I recently did some performance testing with openser 1.1 and stumbled over a rather strange thing. The xlog command from the xlog module seems to cause a huge performance penalty.
I have a rather complex config with many routing blocks and mysql queries with which I can achieve up to 100 calls per second (authenticated INVITEs) per openser instance. As soon as I add *one* xlog statement to the config the cps rate goes down to 25, and the average SIP message response time goes up from <10ms to >200ms.
Has anyone else observed this behavior or could this issue be caused by a misconfiguration?
thanks, Christian
I guess it is related to your syslog daemon rather than to xlog functions. Is your syslog configured asynchronous?
http://voice-system.ro/docs/ser-syslog/ar01s06.html
Cheers, Daniel
On 11/06/06 05:05, Christian Schlatter wrote:
I recently did some performance testing with openser 1.1 and stumbled over a rather strange thing. The xlog command from the xlog module seems to cause a huge performance penalty.
I have a rather complex config with many routing blocks and mysql queries with which I can achieve up to 100 calls per second (authenticated INVITEs) per openser instance. As soon as I add *one* xlog statement to the config the cps rate goes down to 25, and the average SIP message response time goes up from <10ms to >200ms.
Has anyone else observed this behavior or could this issue be caused by a misconfiguration?
thanks, Christian
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Daniel-Constantin Mierla wrote:
I guess it is related to your syslog daemon rather than to xlog functions. Is your syslog configured asynchronous?
Exactly, syslog was running in synchronous mode.
thanks a lot, Christian
Cheers, Daniel
On 11/06/06 05:05, Christian Schlatter wrote:
I recently did some performance testing with openser 1.1 and stumbled over a rather strange thing. The xlog command from the xlog module seems to cause a huge performance penalty.
I have a rather complex config with many routing blocks and mysql queries with which I can achieve up to 100 calls per second (authenticated INVITEs) per openser instance. As soon as I add *one* xlog statement to the config the cps rate goes down to 25, and the average SIP message response time goes up from <10ms to >200ms.
Has anyone else observed this behavior or could this issue be caused by a misconfiguration?
thanks, Christian
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Hmm, useful tip. Well worth noting for performance reasons.
I wonder, do you know if this could have an effect on how information is logged to the log file?
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.
On 11/6/06, Daniel-Constantin Mierla daniel@voice-system.ro wrote:
I guess it is related to your syslog daemon rather than to xlog functions. Is your syslog configured asynchronous?
http://voice-system.ro/docs/ser-syslog/ar01s06.html
Cheers, Daniel
On 11/06/06 05:05, Christian Schlatter wrote:
I recently did some performance testing with openser 1.1 and stumbled over a rather strange thing. The xlog command from the xlog module seems to cause a huge performance penalty.
I have a rather complex config with many routing blocks and mysql queries with which I can achieve up to 100 calls per second (authenticated INVITEs) per openser instance. As soon as I add *one* xlog statement to the config the cps rate goes down to 25, and the average SIP message response time goes up from <10ms to >200ms.
Has anyone else observed this behavior or could this issue be caused by a misconfiguration?
thanks, Christian
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Hello,
On 11/07/06 15:20, Max Gregorian wrote:
Hmm, useful tip. Well worth noting for performance reasons.
I wonder, do you know if this could have an effect on how information is logged to the log file?
I have
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.
On 11/6/06, *Daniel-Constantin Mierla* <daniel@voice-system.ro mailto:daniel@voice-system.ro> wrote:
I guess it is related to your syslog daemon rather than to xlog functions. Is your syslog configured asynchronous? http://voice-system.ro/docs/ser-syslog/ar01s06.html Cheers, Daniel On 11/06/06 05:05, Christian Schlatter wrote: > I recently did some performance testing with openser 1.1 and stumbled > over a rather strange thing. The xlog command from the xlog module > seems to cause a huge performance penalty. > > I have a rather complex config with many routing blocks and mysql > queries with which I can achieve up to 100 calls per second > (authenticated INVITEs) per openser instance. As soon as I add *one* > xlog statement to the config the cps rate goes down to 25, and the > average SIP message response time goes up from <10ms to >200ms. > > Has anyone else observed this behavior or could this issue be caused > by a misconfiguration? > > thanks, > Christian > ------------------------------------------------------------------------ > > _______________________________________________ > Users mailing list > Users@openser.org <mailto:Users@openser.org> > http://openser.org/cgi-bin/mailman/listinfo/users > _______________________________________________ Users mailing list Users@openser.org <mailto:Users@openser.org> http://openser.org/cgi-bin/mailman/listinfo/users
This went out without the content ....
On 11/13/06 11:43, Daniel-Constantin Mierla wrote:
Hello,
On 11/07/06 15:20, Max Gregorian wrote:
Hmm, useful tip. Well worth noting for performance reasons.
I wonder, do you know if this could have an effect on how information is logged to the log file?
Basically syslog should take care of ordering, but I have no clue if it is so. Some data may be lost, but the application is still running. I think is similar to mysql insert delayed, which returns immediately and writes data when it can. If the syslog/mysql crashes then some data can be lost.
Cheers, Daniel
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.
On 11/6/06, *Daniel-Constantin Mierla* <daniel@voice-system.ro mailto:daniel@voice-system.ro> wrote:
I guess it is related to your syslog daemon rather than to xlog functions. Is your syslog configured asynchronous? http://voice-system.ro/docs/ser-syslog/ar01s06.html Cheers, Daniel On 11/06/06 05:05, Christian Schlatter wrote: > I recently did some performance testing with openser 1.1 and stumbled > over a rather strange thing. The xlog command from the xlog module > seems to cause a huge performance penalty. > > I have a rather complex config with many routing blocks and mysql > queries with which I can achieve up to 100 calls per second > (authenticated INVITEs) per openser instance. As soon as I add*one* > xlog statement to the config the cps rate goes down to 25, and the > average SIP message response time goes up from <10ms to >200ms. > > Has anyone else observed this behavior or could this issue be caused > by a misconfiguration? > > thanks, > Christian >
> > _______________________________________________ > Users mailing list > Users@openser.org <mailto:Users@openser.org> > http://openser.org/cgi-bin/mailman/listinfo/users > _______________________________________________ Users mailing list Users@openser.org <mailto:Users@openser.org> http://openser.org/cgi-bin/mailman/listinfo/users
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Max Gregorian