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Re: How to see key_buffer in action
Posted by: Stefan Frömken
Date: November 09, 2012 05:54AM

OK...I have it. Is wasn't a MySQL-Cache which disturbs me. It was a operating system cache. Thanks to:

http://www.mysqlperformanceblog.com/2007/09/12/query-profiling-with-mysql-bypassing-caches/

and

http://www.linuxinsight.com/proc_sys_vm_drop_caches.html

One solution is:

echo 3 >/proc/sys/vm/drop_caches

Stefan

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