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Updating perf for this week #1937

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Merged
merged 2 commits into from
Apr 14, 2021
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Updating perf for this week #1937

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Mark-Simulacrum Apr 13, 2021
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Mark-Simulacrum Apr 13, 2021
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10 changes: 3 additions & 7 deletions draft/2021-04-14-this-week-in-rust.md
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Expand Up @@ -139,16 +139,12 @@ If you are a Rust project owner and are looking for contributors, please submit

## Rust Compiler Performance Triage

A pretty major week for [memory usage improvements] with an average of ~20% gains on memory usage for
release builds, and 5% on check builds, due to an update in the default allocator
used (to a more recent jemalloc). Wall time performance remained largely unchanged over this week.
A very quiet week overall.

Triage done by **@simulacrum**.
Revision range: [4896450e..d32238](https://perf.rust-lang.org/?start=4896450e7e0a522486b4d3a8d360ac4e1d2072a0&end=d32238532138485c80db4f2cd596372bce214e00&absolute=false&stat=instructions%3Au)
Revision range: [d322385..5258a74](https://perf.rust-lang.org/?start=d32238532138485c80db4f2cd596372bce214e00&end=5258a74c887f8ae14717e1f98b652b470877ce4e&absolute=false&stat=instructions%3Au)

[memory usage improvements]: https://perf.rust-lang.org/?start=4896450e7e0a522486b4d3a8d360ac4e1d2072a0&end=d32238532138485c80db4f2cd596372bce214e00&absolute=false&stat=max-rss

1 Regressions, 4 Improvements, 0 Mixed
1 Regressions, 0 Improvements, 0 Mixed

## Approved RFCs

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