Axel Schwenke's Blog

January 24, 2018

Meltdown Vulnerability Impact On MariaDB Server

The recently found security vulnerabilities in various processors require modifications in operating systems. Those modifications make some operations more expensive, leading to a slowdown of running applications and/or services. Here we look at the impact on MariaDB Server.

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February 12, 2013

Sysbench OLTP: MySQL-5.6 vs. MariaDB-10.0

Oracle has now launched MySQL-5.6.10-GA, so it is time to come up with some new benchmark results. The test candidates in this benchmark run are

  • MySQL-5.5.29
  • MySQL-5.6.10
  • MariaDB-5.5.28a
  • MariaDB-10.0.1

The 5.5 versions are in because I wanted to check for any regressions. In the past we have often seen performance regressions in newer versions which were caused by new features.

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June 08, 2012

How To Tune MariaDB Write Performance

This article describes how I tuned MariaDB to give the best write throughput with SSD based storage. When you have a write-heavy application writing into InnoDB, you will probably experience the InnoDB Checkpoint Blues. The effect manifests as stalls - short periods of time where the troughput falls to zero and I/O activity goes crazy. The phenomenon is well known and described i.e. here.

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June 07, 2012

5.5 Series Sysbench OLTP Results

A few days ago MariaDB, MySQL and Percona all three released new versions of the 5.5 server. So I decided it's time to run sysbench once more and compare the OLTP performance. The test candidates are:

  • MariaDB-5.5.24, using either XtraDB (default) or InnoDB
  • MySQL-5.5.25
  • Percona Server 5.5.24-26.0

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