Sudden spike in CPU usage

Hi everyone, I noticed my C8-Pro is suddenly using a lot of CPU. How do I go about diagnosing this?

check the logs

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Brilliant idea.

Spike happened around 2:30pm yesterday. Nothing suspicious in the general logs. Only an alert in the Location Events:

I'm gonna do something super crazy and reboot.

check app and device stats

I am not very good at interpreting the device and app stats pages, but before the reboot Philips Hue was at the top by a mile.

It also got quite hot:

Reboot seems to have brought things back to the normal 3%-5% range.

weird

I have had this happen a few times, usually after a platform upgrade, and a reboot with database rebuild (advanced option when rebooting) usually solves the issue. If you haven't done this in a while, I would recommend doing it just to make sure the database isn't corrupted.

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I'll do that if I see it misbehave again. So far it's all good.

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looks the same as original post, no? what improved?

Look at the far right: it has dropped back to the usual range

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