3 ms·
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.
by asdfasgasdgasdg 7y ago
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 7y ago15% 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 7y agoRunning insecure performance enhancing kernel mods to speed up crypto fs.... It's a self defeating performance tip!
- lallysingh 7y agoTBH 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.