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asdfasgasdgasdg
on April 10, 2020
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Make Linux Fast Again (2019)
That's weird. I don't think anyone has measured these mitigations at a 50% perf hit even on crafted workloads. I wonder if something else is going on.
lallysingh
on April 10, 2020
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15% of pure cpu, but that doesn't take the consequences of the CPU improvement in other systems (e.g. crypto fs leading to higher iop rates, etc).
ogre_codes
on April 10, 2020
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parent
[–]
Running insecure performance enhancing kernel mods to speed up crypto fs....
It's a self defeating performance tip!
lallysingh
on April 10, 2020
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root
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TBH there's different threat models there. A crypto fs makes sense if you're worried about a box getting stolen, while spectre/etc aren't a concern if you're running regular userland stuff on a single-user box.
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