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Re: transaction rate drops gradually
Posted by: Aftab Khan
Date: April 17, 2009 03:21AM

Can you list the number of operations each of your SP perform?
Also do you observe any innodb DEADLOCKS?

Trun this OFF innodb_doublewrite (This variable can be turned off with --skip-innodb_doublewrite for benchmarks or cases when top performance is needed rather than concern for data integrity or possible failures.)

if possible try using the InnoDB plugin version 1.0.3 available at InnoDB.com

Try to test innodb_concurrency_tickets between 10000, 5000, and 500; innodb_thread_sleep_delay between 20000, 10000, and 5000; and innodb_thread_conncurrency between 8, 6, and 4

One more thing I'll like you to do , if your CPU has HyperThreading, turn it off.



Edited 3 time(s). Last edit at 04/17/2009 03:42AM by Aftab Khan.

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