# CPU Usage @ 50%

**URL:** <https://forum.inductiveautomation.com/t/cpu-usage-50/2300>\
**Category:** Ignition\
**Created:** [October 28, 2010, 5:18pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-50/2300 "2010-10-28T17:18:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Matthew\_Temple](https://avatars.discourse-cdn.com/v4/letter/m/7ea924/32.png) [@Matthew\_Temple](https://forum.inductiveautomation.com/u/Matthew_Temple)\
**Post date:** [October 28, 2010, 5:18pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-50/2300/1 "2010-10-28T17:18:41Z")

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Hello,

I am playing around with Ignition and slowly building a system to run side by side with my existing Ifix system.

I say slowly because I keep getting sidetracked by other jobs that come up. I am starting to build up my tag database and am currently monitoring 18 tags at varying scan times with no scan time less than 50000 ms.

I am not running any clients off of this gateway but notice that with ignition running my base cpu usage holds steady at 50% with spikes up to around 56% when a scan takes place.

This is an intel core 2 duo processor with 2GB of ram with windows XP os. I am curious as to why the gateway (java.exe process) is using this amount of cpu time on a constant basis.

The gateway version is 7.1.6.

Thank you for your help.

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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:** [October 28, 2010, 8:26pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-50/2300/2 "2010-10-28T20:26:38Z")

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Steady 50% CPU usage sounds a lot like 1 core is spinning constantly. Does this persist after restarting the gateway?

If you haven’t restarted it yet - don’t! Call in and maybe we can poke around first and see what’s wrong.

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**Author:** ![Matthew\_Temple](https://avatars.discourse-cdn.com/v4/letter/m/7ea924/32.png) [@Matthew\_Temple](https://forum.inductiveautomation.com/u/Matthew_Temple)\
**Post date:** [October 28, 2010, 9:44pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-50/2300/3 "2010-10-28T21:44:46Z")

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Kevin & Mike,

I was amazed that you took my call and went through my gateway like you did. Hopefully you do not have to spend too much time before discovering the cause.

I am very impressed with your speed and quality of service and will note that in my changing to ignition proposal.

Once again, thank you.

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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:** [October 28, 2010, 11:36pm UTC](https://forum.inductiveautomation.com/t/cpu-usage-50/2300/4 "2010-10-28T23:36:45Z")

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We’ve added some logging to the 7.1.7 version that will help us diagnose this if it happens again. When we release (probably this week) we will give you a call and make sure you get upgraded OK.