JIT Information Discussion about profiler HOT 5 CLOSED

Baseline vs Ion

You can tell from the stacks if JS which monkey is working (interpreter, baseline, ion).

Generally interesting would be also how much time generally is spend in jitting and invalidation.

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As further discussed, you can't tell from the stack. But as it turns out, the original SPS profile already has this information, and the new cleopatra is no longer discarding it, so we actually have it in hand. (!) I've updated the summary view to separate out ion/baseline script execution, though that's for the whole profile. I took a stab at exposing that information in several more places, but it seems I will need to learn React first. (And maybe, y'know, modern web development, and all that.)

But this issue is really mostly about the JIT Coach stuff, so I'll file issues for the stuff I wanted to add.

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(And maybe, y'know, modern web development, and all that.)

😂

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This thread isn't actionable by itself, but I'm leaving it open for now as a discussion to reference in follow-up work. Once we have some action items this will probably be fine to close.

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I'm closing this as it was more of a discussion thread.

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