const runtime._FixAllocChunk

3 uses

	runtime (current package)
		malloc.go#L136: 	_FixAllocChunk = 16 << 10 // Chunk size for FixAlloc
		mfixalloc.go#L80: 		f.chunk = uintptr(persistentalloc(_FixAllocChunk, 0, f.stat))
		mfixalloc.go#L81: 		f.nchunk = _FixAllocChunk