >> Benny >> >>> Thanks in advance >>> >>> Cesar >>> >> > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >
