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I noticed that I would have insane CPU spikes (400%+) whenever I type in a math equation (even something simple like 1+2) into spotlight. The task that spikes is called mds_stores. Does anyone know if this is just an issue with my system/is there some sort of software fix coming?

Attached = picture of the spike

High CPU spike

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    on Mojave I can see a simple calculation does make mds_stores spike for one refresh cycle, but in my case it's about "half a core" not "four cores". If I lift Activity Monitor's update frequency to very fast (1s) then I see 'one core' for about 2 seconds.
    – Tetsujin
    Jul 10, 2020 at 11:11

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I have this issue too, on two Macs. As a workaround I've had to kill mds_stores and launch an app, the App Store or something to have the CPU return to idle.

Here is the bug in action: https://youtu.be/Ymc5ElAdUIQ

I've reported to Apple FWIW.

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