// is not used and the link type guarantees nobody else could use it
// elsewhere.
var disableMemoryProfiling bool

// A MemProfileRecord describes the live objects allocated
// by a particular call sequence (stack trace).
type MemProfileRecord struct {
	AllocBytes, FreeBytes     int64       // number of bytes allocated, freed
	AllocObjects, FreeObjects int64       // number of objects allocated, freed

	}
	for i := range prefix {
		if stk[i] != prefix[i] {
			return false
		}
	}
	return true
}

// ensure that stack records are valid map keys (comparable)
var _ = map[runtime.MemProfileRecord]struct{}{}
var _ = map[runtime.StackRecord]struct{}{}

// allocDeep calls itself n times before calling fn.
func allocDeep(n int) {
	if n > 1 {
		allocDeep(n - 1)
		return
	}