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runtime,runtime/metrics: export goroutine count as a metric

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For #37112.

Change-Id: I994dfe848605b95ef6aec24f53869e929247e987
Reviewed-on: https://go-review.googlesource.com/c/go/+/247049
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 2020-08-07 16:37:29 +00:00 • committed by Michael Knyszek
parent d39a89fd58
commit 80c6b92ecb
4 changed files with 18 additions and 0 deletions
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4
src/runtime/metrics_test.go
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@ -145,6 +145,10 @@ func TestReadMetricsConsistency(t *testing.T) {
for i := range h.Counts {
gc.pauses += h.Counts[i]
}
case "/sched/goroutines:goroutines":
if samples[i].Value.Uint64() < 1 {
t.Error("number of goroutines is less than one")
}
}
}
if totalVirtual.got != totalVirtual.want {