https://www.fromdual.com/tags/status-variables/Recent content in Status Variables on FromDual GmbHHugoen-GBoli.sennhauser@fromdual.com (Oli Sennhauser)oli.sennhauser@fromdual.com (Oli Sennhauser)© FromDual GmbHMon, 08 Feb 2021 09:30:48 +0000https://www.fromdual.com/blog/innodb-variables-and-status-explained/Mon, 02 Jul 2012 17:07:32 +0000oli.sennhauser@fromdual.com (Oli Sennhauser)https://www.fromdual.com/blog/innodb-variables-and-status-explained/<h2 id="innodb-buffer-pool">InnoDB Buffer Pool</h2> <p>The InnoDB Buffer Pool is the memory area where the InnoDB Storage Engine caches its data and index blocks. Each InnoDB data and index block has a size of <a href="http://dev.mysql.com/doc/refman/5.5/en/server-status-variables.html#statvar_Innodb_page_size" target="_blank"><code>Innodb_page_size</code></a> (16384 byte = 16 kbyte). The InnoDB Buffer Pool is configured in bytes with the <a href="http://dev.mysql.com/doc/refman/5.5/en/innodb-parameters.html#sysvar_innodb_buffer_pool_size" target="_blank"><code>innodb_buffer_pool_size</code></a> variable. On a dedicated system the InnoDB Buffer Pool can be configured up to 80% of the systems physical RAM (<code>free</code>).</p>https://www.fromdual.com/blog/mysql-handler-read-status-variables/Sat, 13 Mar 2010 21:06:01 +0000oli.sennhauser@fromdual.com (Oli Sennhauser)https://www.fromdual.com/blog/mysql-handler-read-status-variables/<p>Because I do a lot of Performance Tuning gigs I get often in contact with these status variables. In the beginning I had a problem to understand them and now I have a problem to memorize the relation of the name and the meaning. Therefore I wrote this little summary:</p>