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MySQL InnoDB performance improvement: InnoDB buffer pool instances – Updated!

MySQL / By /
High Performance MySQL

Are you running into MySQL load problems? Learn how to tune MySQL servers for a heavy InnoDB workload, by configuring innodb_buffer_pool_instances and increasing read/write I/O threads. Dividing the InnoDB buffer pool into multiple instances can improve Disk I/O. By doing so, you run your database more efficiently and faster. Here is a little help for you.

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How to flush MySQL query cache from time to time

MySQL / By /
High Performance MySQL

From time to time you need to flush MySQL’s query_cache to prevent fragmentation of free query cache memory space. Whether we need to flush the query cache is provided to us by MySQL’s Qcache_free_blocks status information. The higher the value the more fragmented free space is. In this post, you’ll learn how to flush the MySQL query cache unattended / automatic through a Linux cronjob and manually on the MySQL shell.

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MySQL query caching using PHP/Zend_Cache

Code base / By /

By using the Cache.php PHP class of the Zend Framework, you can relatively easy cache MySQL query results to disk. This ensures faster consecutive results and speeds up execution. In this context, caching means: execute a MySQL query once and save the result in a temporary file. For every time that same query is executed, you can simply use the result stored in your disk cache file, as long as the database hasn’t changed. Often it is faster to save this on the web server than having it to redo the query every time.

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