Rollup of 8 pull requests #99792

JohnTitor · 2022-07-27T02:53:00Z

Successful merges:

Stabilize Windows FileTypeExt with is_symlink_dir and is_symlink_file #98583 (Stabilize Windows FileTypeExt with is_symlink_dir and is_symlink_file)
Prefer visibility map parents that are not doc(hidden) first #99698 (Prefer visibility map parents that are not doc(hidden) first)
Add a clickable link to the layout section #99700 (Add a clickable link to the layout section)
passes: port more of check_attr module #99712 (passes: port more of check_attr module)
Remove dead code from cg_llvm #99759 (Remove dead code from cg_llvm)
Don't build std for *-uefi targets #99765 (Don't build std for *-uefi targets)
Update pulldown-cmark version to 0.9.2 (fixes url encoding for some chars) #99771 (Update pulldown-cmark version to 0.9.2 (fixes url encoding for some chars))
rustdoc: do not allocate String when writing path full name #99775 (rustdoc: do not allocate String when writing path full name)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

…_file` These calls allow detecting whether a symlink is a file or a directory, a distinction Windows maintains, and one important to software that wants to do further operations on the symlink (e.g. removing it).

…hods

Signed-off-by: David Wood <[email protected]>

Co-authored-by: Guillaume Gomez <[email protected]>

rust-lang#97322

No idea if this makes any perf difference, but it just seems like premature pessimisation to use String when str will do.

…ink-types, r=thomcc Stabilize Windows `FileTypeExt` with `is_symlink_dir` and `is_symlink_file` These calls allow detecting whether a symlink is a file or a directory, a distinction Windows maintains, and one important to software that wants to do further operations on the symlink (e.g. removing it).

…gillot Prefer visibility map parents that are not `doc(hidden)` first Far simpler approach to rust-lang#98876. This only fixes the case where the parent is `doc(hidden)`, not where the child is `doc(hidden)` since I don't know how to get the attrs on the import statement given a `ModChild`... I'll try to follow up with that, but this is a good first step.

…llaumeGomez Add a clickable link to the layout section The layout section (activated by `--show-type-layout`) is currently not linkable to (outside of chrome's link to text feature). This PR makes it linkable via `#layout`.

…s-2, r=compiler-errors passes: port more of `check_attr` module Continues from rust-lang#99213. Port more diagnostics in `rustc_passes::check_attr` to using the diagnostic derive and translation machinery. r? `@compiler-errors`

Remove dead code from cg_llvm Found while working on rust-lang#97485

…std-build, r=jyn514 Don't build std for *-uefi targets rust-lang#97322

…k, r=Urgau Update pulldown-cmark version to 0.9.2 (fixes url encoding for some chars) Fixes rust-lang#97125. r? ``@Dylan-DPC``

rustdoc: do not allocate String when writing path full name No idea if this makes any perf difference, but it just seems like premature pessimisation to use String when str will do.

JohnTitor · 2022-07-27T02:53:16Z

@bors r+ rollup=never p=8

bors · 2022-07-27T02:53:18Z

📌 Commit 0d5bdca has been approved by JohnTitor

It is now in the queue for this repository.

bors · 2022-07-27T04:18:59Z

⌛ Testing commit 0d5bdca with merge e33cc71...

bors · 2022-07-27T06:59:45Z

☀️ Test successful - checks-actions
Approved by: JohnTitor
Pushing e33cc71 to master...

rust-timer · 2022-07-27T08:15:11Z

Finished benchmarking commit (e33cc71): comparison url.

Instruction count

Primary benchmarks: 😿 relevant regressions found
Secondary benchmarks: 😿 relevant regressions found

	mean¹	max	count²
Regressions 😿 (primary)	0.5%	0.8%	9
Regressions 😿 (secondary)	1.8%	2.9%	6
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	0.5%	0.8%	9

Max RSS (memory usage)

Results

Primary benchmarks: 😿 relevant regressions found
Secondary benchmarks: mixed results

	mean¹	max	count²
Regressions 😿 (primary)	1.3%	1.5%	2
Regressions 😿 (secondary)	3.0%	3.2%	3
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	-2.0%	-2.0%	1
All 😿🎉 (primary)	1.3%	1.5%	2

Cycles

Results

Primary benchmarks: 😿 relevant regression found
Secondary benchmarks: mixed results

	mean¹	max	count²
Regressions 😿 (primary)	2.3%	2.3%	1
Regressions 😿 (secondary)	2.7%	3.6%	6
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	-2.7%	-2.7%	1
All 😿🎉 (primary)	2.3%	2.3%	1

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression

the arithmetic mean of the percent change ↩ ↩² ↩³
number of relevant changes ↩ ↩² ↩³

pnkfelix · 2022-07-27T19:13:44Z

Primary regressions were to clap (check full, check incr-full, and doc full), libc (doc full), hyper (check full, check incr-full, and doc full), image (doc full), and webrender (doc full).
The significance factor points mostly to the clap cases (with 4.13x, 3.25x, and 7.15x respectively to each of the scenarios I listed above for clap).
The detailed query data for clap check full indicates that the problem is mostly in metadata_decode_entry_item_attrs and visible_parent_map; those are the ones that had a significant time delta that end up explaining the overall time delta (0.003 + 0.003 > 0.005).
visible_parent_map slowdown may be due to PR Prefer visibility map parents that are not doc(hidden) first #99698.
The slowdown to metadata_decode_entry_Item_attrs may be due to PR passes: port more of check_attr module #99712? Hard to say.
The secondary regressions are all to the projection-caching benchmark, which regressed by 1.2% to 2.9% in various scenarios. That regression seems to be to due a combination of both the metadata_decode_entry_item_attrs and visible_parent_map regressions, as well as a little bit more time spent in type_op_prove_predicate, evaluate_obligation, and normalize_projection_ty. Not sure why though, I don't think those got touched by this rollup. Maybe just different execution paths from the stdlib changes that did come in with this rollup?
Leaving comments on both the rollup PR and the two suspect PRs from the rollup. Not marking as triaged.

compiler-errors · 2022-07-27T19:40:02Z

Opened #99819 to test perf results. I wouldn't be surprised if #99698 is the reason for both metadata_decode_entry_item_attrs and visible_parent_map regressions.

compiler-errors · 2022-08-03T07:18:38Z

Bumping this again: #99819 shows that #99698 is the culprit for the regression. I can revert the original PR if needed.

joshtriplett and others added 19 commits June 27, 2022 09:42

Stabilize Windows FileTypeExt with is_symlink_dir and `is_symlink…

e374c91

…_file` These calls allow detecting whether a symlink is a file or a directory, a distinction Windows maintains, and one important to software that wants to do further operations on the symlink (e.g. removing it).

Seal Windows FileTypeExt extension trait to allow adding future met…

a4cb0b9

…hods

Add failing test

6d1100f

Do not prefer module parents which are doc(hidden) in visibility map

42a4419

passes: port more of check_attr module

76cf6bd

Signed-off-by: David Wood <[email protected]>

Add a clickable link to the layout section

5fcd2f7

Simplify test

15db418

Co-authored-by: Guillaume Gomez <[email protected]>

Remove dead code from cg_llvm

017e172

Don't build std for *-uefi targets

05c1a4a

rust-lang#97322

Update pulldown-cmark version

7f78a9a

rustdoc: do not allocate String when writing path full name

b8fb6e1

No idea if this makes any perf difference, but it just seems like premature pessimisation to use String when str will do.

Rollup merge of rust-lang#99759 - bjorn3:remove_llvm_dead_code, r=nikic

7f608e9

Remove dead code from cg_llvm Found while working on rust-lang#97485

Rollup merge of rust-lang#99765 - nicholasbishop:bishop-disable-uefi-…

a76f2fe

…std-build, r=jyn514 Don't build std for *-uefi targets rust-lang#97322

Rollup merge of rust-lang#99771 - GuillaumeGomez:update-pulldown-cmar…

f8f07de

…k, r=Urgau Update pulldown-cmark version to 0.9.2 (fixes url encoding for some chars) Fixes rust-lang#97125. r? ``@Dylan-DPC``

Rollup merge of rust-lang#99775 - notriddle:notriddle/as-str, r=camelid

0d5bdca

rustdoc: do not allocate String when writing path full name No idea if this makes any perf difference, but it just seems like premature pessimisation to use String when str will do.

bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 27, 2022

bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 27, 2022

bors merged commit e33cc71 into rust-lang:master Jul 27, 2022

rustbot added this to the 1.64.0 milestone Jul 27, 2022

rustbot added the perf-regression Performance regression. label Jul 27, 2022

This was referenced Jul 27, 2022

Prefer visibility map parents that are not doc(hidden) first #99698

Merged

passes: port more of check_attr module #99712

Merged

JohnTitor deleted the rollup-20i7ewx branch July 27, 2022 21:15

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Rollup of 8 pull requests #99792

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