js vs wasm and js vs js across browsers

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Lars Hansen

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Dec 19, 2018, 2:38:41 AM12/19/18
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This is a sample-of-one but looks interesting:
https://medium.com/@torch2424/webassembly-is-fast-a-real-world-benchmark-of-webassembly-vs-es6-d85a23f8e193

I have not dug into it in detail, but I worry especially about the
tremendous negative spikes in our JS performance for the
non-closure-compiled case; this suggests some kind of policy bug, eg,
discarding compiled code too soon (I know this has been discussed again
recently).

--lars

Boris Zbarsky

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Dec 19, 2018, 1:44:43 PM12/19/18
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On 12/18/18 11:38 PM, Lars Hansen wrote:
> I have not dug into it in detail, but I worry especially about the
> tremendous negative spikes in our JS performance for the
> non-closure-compiled case

I'm a bit concerned about the non-webasm performance here in general.
Is there a bug tracking this?

-Boris

Lars Hansen

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Dec 20, 2018, 9:37:08 AM12/20/18
to Boris Zbarsky, dev-tech-js-engine-internals
Somebody filed https://bugzilla.mozilla.org/show_bug.cgi?id=1515620.

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> -Boris
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