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the op seemed to be asking if we should remove speculative execution optimizations entirely to avoid these security problems. if we did that, the execution time
by gameswithgo 7y ago
the op seemed to be asking if we should remove speculative execution optimizations entirely to avoid these security problems. if we did that, the execution time, if averaged over all the workloads use, would be more than just 30% slower. the slowdown would be so large that i felt comfortable speaking in vague generalities, rather than providing specific benchmarks which pedants on the internet would also reply to in anger stating that it was not a real world workload or whatever. can’t win, so i don’t try.
- BoorishBears 7y agoOP seemed to be doing no such thing. Period. If anything they’re asking the opposite! “Should we even be limiting the optimizations at all” They start with the question “are manufacturers are forced to remove specific optimizations” (which replying to with “going to be worse than 30%” doesn't meaningfully answe) and immediately counter it with the above question “why remove any optimizations” (which your reply also doesn’t answer at all) Calling out your arm wavy non-statement isn’t pedantry, asking that a comment be more than doomsaying noise isn’t either. Sorry if you feel otherwise.