Tom Horstmann wrote:
Addendum..
Please also try increasing your innodb_log_file_size to a much higher value
if you
have lots of writes/transactions. Maybe 250MB is a good first try. You need to delete/move the InnoDB logs before restart.

Not sure about this, but please also set innodb_log_buffer_size. Try
something
between 16-32MB if you have many transactions.

Ok, we've increased the innodb_log_file_size to 500M, and that has not changed the IO wait at all so far (after 1 hour).


Thanks!
Josh Miller, RHCE

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