// default, and a program named go_$GOOS_$GOARCH_exec can be found
// on the current search path, 'go run' invokes the binary using that program,
// for example 'go_js_wasm_exec a.out arguments...'. This allows execution of
// cross-compiled programs when a simulator or other execution method is
// available.
//
// By default, 'go run' compiles the binary without generating the information

		t.Error("allocs-by-size and frees-by-size counts don't match in length")
	} else {
		for i := range objects.alloc.Buckets {
			ba := objects.alloc.Buckets[i]
			bf := objects.free.Buckets[i]
			if ba != bf {
				t.Errorf("bucket %d is different for alloc and free hists: %f != %f", i, ba, bf)
			}
		}
		if !t.Failed() {
			var gotAlloc, gotFree uint64
			want := objects.total
			for i := range objects.alloc.Counts {

			var stats string
			if logMemStats {
				var mEnd runtime.MemStats
				runtime.ReadMemStats(&mEnd)
				nBytes := mEnd.TotalAlloc - mStart.TotalAlloc
				nAllocs := mEnd.Mallocs - mStart.Mallocs
				stats = fmt.Sprintf("[%d ns %d allocs %d bytes]", time, nAllocs, nBytes)
			} else {
				stats = fmt.Sprintf("[%d ns]", time)
			}

			if f.Log() {
				f.Logf("  pass %s end %s\n", p.name, stats)
				printFunc(f)

var emptymspan mspan

func allocmcache() *mcache {
	var c *mcache
	systemstack(func() {
		lock(&mheap_.lock)
		c = (*mcache)(mheap_.cachealloc.alloc())
		c.flushGen.Store(mheap_.sweepgen)
		unlock(&mheap_.lock)
	})
	for i := range c.alloc {
		c.alloc[i] = &emptymspan
	}
	c.nextSample = nextSample()
	return c
}

// freemcache releases resources associated with this

		// Size is the maximum byte size of an object in this
		// size class.
		Size uint32

		// Mallocs is the cumulative count of heap objects
		// allocated in this size class. The cumulative bytes
		// of allocation is Size*Mallocs. The number of live
		// objects in this size class is Mallocs - Frees.
		Mallocs uint64

		// Frees is the cumulative count of heap objects freed
		// in this size class.
		Frees uint64

		}
	})
}

func TestBuilderGrowSizeclasses(t *testing.T) {
	s := Repeat("a", 19)
	allocs := testing.AllocsPerRun(100, func() {
		var b Builder
		b.Grow(18)
		b.WriteString(s)
		_ = b.String()
	})
	if allocs > 1 {
		t.Fatalf("unexpected amount of allocations: %v, want: 1", allocs)
	}

	// Pprof will ignore, but useful for people
	s := memStats
	fmt.Fprintf(w, "\n# runtime.MemStats\n")
	fmt.Fprintf(w, "# Alloc = %d\n", s.Alloc)
	fmt.Fprintf(w, "# TotalAlloc = %d\n", s.TotalAlloc)
	fmt.Fprintf(w, "# Sys = %d\n", s.Sys)
	fmt.Fprintf(w, "# Lookups = %d\n", s.Lookups)
	fmt.Fprintf(w, "# Mallocs = %d\n", s.Mallocs)
	fmt.Fprintf(w, "# Frees = %d\n", s.Frees)

	fmt.Fprintf(w, "# HeapAlloc = %d\n", s.HeapAlloc)

	// active.
	future [3]memRecordCycle
}

// memRecordCycle
type memRecordCycle struct {
	allocs, frees           uintptr
	alloc_bytes, free_bytes uintptr
}

// add accumulates b into a. It does not zero b.
func (a *memRecordCycle) add(b *memRecordCycle) {
	a.allocs += b.allocs
	a.frees += b.frees
	a.alloc_bytes += b.alloc_bytes
	a.free_bytes += b.free_bytes
}

		Endpoint: addr,
		Uptime:   UTCNow().Unix() - globalBootTime.Unix(),
		Version:  Version,
		CommitID: CommitID,
		Network:  network,
		MemStats: madmin.MemStats{
			Alloc:      memstats.Alloc,
			TotalAlloc: memstats.TotalAlloc,
			Mallocs:    memstats.Mallocs,
			Frees:      memstats.Frees,
			HeapAlloc:  memstats.HeapAlloc,
		},
		GoMaxProcs:     runtime.GOMAXPROCS(0),
		NumCPU:         runtime.NumCPU(),

		return 0
	}
	return (float64(r.Bytes) * float64(r.N) / 1e6) / r.T.Seconds()
}

// AllocsPerOp returns the "allocs/op" metric,
// which is calculated as r.MemAllocs / r.N.
func (r BenchmarkResult) AllocsPerOp() int64 {
	if v, ok := r.Extra["allocs/op"]; ok {
		return int64(v)
	}
	if r.N <= 0 {
		return 0
	}
	return int64(r.MemAllocs) / int64(r.N)
}