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runtime: Kubernetes performance regression with 1.14 #36752

@ianlancetaylor

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@ianlancetaylor

We are seeing a performance regression with 1.14 with a Kubernetes performance test. This is not necessarily a release blocker, but it needs investigation.

I'm adding this issue based on comments on golang-dev (https://groups.google.com/forum/#!topic/golang-dev/05KhuIiyrXs).

I don't really know whether the details are Google internal or not, but I'm going to replicate a few internal e-mails here analyzing the profiles (but the profiles themselves are not public information).

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    FrozenDueToAgeNeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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