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Re: Linear MySQL Slow Downs Over Time
Posted by: Daniel Nichter
Date: September 14, 2005 01:35PM

I think it would be worth posting some processlists and maybe an example before and after of a query that runs 0.01 before and 90.00 after. I, personally, have not heard of a such an issue, a linear degradation of performance over such a short time. You asked earlier if there were any debugging functions: Not really. Between SHOW PROCESSLIST and EXPLAIN, a whole lot can be revealed. Although it's not really meant for this (troubleshooting short-span degradations), you could http://hackmysql.com/mysqlreport before while it's running good, then mysqlreport afterwards and see if any metrics have changed significantly.

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