# very high CPU usage in mysql server

**URL:** <https://forums.percona.com/t/very-high-cpu-usage-in-mysql-server/6108>\
**Category:** Other MySQL® Questions\
**Created:** [January 8, 2018, 8:33am UTC](https://forums.percona.com/t/very-high-cpu-usage-in-mysql-server/6108 "2018-01-08T08:33:57Z")\
**Posts on this page:** 1\
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**Author:** ![sayeedanas](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/sayeedanas/32/26_2.png) [@sayeedanas](https://forums.percona.com/u/sayeedanas)\
**Post date:** [January 10, 2018, 2:15am UTC](https://forums.percona.com/t/very-high-cpu-usage-in-mysql-server/6108/4 "2018-01-10T02:15:55Z")

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[satheesh](https://percona.vanillacommunities.com/profile/x/x/41674), you can try below command for check what your ibdata contain, Might be you need to install “innochecksum” first, Most probably, you have many undo logs pages there if your server is heavily written load sever And I believe, you have already enabled “innodb\_file\_per\_table”

# ./innochecksum /var/lib/mysql/ibdata1

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