Author - Alexey Stroganov

Watch Out for Disk I/O Performance Issues when Running EXT4

Performance Issues When Running EXT4

Recently, at Percona Live Europe 2019, Dimitri Kravchuk from Oracle mentioned that he observed some unclear drop in performance for MySQL on an ext4 filesystem with the latest Linux kernels. I decided to check this case out on my side and found out that indeed, starting from linux kernel 4.9, there are some cases […]

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Assessing MySQL Performance Amongst AWS Options – Part One

MySQL Performance on AWS

With such a wide range of options available for running MySQL based servers in Amazon cloud environments, how do you choose? There’s no doubt it’s a challenge. In this two-part series of blog posts, we’ll try to draw a fair and informative comparison based on well-established benchmark scenarios – at scale.
In part one we […]

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Percona XtraDB Cluster on Amazon GP2 Volumes

In this blog post, we look at the performance of Percona XtraDB Cluster on Amazon GP2 volumes.
In our overview blog post on Best Practices for Percona XtraDB Cluster on AWS, GP2 volumes did not show good results. However, we allocated only the size needed to fit the database (200GB volumes). Percona XtraDB Cluster did not show […]

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Does the Meltdown Fix Affect Performance for MySQL on Bare Metal?

Meltdown Fix Affect Performance small

In this blog post, we’ll look at does the Meltdown fix affect performance for MySQL on bare metal servers.
Since the news about the Meltdown bug, there were a lot of reports on the performance hit from proposed fixes. We have looked at how the fix affects MySQL (Percona Server for MySQL) under a sysbench […]

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