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Re: Big load average Dell PowerEdge 6850 and MySQL 5.0.88-ius-log Distributed by The IUS Community Project
Posted by: Rick James
Date: January 12, 2010 12:47AM

Does table1 have
INDEX(enable, datetime)

The load averages imply you are CPU-bound, not I/O bound?

Are you running MyISAM or InnoDB or both?
innodb_buffer_pool_size -- probably too low on either box.

key_buffer_size -- at one point you say InnoDB 'only', yet the default is MyISAM. What is the real case?

long_query_time = 10 -- shrink this to 2, then study the stuff that goes into the slow log. We can try to optimize those queries. This is not very useful:
log-queries-not-using-indexes

You have this set to both 24 and 16 in A102:
innodb_thread_concurrency

Do you use the query_cache effectively? If not turn it OFF.

innodb_log_file_size = 256M
innodb_log_files_in_group = 3
-- set on one machine, but not the other; what gives?

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Re: Big load average Dell PowerEdge 6850 and MySQL 5.0.88-ius-log Distributed by The IUS Community Project
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January 12, 2010 12:47AM


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