# Could I know this query?

**URL:** <https://forums.percona.com/t/could-i-know-this-query/7022>\
**Category:** PMM 1.x\
**Created:** [May 19, 2019, 8:56pm UTC](https://forums.percona.com/t/could-i-know-this-query/7022 "2019-05-19T20:56:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![macservice123](https://avatars.discourse-cdn.com/v4/letter/m/ee7513/32.png) [@macservice123](https://forums.percona.com/u/macservice123)\
**Post date:** [May 19, 2019, 8:56pm UTC](https://forums.percona.com/t/could-i-know-this-query/7022/1 "2019-05-19T20:56:50Z")

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hi,

this query is slow query in my database.

SELECT  
EVENT\_NAME,  
COUNT\_READ, SUM\_TIMER\_READ, SUM\_NUMBER\_OF\_BYTES\_READ,  
COUNT\_WRITE, SUM\_TIMER\_WRITE, SUM\_NUMBER\_OF\_BYTES\_WRITE,  
COUNT\_MISC, SUM\_TIMER\_MISC  
FROM performance\_schema.file\_summary\_by\_event\_name;

as I know, this query is executed by pmm

and it takes 3~4 sec.

could I know which graph is related with this query?

and, could I turn off this query in pmm?

thanks.  
Cristiano  
[URL][https://www.facebook.com/chunsondz/[/URL]](https://www.facebook.com/chunsondz/%5B/URL%5D)

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<div class="post-metadata">

**Author:** ![Yoni\_Sade](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/yoni_sade/32/6565_2.png) [@Yoni\_Sade](https://forums.percona.com/u/Yoni_Sade)\
**Post date:** [May 16, 2022, 11:18am UTC](https://forums.percona.com/t/could-i-know-this-query/7022/2 "2022-05-16T11:18:17Z")

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In my environment this query chokes the MySQL RDS instance CPU because PMM runs it through 10 parallel DB sessions (each statement runs more than 5 minutes!).

Another long running query I see they run is:  
SELECT EVENT\_NAME, COUNT\_STAR, SUM\_TIMER\_WAIT  
FROM performance\_schema.events\_waits\_summary\_global\_by\_event\_name