Yeah, I believe so, since when calls are establishing the cpu load is not a problem.<br><br><div class="gmail_quote">On Sat, Jul 7, 2012 at 10:25 PM, Henry Huang <span dir="ltr"><<a href="mailto:red.rain.seven@gmail.com" target="_blank">red.rain.seven@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font color="#333333"><font><font face="verdana,sans-serif">From my experience playing with different CPS values. The CPU spike is usually caused by the 'tearing down' process. If you increase the call duration, you will be able to see CPU spikes when channels times out and starting to tear down. <br>
<span class="HOEnZb"><font color="#888888">
<br>Henry<br></font></span></font></font></font><br><div class="gmail_quote"><div><div class="h5">On Sat, Jul 7, 2012 at 12:46 AM, Hanie Maghsoudy <span dir="ltr"><<a href="mailto:h.maghsoudy@gmail.com" target="_blank">h.maghsoudy@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">Hi all,<br><br>I searched for FreeSwitch call capacity, but most of the results wasn't new. So, I wanna ask if anybody has either tested FreeSwitch's performance recently, or got a dramatic result in real environment?<br>
<br>I tested call quality on this machine:<br><br>Virtual FreeSwitch server<br>OS: CentOS release 6.2 - x86_64<br>CPU: 8 processor - Intel(R) Xeon(R) CPU X5670 @ 2.93GHz<br>Memory: 8 G<br><br>After receiving incoming calls, FreeSwitch routed them to another sip server, without transcoding. The other server transmitted calls by playing an audio file. Meanwhile, I called an extension in FreeSwitch to test the call quality.<br>
<br>The result was like this:<br><br>1000 Concurrent calls<br>Call duration: 160s<br>Call rate: 6 cps (just creating channels)<br>Max used Memory: 1416M<br>Max CPU load: 0.24<br>Max Network throughput (recv/send): 6711k/80k<br>
Quality: Good<br><br>This test was taken before tearing down the channels.<br><br>Then, I took another test to estimate calls per second, and it wasn't what I was expected!<br><br><br>150 Concurrent calls<br>Call duration: 4s<br>
Call rate: 30 cps (creating and tearing down)<br>Max used Memory: 1293M<br>Max CPU load: 4.50<br>Max Network throughput (recv/send): 828k/60k<br>Quality: Average<br><br>And when I increase call rate to 50 cps:<br><br>1000 Concurrent calls<br>
Call duration: 4s<br>Call rate: 50 cps (creating and tearing down)<br>Max used Memory: 1730M<br>Max CPU load: <b>29.9</b><br>Max Network throughput (recv/send): 1367k/202k<br>Quality: Bad<br><br>Why call per second is such a big problem? Did anyone get a better result on this?<br>
<br>Thanks,<br>Hanie<br><br>
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