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runtime: extend ReadMemStatsSlow to re-compute HeapReleased

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This change extends the test function ReadMemStatsSlow to re-compute
the HeapReleased statistic such that it is checked in testing to be
consistent with the bookkeeping done in the runtime.

Change-Id: I49f5c2620f5731edea8e9f768744cf997dcd7c22
Reviewed-on: https://go-review.googlesource.com/c/142397
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Michael Anthony Knyszek 2018-10-15 23:00:58 +00:00 committed by Michael Knyszek
parent 78bb91cbd3
commit 61d40c8abc
1 changed files with 5 additions and 0 deletions
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5
src/runtime/export_test.go
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@ -297,6 +297,7 @@ func ReadMemStatsSlow() (base, slow MemStats) {
slow.TotalAlloc = 0
slow.Mallocs = 0
slow.Frees = 0
slow.HeapReleased = 0
var bySize [_NumSizeClasses]struct {
Mallocs, Frees uint64
}
@ -336,6 +337,10 @@ func ReadMemStatsSlow() (base, slow MemStats) {
slow.BySize[i].Frees = bySize[i].Frees
}
mheap_.scav.treap.walkTreap(func(tn *treapNode) {
slow.HeapReleased += uint64(tn.spanKey.released())
})
getg().m.mallocing--
})