Spectre mitigations murder userspace performance

Re:Spectre mitigations murder userspace performance by xrisk on Saturday June 19, 2021 @09:31AM (#27560313)

I don’t think that’s a good safety heuristic.

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Re:Spectre mitigations murder userspace performance by hjek on Saturday June 19, 2021 @09:46AM (#27560418)

I agree that it's not good, yet anecdotally I've realized that a device has been compromised by running `top`, on Windows and on Linux. It's not a good heurestic because it's only disvoverable post-compromise.

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Re:Spectre mitigations murder userspace performance by jtbayly on Saturday June 19, 2021 @11:01AM (#27561002)

I’ve discovered a compromise before because of the fans going full speed on a server.

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