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by dan-robertson
540 days ago
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I’m quite confused by your comment. I think this subthread is about reasons one might see variance on modern hardware in your ‘most control’ end of the continuum. The start of the thread was about some ways where VM warmup (and benchmarking) may behave differently from how many reasonably experienced people expect. I claim it’s reasonably different because one cannot tame parts of the VM warmup issues whereas one can tame many of the sources of variability one sees in high-performance systems outside of VMs, eg by cutting out the OS/scheduler, by disabling power saving and properly cooling the chip, by using CAT to limit interference with the L3 cache, and so on. |
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That's not very different from targeting a single JS interpreter.
In fact, you get much more predictability by targeting a single JS interpreter than by trying to guess your hardware limitations... Except, of course if you target a single hardware specification.