Any way to detect performance in a test case?

[Qu Wenruo <quwenruo.btrfs@xxxxxxx>]

Hi,

Is there any way to detect (huge) performance regression in a test case?

By huge performance regression, I mean some operation takes from less
than 10s to around 400s.

There is existing runtime accounting, but we can't do it inside a test
case (or can we?)

So is there any way to detect huge performance regression in a test case?

Thanks,
Qu

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