[Gluster-users] another look at high concurrency and cpu usage

John Madden jmadden at ivytech.edu
Tue Feb 16 14:23:16 UTC 2010

> Are you observing high cpu usage on client side or server side? If it is 
> on client side, can you remove all performance translators and observe 
> whether you still face the same problem? If removing performance 
> translators solves the problem of high cpu usage, is it possible to zero 
> in on particular translator (write-behind, io-cache, read-ahead etc) by 
> adding and removing them from configuration? I am suspecting io-cache to 
> be the culprit.

Definitely worth looking into more deeply.  CPU usage was on the client 
side.  The end configuration I was using is what I posted -- writeback 
and io-cache.  I'll see about eliminating them to further test behavior.


John Madden
Sr UNIX Systems Engineer
Ivy Tech Community College of Indiana
jmadden at ivytech.edu

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