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Enabling and Disabling Jemalloc on Percona Server

 | January 3, 2017 |  Posted In: Insight for DBAs, MySQL

MariaDB ColumnStore

This post discusses enabling and disabling jemalloc on Percona Server for MySQL. The benefits of jemalloc versus glibc for use with MySQL have been widely discussed. With jemalloc (along with Transparent Huge Pages disabled) you have less memory fragmentation, and thus more efficient resource management of the available server memory. For standard installations of Percona Server 5.6+ […]

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Memory allocators: MySQL performance improvements in Percona Server 5.5.30-30.2

 | April 15, 2013 |  Posted In: Benchmarks, MySQL, Percona Software

In addition to the problem with trx_list scan we discussed in Friday’s post, there is another issue in InnoDB transaction processing that notably affects MySQL performance – for every transaction InnoDB creates a read view and allocates memory for this structure from heap. The problem is that the heap for that allocation is destroyed on […]

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