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Fix perf regression in gotodef. #19539

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merged 5 commits into from
May 17, 2017

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@Pilchie Pilchie left a comment

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❤️ the comment.

@CyrusNajmabadi
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CyrusNajmabadi commented May 16, 2017

Tagging @MattGertz

Customer scenario

Perf of goto-def added several dozen ms in one of our RPS tests.

Bugs this fixes:

https://devdiv.visualstudio.com/0bdbc590-a062-4c3f-b0f6-9383f67865ee/_workitems?id=433771&projectId=0bdbc590-a062-4c3f-b0f6-9383f67865ee&src=WorkItemMention&src-action=artifact_link&fullScreen=true&_a=edit

Workarounds, if any

None.

Risk

Low.

Performance impact

Perf is improved.

Is this a regression from a previous update?

Yes.

Root cause analysis:

Work to make our system better handle OOP (by computing more information up front), ended up hurting a non-OOP scenario.

How was the bug found?

RPS test.

@CyrusNajmabadi
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retest windows_debug_vs-integration_prtest please

@CyrusNajmabadi
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retest windows_release_vs-integration_prtest please

@AdamSpeight2008
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@CyrusNajmabadi Loving the comments in the code.

@CyrusNajmabadi
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retest this please

@CyrusNajmabadi
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retest windows_release_vs-integration_prtest please

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@CyrusNajmabadi
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retest windows_release_vs-integration_prtest please

@CyrusNajmabadi
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retest windows_debug_vs-integration_prtest please

@CyrusNajmabadi CyrusNajmabadi merged commit 3fb20b5 into dotnet:master May 17, 2017
@CyrusNajmabadi CyrusNajmabadi deleted the gotodefPerf branch May 17, 2017 19:35
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6 participants