const runtime.arenaBits

5 uses

	runtime (current package)
		malloc.go#L293: 	arenaBits = arenaL1Bits + arenaL2Bits
		malloc.go#L543: 		const arenaMetaSize = (1 << arenaBits) * unsafe.Sizeof(heapArena{})
		malloc.go#L649: 		} else if arenaIndex(p+n-1) >= 1<<arenaBits {
		malloc.go#L709: 		} else if arenaIndex(p) >= 1<<arenaBits {
		malloc.go#L711: 		} else if arenaIndex(p+size-1) >= 1<<arenaBits {

The pages are generated with Golds v0.6.7. (GOOS=linux GOARCH=amd64)
Golds is a Go 101 project developed by Tapir Liu.
PR and bug reports are welcome and can be submitted to the issue list.
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