Thanks very match nanang. > Date: Mon, 23 Mar 2009 19:04:22 +0700 > From: nanang@xxxxxxxxx > To: pjsip at lists.pjsip.org > Subject: Re: Power consumption > > Hi, > > Cool, that was a good test, thanks for sharing. > > Regarding the nokia forum wiki, we've also just found this wiki few > weeks ago, however we haven't tried this. Moreover, it seems that the > wiki talks about a 'real' VoIP activity, i.e: intensively sending & > receiving voice/video packets, while your test seems about 'connecting > only' to access point without such intensive activity. So, it's rather > a different context. > > However, it would be great if you would like to do some more tests > based on the wiki, to compare power consumption of a voice call > between with and without 'wiki patch'. You could apply the patch to > function pj_sock_socket() in file pjlib/src/pj/sock_symbian.cpp, e.g: > after rSock.Open, put 'the patch' > rSock.SetOpt( KSoIpTOS, KProtocolInetIp, 0xE0 ); > > Btw, please also notice (the last part of the wiki): U-APSD power save > scheme will be enabled, provided that it is supported also by the WLAN > access point. > > Regards, > nanang > > > On Sun, Mar 22, 2009 at 8:01 PM, mohamed hassan <e-mohhassan at hotmail.com> wrote: > > hi benny and all, > > > > Still work in power consumption problem , analysis and tests of this problem > > (tests used Digital Multi meter MS8218 to collect reading for power > > consumption in mobile Nokia N73), results: > > > > - WCDMA standby (battery life time 8 days). > > > > - Connect access point by simple application (battery life time 3 > > days). > > > > - PJSIP demo GUI connect access point only (not register) (battery > > life time 3 days). > > > > > > > > This result means connect of access point consumption 5 days, Nokia suggest > > solution of power consumption by access point in VOIP application see : > > > > http://wiki.forum.nokia.com/index.php/TSS000650_-_Increasing_WLAN_power_efficiency_for_full-duplex_VoIP_and_Video_applications > > > > Question: how to apply this solution in PJSIP library? > > > > Thank very match. > > > > ________________________________ > > From: e-mohhassan@xxxxxxxxxxx > > To: pjsip at lists.pjsip.org > > Date: Tue, 24 Feb 2009 08:07:34 +0000 > > Subject: Re: Power consumption > > > > Thanks for benny, and L'm try to resolve this problem. > > > > ________________________________ > > Date: Tue, 24 Feb 2009 07:41:51 +0000 > > From: bennylp@xxxxxxxxx > > To: pjsip at lists.pjsip.org > > Subject: Re: Power consumption > > > > On Tue, Feb 24, 2009 at 6:43 AM, mohamed hassan <e-mohhassan at hotmail.com> > > wrote: > > > > Hi all, > > I'm working in development VOIP project but I'm found big problem, end > > battry quickly in N73 (3hours) mobile and project during test not send and > > recived any data, I'm used PJSIP library, used Performance Investigator in > > carbide c++ to tracking power consumption and used Nokia Energy Profiler, > > but not access to thread responsible power consumption. > > what's work to solve this problem? > > > > Thanks for the report. First of all, I got to admit that we have not done > > extensive power profiling ourselves, but having said that, I think we've > > done all we can to improve power consumption, for example, we have zero > > polling on the Symbian target. So it could be that the poor power > > consumption that you observed is a characteristic of VoIP/SIP applications > > in general and not PJSIP in specific. > > > > Lets discuss where the power is consumed in PJSIP, assuming the application > > is idle. As I mentioned, we used zero polling on Symbian, so if the > > application is idle then basically PJSIP is stopped completely (no running > > code in the background as such). > > > > First to check is the sound device. The > > pjsua_media_config.snd_auto_close_time setting can be used to automatically > > close the sound device when it's not used, but by default this feature is > > disabled. Check that you've enabled it in your application. > > > > Then there are these keep-alive stuffs. If you have SIP registration, then > > of course we would need to periodically re-register, and apart from that, > > there is also keep-alive packets that are sent to keep the connection open. > > Default is every 15 seconds for UDP (pjsua_acc_config.ka_interval) and 90 > > seconds for TCP/TLS (PJSIP_TCP_KEEP_ALIVE_INTERVAL and > > PJSIP_TLS_KEEP_ALIVE_INTERVAL). > > > > If you use STUN/ICE, then the media sockets will also send keep alive > > packets, approximately every 15 seconds too (PJ_STUN_KEEP_ALIVE_SEC, > > PJ_TURN_KEEP_ALIVE_SEC, and PJ_ICE_ST_KEEP_ALIVE_MIN settings). > > > > All these keep alive packets takes up battery power, but it's just something > > that we need to do. You can disable them if you want (but at your own risk > > of course). > > > > And then of course the power spent to maintain the access point connection > > too. > > > > It would be great if you come back with new data after you optimize your > > application based on above. > > > > cheers > > Benny > > > > > > ________________________________ > > See all the ways you can stay connected to friends and family > > ________________________________ > > check out the rest of the Windows Live?. More than mail?Windows Live? goes > > way beyond your inbox. More than messages > > _______________________________________________ > > 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 > > > > > > _______________________________________________ > 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 _________________________________________________________________ News, entertainment and everything you care about at Live.com. Get it now! http://www.live.com/getstarted.aspx -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090323/d9acac9b/attachment-0001.html>
