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dsymeKevinRansomcartermpdotnet-botvzarytovskii
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[RFC FS-1087, FS-1097, FS-1098] tasks, resumable state machines, inline on parameters (#6811)
* Move existing Compiler.ComponentTests to a new Compiler.fs framework (#9839) (#9847) * Move existing Compiler.ComponentTests to a new Compiler.fs framework; Add 'parse' function * Changed some wording in error messages Co-authored-by: Vlad Zarytovskii <[email protected]> * fix build * fix order of diagnostics * update baselines * Delete FSharp.Compiler.Service.fsproj * fix comments * fix comments * fix build * fix build * Reduce number of typeEquiv checks (#10324) (#10374) Co-authored-by: Steffen Forkmann <[email protected]> * xlf * fix build * fix build * fix build * fix build * fix list and array builder perf * better perf testing * better perf testing * better perf testing * update baselines * work on taskSeq { ... } * remove old file * enable all benchmarks * update benchmarks * update baseline * static checking of resumable code * static checking of resumable code * fix build * fix build * fix build * fix build * fix build * fix build * fix baseline * try fix stack overflow * fix up tests * add some negative testing, simplify implementation * fix up tests * fix baseline * fix test and add negative baselines * rename intrinsic and add test for seq case * fix build * fix and rename test * fix test * improve debugging * improve debugging of try/with and try/finally * fix baseline * infer resumable code from single attribute on delegate type * update samples * inline if lambda * update baselines * fix check * delegate and computed function reductions for inlined code * update baselines * update baselines * update test * fix test that failed randomly due to inexact floating point * add tests for generated IL * update tests * don't use InlineIfLambda on sumBy and averageBy due to slight floating point changes * add ability for struct machines to implement additional interfaces (needed for low allocation co-routines) * add coroutines * update baselines * resumable code combinators and tailcalls for coroutines * fix baselinhe * make tasks using shared resumable code combinators the default. Also testing and fixes for dynamic execution of resumable code * update baselines * suppress warning in FSharp.Core * suppress warning in FSharp.Core * fix build * fix build * fix build * update test * only struct state machines * codegen IResumableStateMachine * update baselines * update baselines * notes on sample * fix build * Update coroutine.fs * Negative testing following spec for compilability. Additional testing for dynamic implementation of tasks * simpler coroutine sample, fix build * update baselines * remove unused state vars from internal represenation of object expressions * add coroutine example * update perf benchmarks * remove old files * code cleanup * add compilergenerated attribute, add async2 approximate implementation * test async perf w.r.t. previous compiler, add test for reduced stack trace * using on IAsyncDisposable * remove dynamic Awaiter field from tasks * update surface area * add backgroundTask { ... } * surface area test only for decalred members etc. * fix test * add dynamic tests for backgroundTask * fix codegen bug * fix build * simplify SRTP use in task.fs/fsi * fix build and baselines * fix build * fix build * fix build * fix pacakge * remove RFC FS-1099 from this PR * remove RFC FS-1099 from this PR * backgroundTask only switches to background if necessary * Update tasks.fs * fix test * clear sync context for test * clear sync context for test * update baseline * code review * fix build * fix build * fix clearing state machines * fix to clearing code * improve generated task code and debugging * only update baselines on failure * fix some cases of debug stepping, improve isnull codegen, add more tests * move TaskPerf to benchmarks directory * fix baseline * only update baselines when things changed * fix baselines * update baselines * fix baselines * fix build * fix some tests, add hard error on language version check * reset unchanged files * update baselines * update baselines * fix baseline * fix comparer * flags * Revert "flags" This reverts commit 5b2a011. * fix merge * fix build * fix build * fix build * update baseline * fix build * fix build * update baseline * fix baselines * update baseline * fix build * fix build * update baseline * fix test * code review changes Co-authored-by: Kevin Ransom (msft) <[email protected]> Co-authored-by: Phillip Carter <[email protected]> Co-authored-by: dotnet bot <[email protected]> Co-authored-by: Vlad Zarytovskii <[email protected]> Co-authored-by: Don Syme <[email protected]> Co-authored-by: Steffen Forkmann <[email protected]> Co-authored-by: Brett V. Forsgren <[email protected]>
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‎BenchmarkDotNet.Artifacts/results/TaskPerf.Benchmarks-report-github.md

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``` ini
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BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19042
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Intel Xeon CPU E5-1620 0 3.60GHz, 1 CPU, 8 logical and 4 physical cores
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.NET Core SDK=5.0.104
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[Host] : .NET Core 5.0.6 (CoreCLR 5.0.621.22011, CoreFX 5.0.621.22011), X64 RyuJIT DEBUG
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DefaultJob : .NET Core 5.0.6 (CoreCLR 5.0.621.22011, CoreFX 5.0.621.22011), X64 RyuJIT
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```
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| Method | Categories | Mean | Error | StdDev | Median | Ratio | RatioSD | Gen 0 | Gen 1 | Gen 2 | Allocated |
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|-------------------------------------------- |----------------------- |---------------:|--------------:|--------------:|---------------:|-------:|--------:|-----------:|--------:|------:|------------:|
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| ManyWriteFile_CSharpTasks | ManyWriteFile | 4,186.6 μs | 81.32 μs | 201.00 μs | 4,187.4 μs | 1.00 | 0.00 | 15.6250 | - | - | 117288 B |
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| ManyWriteFile_taskBuilder | ManyWriteFile | 5,744.5 μs | 124.34 μs | 356.76 μs | 5,712.3 μs | 1.38 | 0.11 | 62.5000 | - | - | 444882 B |
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| ManyWriteFile_async | ManyWriteFile | 6,108.8 μs | 121.27 μs | 271.23 μs | 6,132.1 μs | 1.46 | 0.10 | 132.8125 | - | - | 704991 B |
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| ManyWriteFile_task | ManyWriteFile | 5,014.3 μs | 100.18 μs | 204.65 μs | 4,973.0 μs | 1.19 | 0.07 | 15.6250 | - | - | 116996 B |
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| ManyWriteFile_async2 | ManyWriteFile | 5,358.4 μs | 106.05 μs | 211.79 μs | 5,374.1 μs | 1.27 | 0.07 | 15.6250 | - | - | 117140 B |
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| | | | | | | | | | | | |
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| NonAsyncBinds_CSharpTasks | NonAsyncBinds | 17,444.8 μs | 374.32 μs | 1,097.80 μs | 17,030.4 μs | 1.00 | 0.00 | 15125.0000 | - | - | 79200000 B |
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| NonAsyncBinds_taskBuilder | NonAsyncBinds | 26,000.1 μs | 440.68 μs | 880.09 μs | 25,621.3 μs | 1.47 | 0.09 | 22187.5000 | - | - | 116000000 B |
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| NonAsyncBinds_async | NonAsyncBinds | 1,303,920.2 μs | 63,453.67 μs | 177,930.90 μs | 1,269,891.9 μs | 74.52 | 10.59 | 52000.0000 | - | - | 276000000 B |
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| NonAsyncBinds_async2 | NonAsyncBinds | 24,213.0 μs | 191.23 μs | 178.88 μs | 24,168.6 μs | 1.38 | 0.09 | 18812.5000 | 62.5000 | - | 98400000 B |
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| NonAsyncBinds_task | NonAsyncBinds | 16,693.5 μs | 302.84 μs | 759.75 μs | 16,586.1 μs | 0.95 | 0.07 | 15125.0000 | - | - | 79200000 B |
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| | | | | | | | | | | | |
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| AsyncBinds_CSharpTasks | AsyncBinds | 8,335.4 μs | 190.47 μs | 558.61 μs | 8,197.5 μs | 1.00 | 0.00 | 15.6250 | - | - | 112119 B |
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| AsyncBinds_taskBuilder | AsyncBinds | 11,567.6 μs | 229.28 μs | 522.18 μs | 11,360.0 μs | 1.39 | 0.12 | 296.8750 | - | - | 1559252 B |
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| AsyncBinds_async | AsyncBinds | 127,872.2 μs | 3,090.27 μs | 8,866.56 μs | 127,900.8 μs | 15.38 | 1.47 | 1333.3333 | - | - | 8312000 B |
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| AsyncBinds_task | AsyncBinds | 9,897.9 μs | 314.55 μs | 927.46 μs | 10,058.4 μs | 1.19 | 0.15 | 31.2500 | - | - | 192096 B |
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| AsyncBinds_async2 | AsyncBinds | 8,165.2 μs | 156.64 μs | 347.09 μs | 8,051.9 μs | 0.98 | 0.07 | 62.5000 | - | - | 352218 B |
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| | | | | | | | | | | | |
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| SingleSyncTask_CSharpTasks | SingleSyncTask | 8,668.5 μs | 170.65 μs | 233.59 μs | 8,595.4 μs | 1.00 | 0.00 | - | - | - | - |
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| SingleSyncTask_taskBuilder | SingleSyncTask | 12,402.4 μs | 103.89 μs | 92.10 μs | 12,366.7 μs | 1.43 | 0.04 | 9171.8750 | - | - | 48000000 B |
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| SingleSyncTask_async | SingleSyncTask | 3,659,569.1 μs | 109,062.88 μs | 298,557.86 μs | 3,576,228.4 μs | 409.11 | 38.68 | 91000.0000 | - | - | 475999216 B |
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| SingleSyncTask_task | SingleSyncTask | 10,642.1 μs | 90.05 μs | 84.23 μs | 10,622.2 μs | 1.23 | 0.04 | - | - | - | - |
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| SingleSyncTask_async2 | SingleSyncTask | 28,177.5 μs | 263.90 μs | 220.37 μs | 28,134.6 μs | 3.25 | 0.08 | 7625.0000 | - | - | 40000000 B |
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| | | | | | | | | | | | |
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| SyncBuilderLoop_NormalCode | sync | 81,206.3 μs | 1,598.95 μs | 1,570.38 μs | 80,813.7 μs | 1.00 | 0.00 | 36714.2857 | - | - | 192176000 B |
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| SyncBuilderLoop_WorkflowCode | sync | 81,811.3 μs | 1,610.38 μs | 3,140.93 μs | 80,621.9 μs | 1.02 | 0.05 | 36714.2857 | - | - | 192176000 B |
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| TinyVariableSizedList_Builtin | TinyVariableSizedList | 57,762.3 μs | 1,721.40 μs | 4,827.00 μs | 56,313.5 μs | 1.00 | 0.00 | 20375.0000 | - | - | 106666656 B |
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| TinyVariableSizedList_NewBuilder | TinyVariableSizedList | 17,122.1 μs | 341.76 μs | 650.23 μs | 17,233.0 μs | 0.29 | 0.03 | 2031.2500 | - | - | 10666656 B |
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| | | | | | | | | | | | |
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| VariableSizedList_Builtin | VariableSizedList | 330,273.8 μs | 6,534.98 μs | 13,051.05 μs | 328,659.3 μs | 1.00 | 0.00 | 63000.0000 | - | - | 330666624 B |
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| VariableSizedList_NewBuilder | VariableSizedList | 167,451.6 μs | 2,840.89 μs | 2,217.98 μs | 167,326.7 μs | 0.51 | 0.02 | 44750.0000 | - | - | 234666934 B |
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| | | | | | | | | | | | |
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| FixedSizeList_Builtin | FixedSizedList | 100,128.5 μs | 1,968.29 μs | 3,885.21 μs | 100,084.8 μs | 1.00 | 0.00 | 61166.6667 | - | - | 320000000 B |
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| FixedSizeList_NewBuilder | FixedSizedList | 229,639.0 μs | 4,589.37 μs | 11,846.63 μs | 227,278.1 μs | 2.30 | 0.13 | 61000.0000 | - | - | 320000000 B |
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| TinyVariableSizedArray_Builtin | TinyVariableSizedArray | 100,414.3 μs | 1,995.07 μs | 4,462.26 μs | 100,631.3 μs | 1.00 | 0.00 | 30000.0000 | - | - | 157333304 B |
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| TinyVariableSizedArray_NewBuilder | TinyVariableSizedArray | 28,538.5 μs | 632.86 μs | 1,825.93 μs | 28,426.7 μs | 0.29 | 0.02 | 10687.5000 | - | - | 55999968 B |
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| VariableSizedArray_Builtin | VariableSizedArray | 356,489.5 μs | 3,061.89 μs | 2,714.29 μs | 356,174.5 μs | 1.00 | 0.00 | 77000.0000 | - | - | 405333840 B |
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| VariableSizedArray_NewBuilder | VariableSizedArray | 161,909.3 μs | 861.02 μs | 672.23 μs | 161,860.8 μs | 0.45 | 0.00 | 59000.0000 | - | - | 309333476 B |
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| FixedSizeArray_Builtin | FixedSizedArray | 32,944.8 μs | 777.85 μs | 2,293.52 μs | 32,391.8 μs | 1.00 | 0.00 | 19875.0000 | - | - | 104000000 B |
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| FixedSizeArray_NewBuilder | FixedSizedArray | 219,352.6 μs | 4,288.40 μs | 10,837.34 μs | 217,830.4 μs | 6.65 | 0.60 | 82333.3333 | - | - | 432000000 B |
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| MultiStepOption_OldBuilder | MultiStepOption | 63,360.5 μs | 1,199.04 μs | 1,062.92 μs | 63,133.5 μs | 1.00 | 0.00 | 38750.0000 | - | - | 202666703 B |
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| MultiStepOption_NewBuilder | MultiStepOption | 20,179.8 μs | 622.44 μs | 1,775.86 μs | 19,705.5 μs | 0.29 | 0.02 | 13437.5000 | - | - | 70399968 B |
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| MultiStepOption_NoBuilder | MultiStepOption | 19,727.8 μs | 469.72 μs | 1,362.75 μs | 19,395.3 μs | 0.32 | 0.02 | 13437.5000 | - | - | 70399968 B |
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| MultiStepValueOption_OldBuilder | MultiStepValueOption | 47,237.3 μs | 909.93 μs | 759.83 μs | 47,211.0 μs | 1.00 | 0.00 | 19090.9091 | - | - | 100266664 B |
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| MultiStepValueOption_NewBuilder | MultiStepValueOption | 4,144.6 μs | 46.31 μs | 43.32 μs | 4,146.1 μs | 0.09 | 0.00 | - | - | - | - |
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| MultiStepValueOption_NoBuilder | MultiStepValueOption | 3,824.0 μs | 75.26 μs | 73.92 μs | 3,806.3 μs | 0.08 | 0.00 | - | - | - | - |
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| NestedForLoops_taskSeqUsingRawResumableCode | taskSeq | 983.7 μs | 18.23 μs | 17.90 μs | 984.7 μs | 1.61 | 0.04 | 54.6875 | - | - | 295641 B |
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| NestedForLoops_CSharpAsyncEnumerable | taskSeq | 612.9 μs | 10.04 μs | 8.90 μs | 615.5 μs | 1.00 | 0.00 | 24.4141 | - | - | 131280 B |

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