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Improve Expression.Lambda<TDelegate> performance#32768

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cston merged 1 commit intodotnet:masterfrom
vchirikov:expression-lambda-regression-issue
Feb 25, 2020
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Improve Expression.Lambda<TDelegate> performance#32768
cston merged 1 commit intodotnet:masterfrom
vchirikov:expression-lambda-regression-issue

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@vchirikov vchirikov commented Feb 24, 2020 •
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Unnecessary cache call in Expression.Lambda
(with reflection in worst scenario) has been removed.

Fix #32767

BenchmarkDotNet=v0.12.0, OS=Windows 10.0.18363
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET Core SDK=5.0.100-preview.2.20120.11
  [Host]     : .NET Core 5.0.0 (CoreCLR 5.0.20.11909, CoreFX 5.0.20.11909), X64 RyuJIT
  Job-OOGNGR : .NET Core 5.0.0 (CoreCLR 42.42.42.42424, CoreFX 42.42.42.42424), X64 RyuJIT
  Job-ZDXXHT : .NET Core 5.0.0 (CoreCLR 42.42.42.42424, CoreFX 42.42.42.42424), X64 RyuJIT
  Job-AZQMMA : .NET Framework 4.8 (4.8.4121.0), X64 RyuJIT
  Job-MHZNLL : .NET Core 5.0.0 (CoreCLR 42.42.42.42424, CoreFX 42.42.42.42424), X64 RyuJIT
  Job-THTYGA : .NET Core 5.0.0 (CoreCLR 42.42.42.42424, CoreFX 42.42.42.42424), X64 RyuJIT

Server=True  InvocationCount=1  IterationCount=1  
LaunchCount=1  RunStrategy=ColdStart  UnrollFactor=1  
WarmupCount=1
Method EnvironmentVariables Toolchain Mean Error Min Max Ratio Gen 0 Gen 1 Gen 2 Allocated Allocated native memory Native memory leak
Expression_Lambda_TDelegate COMPlus_TieredCompilation=0 netcoreapp50 905.8 ms NA 905.8 ms 905.8 ms 1.97 20000.0000 1000.0000 - 164.21 MB 1.13 MB 0 MB
Expression_Lambda_TDelegate COMPlus_TieredCompilation=0 netcoreapp50_vchirikov 172.6 ms NA 172.6 ms 172.6 ms 0.38 11000.0000 - - 94.58 MB 0.62 MB 0 MB
Expression_Lambda_TDelegate Empty net48 459.2 ms NA 459.2 ms 459.2 ms 1.00 143000.0000 - - 226.48 MB 0.43 MB 0.01 MB
Expression_Lambda_TDelegate Empty netcoreapp50 883.4 ms NA 883.4 ms 883.4 ms 1.92 20000.0000 1000.0000 - 164.14 MB 1.55 MB 0.22 MB
Expression_Lambda_TDelegate Empty netcoreapp50_vchirikov 202.2 ms NA 202.2 ms 202.2 ms 0.44 11000.0000 - - 94.73 MB 1.02 MB 0.22 MB

More information

Improve Expression.Lambda<TDelegate> performance
8d80b50 
Unnecessary cache call in Expression.Lambda<TDelegate>
(with reflection in worst scenario) has been removed.

Fix dotnet#32767
@vchirikov vchirikov mentioned this pull request Feb 24, 2020
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@karelz karelz requested review from 333fred and cston and removed request for karelz February 25, 2020 00:16
cston
cston approved these changes Feb 25, 2020
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Thanks @vchirikov. LGTM.

@cston cston requested a review from VSadov February 25, 2020 19:07
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LGTM
Thank you!!!

@cston cston merged commit 634b348 into dotnet:master Feb 25, 2020
cston added a commit to cston/corefx that referenced this pull request Feb 26, 2020
@cston
Improve Expression.Lambda<TDelegate> performance (dotnet/runtime#32768)
fce311e
@cston cston mentioned this pull request Feb 26, 2020
Closed
cston added a commit to cston/corefx that referenced this pull request Feb 26, 2020
@cston
Improve Expression.Lambda<TDelegate> performance (dotnet/runtime#32768)
3c292c3
cston added a commit to cston/corefx that referenced this pull request Feb 26, 2020
@cston
Improve Expression.Lambda<TDelegate> performance (dotnet/runtime#32768)
b311420
MichalStrehovsky added a commit to MichalStrehovsky/runtime that referenced this pull request Jun 26, 2020
@MichalStrehovsky
Fix bitrot in System.Linq.Expressions
dc53474 
System.Linq.Expressions is not getting compiled without FEATURE_COMPILE so it started rotting.

* Nullable annotations
* Fix break introduced in dotnet#32768
@MichalStrehovsky MichalStrehovsky mentioned this pull request Jun 26, 2020
Merged
stephentoub pushed a commit that referenced this pull request Jun 26, 2020
@MichalStrehovsky
Fix bitrot in System.Linq.Expressions (#38438)
a87ebc5 
System.Linq.Expressions is not getting compiled without FEATURE_COMPILE so it started rotting.

* Nullable annotations
* Fix break introduced in #32768
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@VSadov VSadov VSadov approved these changes

@stephentoub stephentoub Awaiting requested review from stephentoub

@333fred 333fred Awaiting requested review from 333fred

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@cston cston cston approved these changes

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Performance degradation of Expression.Lambda<TDelegate> in netcore

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@vchirikov @VSadov @cston @karelz