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Merged
jmschonfeld merged 4 commits into from
Aug 9, 2024
Merged

Enable WMO #832

jmschonfeld merged 4 commits into from
Aug 9, 2024

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@jmschonfeld jmschonfeld commented Aug 8, 2024 •
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This enables whole module optimization for FoundationEssentials and FoundationInternationalization for release builds. We've found that this added optimization results in a significant (up to 4x) performance improvement for JSONDecoder in our benchmarks:

----------------------------------------------------------------------------------------------------------------------------
Canada-decodeFromJSON metrics
----------------------------------------------------------------------------------------------------------------------------

╒══════════════════════════════════════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╕
│          Throughput (# / s) (K)          │      p0 │     p25 │     p50 │     p75 │     p90 │     p99 │    p100 │ Samples │
╞══════════════════════════════════════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╡
│                   main                   │       9 │       9 │       9 │       9 │       9 │       9 │       9 │      28 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                 main-wmo                 │      25 │      24 │      24 │      24 │      24 │      23 │      23 │      73 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                    Δ                     │      16 │      15 │      15 │      15 │      15 │      14 │      14 │      45 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│              Improvement %               │     178 │     167 │     167 │     167 │     167 │     156 │     156 │      45 │
╘══════════════════════════════════════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╛

----------------------------------------------------------------------------------------------------------------------------
Canada-encodeToJSON metrics
----------------------------------------------------------------------------------------------------------------------------

╒══════════════════════════════════════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╕
│          Throughput (# / s) (K)          │      p0 │     p25 │     p50 │     p75 │     p90 │     p99 │    p100 │ Samples │
╞══════════════════════════════════════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╡
│                   main                   │      11 │      11 │      11 │      11 │      10 │      10 │      10 │      32 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                 main-wmo                 │      14 │      14 │      14 │      14 │      14 │      13 │      13 │      42 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                    Δ                     │       3 │       3 │       3 │       3 │       4 │       3 │       3 │      10 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│              Improvement %               │      27 │      27 │      27 │      27 │      40 │      30 │      30 │      10 │
╘══════════════════════════════════════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╛

----------------------------------------------------------------------------------------------------------------------------
Twitter-decodeFromJSON metrics
----------------------------------------------------------------------------------------------------------------------------

╒══════════════════════════════════════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╕
│          Throughput (# / s) (K)          │      p0 │     p25 │     p50 │     p75 │     p90 │     p99 │    p100 │ Samples │
╞══════════════════════════════════════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╡
│                   main                   │      67 │      65 │      64 │      62 │      61 │      58 │      58 │     190 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                 main-wmo                 │     336 │     334 │     334 │     334 │     333 │     247 │     240 │     982 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                    Δ                     │     269 │     269 │     270 │     272 │     272 │     189 │     182 │     792 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│              Improvement %               │     401 │     414 │     422 │     439 │     446 │     326 │     314 │     792 │
╘══════════════════════════════════════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╛

----------------------------------------------------------------------------------------------------------------------------
Twitter-encodeToJSON metrics
----------------------------------------------------------------------------------------------------------------------------

╒══════════════════════════════════════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╤═════════╕
│          Throughput (# / s) (K)          │      p0 │     p25 │     p50 │     p75 │     p90 │     p99 │    p100 │ Samples │
╞══════════════════════════════════════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╪═════════╡
│                   main                   │     301 │     289 │     286 │     278 │     251 │     220 │     202 │     830 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                 main-wmo                 │     379 │     369 │     366 │     360 │     356 │     278 │     267 │    1078 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│                    Δ                     │      78 │      80 │      80 │      82 │     105 │      58 │      65 │     248 │
├──────────────────────────────────────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│              Improvement %               │      26 │      28 │      28 │      29 │      42 │      26 │      32 │     248 │
╘══════════════════════════════════════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╧═════════╛

@jmschonfeld jmschonfeld mentioned this pull request Aug 8, 2024
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@jmschonfeld jmschonfeld marked this pull request as ready for review August 8, 2024 17:56
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jmschonfeld commented Aug 8, 2024

@swift-ci please test

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🏎️

etcwilde
etcwilde reviewed Aug 8, 2024
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jmschonfeld commented Aug 8, 2024

@swift-ci please test

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jmschonfeld commented Aug 9, 2024

@swift-ci please test

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jmschonfeld commented Aug 9, 2024

@swift-ci please test Windows platform

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glessard commented Aug 9, 2024 •
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The only test failure is this:

Test Case 'ProcessInfoTests.testProcessName' started at 2024-08-09 18:13:47.828

C:\source\swift-foundation\Tests\FoundationEssentialsTests\ProcessInfoTests.swift:181: error: ProcessInfoTests.testProcessName : XCTAssertEqual failed: ("C:\source\swift-foundation\.build\x86_64-unknown-windows-msvc\debug\swift-foundationPackageTests.xctest") is not equal to ("swift-foundationPackageTests.xctest") -

...and is not related to this change.

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jmschonfeld commented Aug 9, 2024

Yeah @iCharlesHu is fixing that with #839

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jmschonfeld commented Aug 9, 2024

@swift-ci please test

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jmschonfeld commented Aug 9, 2024

@swift-ci please test

@jmschonfeld jmschonfeld merged commit 8f26c08 into swiftlang:main Aug 9, 2024
@jmschonfeld jmschonfeld deleted the wmo branch August 9, 2024 21:54
jmschonfeld added a commit to jmschonfeld/swift-foundation that referenced this pull request Aug 9, 2024
@jmschonfeld
Enable WMO (swiftlang#832)
ce8ceaa 
* Enable whole-module-optimization in release builds

* Address feedback

* Fix build failures

* Don't enable WMO on Windows
@jmschonfeld jmschonfeld mentioned this pull request Aug 9, 2024
Merged
jmschonfeld added a commit that referenced this pull request Aug 10, 2024
@jmschonfeld
Enable WMO (#832) (#841)
1b79d86
cthielen pushed a commit to cthielen/swift-foundation that referenced this pull request Nov 8, 2024
@jmschonfeld @cthielen
Enable WMO (swiftlang#832)
fe55404 
* Enable whole-module-optimization in release builds

* Address feedback

* Fix build failures

* Don't enable WMO on Windows
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@glessard glessard glessard approved these changes

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