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runtime: remove unused gcstats

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The gcstats structure is no longer consumed by anything and no longer
tracks statistics that are particularly relevant to the concurrent
garbage collector. Remove it. (Having statistics is probably a good
idea, but these aren't the stats we need these days and we don't have
a way to get them out of the runtime.)

In preparation for #13613.

Change-Id: Ib63e2f9067850668f9dcbfd4ed89aab4a6622c3f
Reviewed-on: https://go-review.googlesource.com/34936
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Rick Hudson <rlh@golang.org>
This commit is contained in:
Austin Clements 2016-12-22 17:45:55 -07:00
parent 7523baed09
commit 3399fd254d
4 changed files with 3 additions and 35 deletions
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2
src/runtime/heapdump.go
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@ -653,7 +653,7 @@ func writeheapdump_m(fd uintptr) {
// Update stats so we can dump them.
// As a side effect, flushes all the MCaches so the MSpan.freelist
// lists contain all the free objects.
updatememstats(nil)
updatememstats()
// Set dump file.
dumpfd = fd