I think you are asking a very difficult question. Performance tuning of any server, or system, is a time-consuming tasks. In 1997 we diagnose and tune a slow system - which ultimately took two weeks, and it involved specialist from network + database server + client and server application .... though 30% of the slowness was attributed to the ATM card used, but across the board lots of stuff was changed within that two weeks as well. In short, look at the big picture. And your SIP proxy server is very product-specific. Eg, if u are using opensource Asterisk, then perhaps this page can provide clues: http://www.voip-info.org/wiki/view/Asterisk+dimensioning and as u can see, the amount of consideration is still very wide ranging and specific to your environment setup etc. Keywords to google is "sizing", or performance tuning. But I do know one particular commercial PABX system modified and use an older version of Linux kernel (which has less features and therefore more efficient) as their core. Since there is only one core, so spin locks effectively compiled to NOP and thereby it helps push up performance. Hope that helps. On Mon, Oct 3, 2011 at 10:52 PM, chao peng <pengchao06@xxxxxxxxx> wrote: > help > > 2011/9/23 <kernelnewbies-request@xxxxxxxxxxxxxxxxx> >> >> Send Kernelnewbies mailing list submissions to >> kernelnewbies@xxxxxxxxxxxxxxxxx >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> or, via email, send a message with subject or body 'help' to >> kernelnewbies-request@xxxxxxxxxxxxxxxxx >> >> You can reach the person managing the list at >> kernelnewbies-owner@xxxxxxxxxxxxxxxxx >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Kernelnewbies digest..." >> >> >> Today's Topics: >> >> 1. Optimizing the performance of the Scheduler in the Kernel 3.0 >> (Edward Alvarez) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Thu, 22 Sep 2011 15:35:21 +0000 >> From: Edward Alvarez <edwardalvarezm@xxxxxxxxx> >> Subject: Optimizing the performance of the Scheduler in the Kernel 3.0 >> To: kernelnewbies@xxxxxxxxxxxxxxxxx >> Message-ID: >> >> <CAPzfdHbs7QBGpAwtPYFrA3y33Orpb=mBcwS6XH6Le66h5mMv3w@xxxxxxxxxxxxxx> >> Content-Type: text/plain; charset="iso-8859-1" >> >> Greetings, >> <kernelnewbies@xxxxxxxxxxxxxxxxx> >> >> I want to optimize the performance of the scheduler in the Kernel 3.0 in >> order to increase the number of calls a Sip proxy server can handle. >> >> I read about the scheduler in the Kernel 2.6 and was able to find the >> variables MIN_TIMESLICE, MAX_TIMESLICE, PRIO_BONUS_RATIO, MAX_SLEEP_AVG >> and >> STARVATION_LIMIT. If I tune this variables I can tweak the performance of >> the scheduler, but in the new kernel I cant find any documentation that >> allows to successfully modify the scheduler. >> >> I would gladly appreciate any information related to the scheduler in the >> new kernel, or documentation about the new variables that are similar to >> the >> ones I mentioned. >> >> Thanks in advance for your time. >> >> Edward Alvarez. >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20110922/41ba2c6e/attachment-0001.html >> >> ------------------------------ >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> >> End of Kernelnewbies Digest, Vol 10, Issue 39 >> ********************************************* > > > > -- > I believe I can fly. > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > -- Regards, Peter Teoh _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
