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runtime,runtime/metrics: add metric for distribution of GC pauses

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For #37112.

Change-Id: Ibb0425c9c582ae3da3b2662d5bbe830d7df9079c
Reviewed-on: https://go-review.googlesource.com/c/go/+/247047
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
This commit is contained in:
Michael Anthony Knyszek 2020-08-06 21:59:13 +00:00 • committed by Michael Knyszek
parent 36c5edd8d9
commit d39a89fd58
6 changed files with 54 additions and 0 deletions
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5
src/runtime/metrics/description.go
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@ -88,6 +88,11 @@ var allDesc = []Description{
Description: "Number of objects, live or unswept, occupying heap memory.",
Kind: KindUint64,
},
{
Name: "/gc/pauses:seconds",
Description: "Distribution individual GC-related stop-the-world pause latencies.",
Kind: KindFloat64Histogram,
},
{
Name: "/memory/classes/heap/free:bytes",
Description: "Memory that is available for allocation, and may be returned to the underlying system.",