[Merged by Bors] - Reduced the size of AST nodes #1821
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Razican
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performance
Razican
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jasonwilliams,
HalidOdat,
RageKnify,
raskad and
jedel1043
Test262 conformance changesVM implementation
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Codecov Report
@@ Coverage Diff @@
## main #1821 +/- ##
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- Coverage 55.73% 55.71% -0.02%
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Files 201 201
Lines 17326 17326
==========================================
- Hits 9656 9654 -2
- Misses 7670 7672 +2
Continue to review full report at Codecov.
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I'm actually pretty surprised that the benchmark are not clearly showing improvements, even though there might be some small ones. There is also one benchmark that shows a 18% worsening, which is worrying me. Maybe this is just due to the GitHub Actions uncertainty (no dedicated processing power, for instance). We should probably try to benchmark things locally or in a dedicated-core virtual server. |
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@Razican have you tried running the profiler and looking at before and after? That may give you a deeper insight into what is going on. https://github.com/boa-dev/boa/blob/main/docs/profiling.md |
I ran the profiler locally and didn't see much difference. Then I ran benchmarks, and I could clearly see a consistent 2-6% improvement in the parser and a consistent and clear 1-2% improvement in the execution. The compiler was having a 0-1% improvement, but it was not very clear. I also checked this "Array creation (Execution)" benchmark and got a 1.8% improvement locally, so that 18% worsening is definitely not real. |
RageKnify
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Feb 6, 2022
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Feb 6, 2022
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HalidOdat
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This PR boxes the `Try` and `TaggedTemplate` nodes reducing the size of the `Node` structure from 88 to 56 bytes. This should improve performance in most cases, by adding another indirection with code with `try` and templates.
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This PR boxes the
TryandTaggedTemplatenodes reducing the size of theNodestructure from 88 to 56 bytes. This should improve performance in most cases, by adding another indirection with code withtryand templates.