Tue, 16 Apr 2024 13:24:05 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.2 https://www.percona.com/blog/wp-content/uploads/2023/02/cropped-percona-favicon-32x32.png 32 32 76301791 https://www.percona.com/blog/a-guide-to-better-understanding-mysql-charset-levels/ https://www.percona.com/blog/a-guide-to-better-understanding-mysql-charset-levels/#respond Tue, 16 Apr 2024 13:24:05 +0000 https://www.percona.com/blog/?p=95701 We usually receive and see some questions regarding the charset levels in MySQL, especially after the deprecation of utf8mb3 and the new default uf8mb4. If you understand how the charset works on MySQL but have some questions regarding this change, please check out Migrating to utf8mb4: Things to Consider by Sveta Smirnova.Some of the questions […]]]> https://www.percona.com/blog/a-guide-to-better-understanding-mysql-charset-levels/feed/ 0 95701 https://www.percona.com/blog/analyzing-mysql-with-strace/ Tue, 30 Jun 2020 16:31:07 +0000 https://www.percona.com/blog/?p=69412 In this blog post, we will briefly explore the OS tool strace. It is not widely used due to its performance impacts, and we don’t recommend using it in production. Still, it is amazing at helping you understand some things that happen in MySQL, where the OS is involved, and as a last case resource […]]]> 69412 https://www.percona.com/blog/a-simple-approach-to-troubleshooting-high-cpu-in-mysql/ https://www.percona.com/blog/a-simple-approach-to-troubleshooting-high-cpu-in-mysql/#comments Thu, 23 Apr 2020 16:15:09 +0000 https://www.percona.com/blog/?p=67247 One of our customers recently asked whether it is possible to identify, from the MySQL side, the query that is causing high CPU usage on his system. The usage of simple OS tools to find the culprit has been a widely used technique for a long time by PostgreSQL and Oracle DBAs, but it didn’t […]]]> https://www.percona.com/blog/a-simple-approach-to-troubleshooting-high-cpu-in-mysql/feed/ 2 67247