4 ms·
> Our mitigation requires minimal kernel changes (i.e., 2 LoC) and incurs only ≈5% geomean performance overhead on LMBench. 5 percent is not nothing but seems
by WJW 3y ago
> Our mitigation requires minimal kernel changes (i.e., 2 LoC) and incurs only ≈5% geomean performance overhead on LMBench.
5 percent is not nothing but seems like a worthwhile investment here. Really cool exploit strategy btw.
- loeg 3y ago5% is a pretty big regression.
- BobbyTables2 3y agoWould be one thing if a single 5% penalty solved all speculative vulnerabilities… But isn’t this like the 4th or 5th mitigation by now? Imagine paying extra for a 4ghz CPU only to find it operates no better than 3ghz on a good day…