<div>Hmm, useful tip. Well worth noting for performance reasons.</div>
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<div>I wonder, do you know if this could have an effect on how information is logged to the log file?</div>
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<div>I am logging in real-time in synchronous mode to a custom log file (using quite a few xlog statements in a routing block) on one of our servers as well, and I am seeing fragmentation in the log messages under high traffic. Timestamps and log messages all skewered and mangled together.
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<div><span class="gmail_quote">On 11/6/06, <b class="gmail_sendername">Daniel-Constantin Mierla</b> <<a href="mailto:daniel@voice-system.ro">daniel@voice-system.ro</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">I guess it is related to your syslog daemon rather than to xlog<br>functions. Is your syslog configured asynchronous?
<br><br><a href="http://voice-system.ro/docs/ser-syslog/ar01s06.html">http://voice-system.ro/docs/ser-syslog/ar01s06.html</a><br><br>Cheers,<br>Daniel<br><br><br>On 11/06/06 05:05, Christian Schlatter wrote:<br>> I recently did some performance testing with openser
1.1 and stumbled<br>> over a rather strange thing. The xlog command from the xlog module<br>> seems to cause a huge performance penalty.<br>><br>> I have a rather complex config with many routing blocks and mysql
<br>> queries with which I can achieve up to 100 calls per second<br>> (authenticated INVITEs) per openser instance. As soon as I add *one*<br>> xlog statement to the config the cps rate goes down to 25, and the<br>
> average SIP message response time goes up from <10ms to >200ms.<br>><br>> Has anyone else observed this behavior or could this issue be caused<br>> by a misconfiguration?<br>><br>> thanks,<br>> Christian
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