mysql is not using multiple cpus

Posted by mhost on Server Fault See other posts from Server Fault or by mhost
Published on 2010-12-26T09:30:16Z Indexed on 2012/11/13 17:03 UTC
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mysql

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Performance

Our MySQL server has been using a lot of CPU lately (it's reached 100% several times and stays there for a while) and I noticed that it the CPU load is all on one core of one cpu. I was hoping to spread that out to all 4 on my server.

I have been tweaking the MySQL settings to use more ram and less cpu, but it still occasionally reaches very high CPU usage.

It seems like everything about the topic refers to thread_concurrency (which I've read is a solaris only setting). What can I do in Linux?

Thanks.

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