# CPU usage ignition

**URL:** <https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948>\
**Category:** General Discussion\
**Created:** [February 3, 2021, 12:08pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948 "2021-02-03T12:08:24Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![tom.wouters](https://avatars.discourse-cdn.com/v4/letter/t/d2c977/32.png) [@tom.wouters](https://forum.inductiveautomation.com/u/tom.wouters)\
**Post date:** [February 3, 2021, 12:08pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/1 "2021-02-03T12:08:24Z")

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Hello,

 ![CPU_Usage](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/d/ed07941c00ec26b9da92889a3b93f47248b4fbb0.png) ![Task_Manager](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/7/179ceea7e4420efbbc06d9545f59034c0a4f7589.png)

We have a problem with ignition using a very high CPU load.  
Is there anyway we can look where this load is coming from?  
Screenshots attached.

We’re using ignition V7

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [February 3, 2021, 12:42pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/2 "2021-02-03T12:42:59Z")

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> [@tom.wouters](#):
>
> We’re using ignition V7

That covers over ten years of Ignition. What x and y of Ignition v7.x.y ?

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<div class="post-metadata">

**Author:** ![tom.wouters](https://avatars.discourse-cdn.com/v4/letter/t/d2c977/32.png) [@tom.wouters](https://forum.inductiveautomation.com/u/tom.wouters)\
**Post date:** [February 3, 2021, 12:54pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/3 "2021-02-03T12:54:58Z")

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I’m sorry!  
V7.9.6.

Thanks in advance!

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [February 3, 2021, 1:10pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/4 "2021-02-03T13:10:12Z")

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The performance section of the gateway web interface has a thread monitor. Some patterns may be obvious there. If not, you will probably need to take and examine a thread dump.

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [February 3, 2021, 1:15pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/5 "2021-02-03T13:15:53Z")

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I seem to recall there being a couple of high CPU issues in the 7.9.6-ish range that I believe had fixes in 7.9.9 and 7.9.11.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 3, 2021, 1:17pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-ignition/42948/6 "2021-02-03T13:17:32Z")

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Probably the Jetty selector bug that only happens on Windows if I had to guess.

One thread about it: [[Bug]: High Cpu Usage after I click around on my designer for a while](http://forum.inductiveautomation.com/t/bug-high-cpu-usage-after-i-click-around-on-my-designer-for-a-while/29182)