From: Gavin Towey (gtoweyffn.com)
Date: Fri Jul 31 2009 - 13:23:45 CDT

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Entries in the slow log have a timestamp. You can read the file directly, but it's much easier to use a tool like maatkit for parsing the results of the log.

Try this:
http://www.maatkit.org/doc/mk-query-digest.html

Regards,
Gavin Towey

-----Original Message-----
From: Milan Andric [mailto:mandricgmail.com]
Sent: Friday, July 31, 2009 11:15 AM
To: mysqllists.mysql.com
Subject: logging slow queries with time

Hello,

I'm serving a burly Drupal install and at some points throughout the
day the mysql threads go way up and iowait peaks. I'm not sure which
is causing which but during this time the server is unresponsive. I
would like to determine if there is a poorly optimized query causing
this. I'm logging slow queries but is there a way to see when the
slow queries take place also? I'd like to know what queries are being
processed during this window of poor response time, usually around
noon local time.

Thanks in advance,

--
Milan

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