diff options
Diffstat (limited to 'src/runtime/mfixalloc.go')
| -rw-r--r-- | src/runtime/mfixalloc.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/runtime/mfixalloc.go b/src/runtime/mfixalloc.go index a81139a389..b701a09b40 100644 --- a/src/runtime/mfixalloc.go +++ b/src/runtime/mfixalloc.go @@ -30,7 +30,8 @@ type fixalloc struct { arg unsafe.Pointer list *mlink chunk uintptr // use uintptr instead of unsafe.Pointer to avoid write barriers - nchunk uint32 + nchunk uint32 // bytes remaining in current chunk + nalloc uint32 // size of new chunks in bytes inuse uintptr // in-use bytes now stat *sysMemStat zero bool // zero allocations @@ -63,6 +64,7 @@ func (f *fixalloc) init(size uintptr, first func(arg, p unsafe.Pointer), arg uns f.list = nil f.chunk = 0 f.nchunk = 0 + f.nalloc = uint32(_FixAllocChunk / size * size) // Round _FixAllocChunk down to an exact multiple of size to eliminate tail waste f.inuse = 0 f.stat = stat f.zero = true @@ -84,8 +86,8 @@ func (f *fixalloc) alloc() unsafe.Pointer { return v } if uintptr(f.nchunk) < f.size { - f.chunk = uintptr(persistentalloc(_FixAllocChunk, 0, f.stat)) - f.nchunk = _FixAllocChunk + f.chunk = uintptr(persistentalloc(uintptr(f.nalloc), 0, f.stat)) + f.nchunk = f.nalloc } v := unsafe.Pointer(f.chunk) |