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runtime: make mcache.local_cachealloc a uintptr

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This field used to decrease with sweeps (and potentially go
negative). Now it is always zero or positive, so change it to a
uintptr so it meshes better with other memory stats.

Change-Id: I6a50a956ddc6077eeaf92011c51743cb69540a3c
Reviewed-on: https://go-review.googlesource.com/8899
Reviewed-by: Rick Hudson <rlh@golang.org>
This commit is contained in:
Austin Clements 2015-04-13 17:06:22 -04:00
parent a0452a6821
commit 91c80ce6c7
2 changed files with 3 additions and 3 deletions
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2
src/runtime/malloc.go
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@ -623,7 +623,7 @@ func mallocgc(size uintptr, typ *_type, flags uint32) unsafe.Pointer {
} }
} }
} }
c.local_cachealloc += intptr(size) c.local_cachealloc += size
} else { } else {
var s *mspan var s *mspan
shouldhelpgc = true shouldhelpgc = true

2
src/runtime/mcache.go
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@ -12,7 +12,7 @@ type mcache struct {
// The following members are accessed on every malloc, // The following members are accessed on every malloc,
// so they are grouped here for better caching. // so they are grouped here for better caching.
next_sample int32 // trigger heap sample after allocating this many bytes next_sample int32 // trigger heap sample after allocating this many bytes
local_cachealloc intptr // bytes allocated from cache since last lock of heap local_cachealloc uintptr // bytes allocated from cache since last lock of heap
// Allocator cache for tiny objects w/o pointers. // Allocator cache for tiny objects w/o pointers.
// See "Tiny allocator" comment in malloc.go. // See "Tiny allocator" comment in malloc.go.
tiny unsafe.Pointer tiny unsafe.Pointer