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Test failure: Interop\COM\Dynamic\Dynamic is very slow under GCStress #39584

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BruceForstall opened this issue Jul 18, 2020 · 2 comments
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Test failure: Interop\COM\Dynamic\Dynamic is very slow under GCStress #39584

BruceForstall opened this issue Jul 18, 2020 · 2 comments
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area-Interop-coreclr GCStress
Milestone
5.0.0

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@BruceForstall
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On Windows x64/x86, I measure about 2 minutes to run Interop\COM\Dynamic\Dynamic\Dynamic.cmd with:

set COMPlus_TieredCompilation=0
set COMPlus_GCStress=0xC

However, adding:

set COMPlus_HeapVerify=1

(which some of the scenarios in the gcstress-extra pipeline do) makes the test run a very long time (I gave up waiting for it to finish).
@Dotnet-GitSync-Bot Dotnet-GitSync-Bot added the untriaged New issue has not been triaged by the area owner label Jul 18, 2020
@BruceForstall
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e.g., https://dev.azure.com/dnceng/public/_build/results?buildId=726589&view=ms.vss-test-web.build-test-results-tab&runId=22500980&resultId=109452&paneView=debug

BruceForstall added a commit to BruceForstall/runtime that referenced this issue Jul 18, 2020
@BruceForstall
Disable Interop\COM\Dynamic\Dynamic under GCStress
13366b2 
Issue: dotnet#39584
@BruceForstall BruceForstall mentioned this issue Jul 18, 2020
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@AaronRobinsonMSFT AaronRobinsonMSFT removed the untriaged New issue has not been triaged by the area owner label Jul 18, 2020
@AaronRobinsonMSFT AaronRobinsonMSFT added this to the 5.0.0 milestone Jul 18, 2020
BruceForstall added a commit that referenced this issue Jul 18, 2020
@BruceForstall
Disable Interop\COM\Dynamic\Dynamic under GCStress (#39585)
16830d1 
Issue: #39584
@AaronRobinsonMSFT
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I don't think there is much in the way of making this faster in GCStress. Uses of the COM are slow under GCStress and uses of dynamic are also slow. The combination is simply an immense impact on the GCStress methodology. I am going to close for now.

Jacksondr5 pushed a commit to Jacksondr5/runtime that referenced this issue Aug 10, 2020
@BruceForstall @Jacksondr5
Disable Interop\COM\Dynamic\Dynamic under GCStress (dotnet#39585)
6764e6a 
Issue: dotnet#39584
@ghost ghost locked as resolved and limited conversation to collaborators Dec 8, 2020
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