No, I turned it off. -Jan
On Thu, May 26, 2011 at 11:50, Daniel-Constantin Mierla <mico...@gmail.com> wrote: > Hello, > > out of curiosity, since you used the sources from GIT - was memory debugging > on? It is usually enabled in master branch and that could have some impact > in memory usage and performances... > > Thanks, > Daniel > > On 5/25/11 3:00 PM, Jan Janak wrote: >> >> On Wed, May 25, 2011 at 06:54, Jeremya<jer...@electrosilk.net> wrote: >>> >>> These figures pale into insignificance compared to the power required >>> for standard SIP devices - typically 5-8 watts per device multiplied by >>> the number of devices. >>> >>> When you factor in Gigabit Ethernet the power ups significantly. >>> >>> Optimisation at the server level is not significant on any scale. >>> Optimisation on communications power: i.e. end-devices, DSL& switches >>> is where the power savings are important. >> >> Sure, the total power consumption of the whole system is dominated by >> the power consumption of end-point devices, there's no doubt about >> that and the paper says that. >> >> Nevertheless, as an ITSP you are typically paying for the energy >> consumed by your servers and in that case knowing what you can expect >> and how many servers you need is useful. Modern data-center servers >> have significant base-line power consumption and a portion of that >> needs to be attributed to the SIP service running on those servers. >> >> -Jan >> >>> Daniel-Constantin Mierla wrote: >>>> >>>> Hello, >>>> >>>> Jan Janak conducted a very interesting research project regarding >>>> energy efficiency of VoIP systems during 2010, a collaboration between >>>> iptel.org and Columbia University. >>>> >>>> The team used the source code from sip-router.org GIT repository from >>>> January 2010, which corresponds to Kamailio (former OpenSER) and SER >>>> v3.0. The latest stable series v3.1 shares the same internal >>>> architecture with v3.0. >>>> >>>> As part of the research work, Jan could also gather some figures about >>>> capacity and performances of v3.0 with a quite complex configuration >>>> file: etc/sip-router-oob.cfg (involving authentication and NAT >>>> traversal as well). >>>> >>>> You can read the paper about energy efficiency at: >>>> >>>> - Green VoIP Article: http://asipto.com/u/2j >>>> >>>> The draft notes about capacity and performances of v3.0 are available >>>> at: >>>> >>>> - Performances and Capacity for v3.0 Wiki page: http://asipto.com/u/2k >>>> >>>> Some interesting results: >>>> >>>> - one instance of SIP server with 500 000 online users (mixed users – >>>> behind and not NAT routers) – consumed energy 210W >>>> - one instance of SIP server with 1 000 000 online users (no NAT >>>> involved) – consumed energy 190W >>>> - on a 32-bit machine with 4GB of memory and with 2.5GB reserved for >>>> SIP server, the server could support 43 000 simultaneous TLS >>>> connections – consumed energy 203W >>>> - one SIP server instance with 80 000 permanent TCP connections, the >>>> SIP server could still handle at least 1000 requests per second and a >>>> connection arrival rate of 1000 new connections per second, done for >>>> 20 000 new connections. CPU load generated by the SIP server was from >>>> 6% to 8%. >>>> >>>> I added a new section to the draft notes to list the enhancements done >>>> for the latest stable release (v3.1.x) that contribute to performance >>>> improvements, like asynchronous TLS, fine tuning of memory for TLS >>>> connections and raw UDP sockets. >>>> >>>> Cheers, >>>> Daniel >>>> >>> >>> _______________________________________________ >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>> sr-users@lists.sip-router.org >>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >>> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla > http://www.asipto.com > > _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
