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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 7622 Matteo Canella 05/23/2011 04:43AM
Re: Poor performance of MySQL 5.5 2772 Rick James 05/24/2011 08:14AM
Re: Poor performance of MySQL 5.5 3022 Matteo Canella 05/25/2011 04:10AM
Re: Poor performance of MySQL 5.5 3145 Rick James 05/25/2011 10:40AM
Re: Poor performance of MySQL 5.5 2040 Merlotti Nicola 05/31/2011 07:15AM
Re: Poor performance of MySQL 5.5 1774 Rick James 05/31/2011 09:03AM
Re: Poor performance of MySQL 5.5 1592 Matteo Canella 05/31/2011 11:15AM
Re: Poor performance of MySQL 5.5 2106 Matteo Canella 06/03/2011 01:44AM
Re: Poor performance of MySQL 5.5 1297 Matteo Canella 06/03/2011 02:20AM
Re: Poor performance of MySQL 5.5 2135 Rick James 06/03/2011 09:33AM
Re: Poor performance of MySQL 5.5 1628 Nicola Merlotti 06/03/2011 11:25AM
Re: Poor performance of MySQL 5.5 2447 Matteo Canella 06/09/2011 05:36AM
Re: Poor performance of MySQL 5.5 1440 Nicola Merlotti 06/03/2011 11:38AM
Re: Poor performance of MySQL 5.5 1243 Rick James 06/03/2011 07:13PM
Re: Poor performance of MySQL 5.5 1178 Vladislav Vaintroub 06/11/2011 07:30PM
Re: Poor performance of MySQL 5.5 1067 Vladislav Vaintroub 06/11/2011 07:32PM
Re: Poor performance of MySQL 5.5 1348 Matteo Canella 06/12/2011 10:09AM
Re: Poor performance of MySQL 5.5 1126 Jerry Richart 06/15/2011 01:08PM


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