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by walki 2260 days ago
> Net result: they do not. For my use case (Clojure/JVM and ClojureScript compilation), compile times did not get shorter. There seemed to be a slight improvement, but it was below the level of measuring noise (which was around 8%).

I think the level of measuring noise is 0.5%, at least that is what low level system programmers generally consider as noise...
3 comments
abainbridge 2260 days ago
I don't think anyone else gets to say how much noise the GP saw in their test.
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betimsl 2260 days ago
How can you know that information?
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jwr 2260 days ago
Compile times for my project are around 2m15s to 2m30s. Since this work involves lots of CPU (some single-threaded, some multi-threaded work) and I/O, the spread mentioned above is what I get with multiple measurements.

While it's true that without the mitigations times were much closer to the 2:15 mark, there were still outliers at 2:24. Which means it's hard to draw any meaningful conclusions.

Not sure where you got the "0.5%" figure from.

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