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Re: Poor performance of MySQL 5.5
Posted by: Rick James ()
Date: June 03, 2011 07:13PM

innodb_flush_log_at_trx_commit=1 -- The disk subsystem, drivers, OS settings, etc play a big role. I would not expect 64-bit, number of cores, etc to have much impact.

innodb_flush_log_at_trx_commit=1 slows your "transactions per second" to roughly your "writes per second", which (for typical systems) is about 150K/hour.

If INSERTs are your main activity, then any of these can give you on the order of 10x speedup:
* Multiple INSERTs per BEGIN...COMMIT
* Batching 100 rows per INSERT statement
* Using LOAD DATA instead of INSERT.

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Subject Views Written By Posted
Poor performance of MySQL 5.5 8585 Matteo Canella 05/23/2011 04:43AM
Re: Poor performance of MySQL 5.5 3114 Rick James 05/24/2011 08:14AM
Re: Poor performance of MySQL 5.5 3334 Matteo Canella 05/25/2011 04:10AM
Re: Poor performance of MySQL 5.5 3471 Rick James 05/25/2011 10:40AM
Re: Poor performance of MySQL 5.5 2259 Merlotti Nicola 05/31/2011 07:15AM
Re: Poor performance of MySQL 5.5 1991 Rick James 05/31/2011 09:03AM
Re: Poor performance of MySQL 5.5 1799 Matteo Canella 05/31/2011 11:15AM
Re: Poor performance of MySQL 5.5 2301 Matteo Canella 06/03/2011 01:44AM
Re: Poor performance of MySQL 5.5 1474 Matteo Canella 06/03/2011 02:20AM
Re: Poor performance of MySQL 5.5 2368 Rick James 06/03/2011 09:33AM
Re: Poor performance of MySQL 5.5 1770 Nicola Merlotti 06/03/2011 11:25AM
Re: Poor performance of MySQL 5.5 2726 Matteo Canella 06/09/2011 05:36AM
Re: Poor performance of MySQL 5.5 1569 Nicola Merlotti 06/03/2011 11:38AM
Re: Poor performance of MySQL 5.5 1462 Rick James 06/03/2011 07:13PM
Re: Poor performance of MySQL 5.5 1319 Vladislav Vaintroub 06/11/2011 07:30PM
Re: Poor performance of MySQL 5.5 1189 Vladislav Vaintroub 06/11/2011 07:32PM
Re: Poor performance of MySQL 5.5 1553 Matteo Canella 06/12/2011 10:09AM
Re: Poor performance of MySQL 5.5 1269 Jerry Richart 06/15/2011 01:08PM


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