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Re: MySQL 5.6 update doubled IOs
Posted by: Rick James
Date: March 20, 2013 08:52AM

Your graphs show only 5.6? What was it like with 5.5?

The long-standing problem was that InnoDB transactions-per-second would periodically drop to almost literally zero for a second or so.

Percona's XtraDB has one solution; Oracle's 5.6 has a different solution. XtraDB has the solution in their 5.5 (and may have had it in previous versions). I have seen several independent graphs showing that the problem is solved in XtraDB.

I don't know if what I am describing matches your problem or the bug report. Mark Callaghan is an expert in InnoDB performance.

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