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| author | Rick Hudson <rlh@golang.org> | 2015-04-28 09:07:51 -0400 |
|---|---|---|
| committer | Rick Hudson <rlh@golang.org> | 2015-05-04 17:38:58 +0000 |
| commit | b86e71f5aae4bd2cd2b1010e1c57909c068178cc (patch) | |
| tree | db95d67bffad17ecb077b5aa6b36f01e563877e9 /src/runtime/malloc.go | |
| parent | b79db4f2fd76cf1d8ce58144fc609a08ab5dd7b3 (diff) | |
| download | go-b86e71f5aae4bd2cd2b1010e1c57909c068178cc.tar.xz | |
runtime: Reduce calls to shouldtriggergc
shouldtriggergc is slightly expensive due to the call overhead
and the use of an atomic. This CL reduces the number of time
one checks if a GC should be done from one at each allocation
to once when a span is allocated. Since shouldtriggergc is an
important abstraction simply hand inlining it, along with its
atomic instruction would lose the abstraction.
Change-Id: Ia3210655b4b3d433f77064a21ecb54e4d9d435f7
Reviewed-on: https://go-review.googlesource.com/9403
Reviewed-by: Austin Clements <austin@google.com>
Diffstat (limited to 'src/runtime/malloc.go')
| -rw-r--r-- | src/runtime/malloc.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go index 91d69b5a9b..22ad6b581f 100644 --- a/src/runtime/malloc.go +++ b/src/runtime/malloc.go @@ -684,7 +684,7 @@ func mallocgc(size uintptr, typ *_type, flags uint32) unsafe.Pointer { } } - if shouldtriggergc() { + if shouldhelpgc && shouldtriggergc() { startGC(gcBackgroundMode) } else if gcBlackenEnabled != 0 { // Assist garbage collector. We delay this until the |