Alloc:      memstats.Alloc,
			TotalAlloc: memstats.TotalAlloc,
			Mallocs:    memstats.Mallocs,
			Frees:      memstats.Frees,
			HeapAlloc:  memstats.HeapAlloc,
		},
		GoMaxProcs:     runtime.GOMAXPROCS(0),
		NumCPU:         runtime.NumCPU(),
		RuntimeVersion: runtime.Version(),
		GCStats: &madmin.GCStats{
			LastGC:     gcStats.LastGC,
			NumGC:      gcStats.NumGC,
			PauseTotal: gcStats.PauseTotal,

		return true
	}
	// Collect matching benchmarks and determine longest name.
	maxprocs := 1
	for _, procs := range cpuList {
		if procs > maxprocs {
			maxprocs = procs
		}
	}
	ctx := &benchContext{
		match:  newMatcher(matchString, *matchBenchmarks, "-test.bench", *skip),
		extLen: len(benchmarkName("", maxprocs)),
	}
	var bs []InternalBenchmark
	for _, Benchmark := range benchmarks {

	errFatal(err)

	// Wait for all to connect
	// Parallel writes per server.
	b.Run("bytes", func(b *testing.B) {
		for par := 1; par <= 32; par *= 2 {
			b.Run("par="+strconv.Itoa(par*runtime.GOMAXPROCS(0)), func(b *testing.B) {
				defer timeout(60 * time.Second)()
				ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
				defer cancel()
				b.ReportAllocs()
				b.SetBytes(int64(len(payload) * 2))

				break
			}
			gomaxprocs := int(m.Value.Uint64())
			if len(ps) > gomaxprocs {
				if flags&UtilPerProc != 0 {
					// End each P's series.
					for _, p := range ps[gomaxprocs:] {
						out[p.series] = addUtil(out[p.series], MutatorUtil{int64(ev.Time()), 0})
					}
				}
				ps = ps[:gomaxprocs]
			}
			for len(ps) < gomaxprocs {
				// Start new P's series.
				series := 0

	for i := range ballast {
		ballast[i] = new([1024]*node)
		for j := range ballast[i] {
			ballast[i][j] = &node{
				data: [128]byte{1, 2, 3, 4},
			}
		}
	}

	procs := runtime.GOMAXPROCS(-1)
	sink = make([][]byte, procs)

	for i := 0; i < procs; i++ {
		i := i
		go func() {
			for {
				sink[i] = make([]byte, 4<<10)
			}
		}()
	}

	// the same 100 times in a row. This should be more than enough to
	// ensure all goroutines get a chance to run to completion (or to
	// some block point) for a small group of test goroutines.
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))

	c := 0
	ng := runtime.NumGoroutine()
	for i := 0; i < 1000; i++ {
		nng := runtime.NumGoroutine()
		if nng == ng {
			c++
		} else {
			c = 0
			ng = nng
		}

	}
	// TODO(mknyszek): Consider modeling procs differently and have them be
	// transition to and from NotExist when GOMAXPROCS changes. We can emit
	// events for this to clearly delineate GOMAXPROCS changes.

	if viewerEv.Name != "" {
		ctx.Instant(viewerEv)
	}
}

func (g *threadGenerator) ProcRange(ctx *traceContext, ev *trace.Event) {

		iters := uint64(0)
		b.SetParallelism(3)
		b.RunParallel(func(pb *testing.PB) {
			atomic.AddUint32(&procs, 1)
			for pb.Next() {
				atomic.AddUint64(&iters, 1)
			}
		})
		if want := uint32(3 * runtime.GOMAXPROCS(0)); procs != want {
			t.Errorf("got %v procs, want %v", procs, want)
		}
		if iters != uint64(b.N) {
			t.Errorf("got %v iters, want %v", iters, b.N)
		}
	})
}

func TestRunParallelFail(t *testing.T) {

			delete(g.inSyscall, proc)
		}
	}
	// TODO(mknyszek): Consider modeling procs differently and have them be
	// transition to and from NotExist when GOMAXPROCS changes. We can emit
	// events for this to clearly delineate GOMAXPROCS changes.

	if viewerEv.Name != "" {
		ctx.Instant(viewerEv)
	}
}

func (g *procGenerator) Finish(ctx *traceContext) {
	ctx.SetResourceType("PROCS")

		the GC. Even if only one thread is running during the pause,
		this is computed as GOMAXPROCS times the pause latency because
		nothing else can be executing. This is the exact sum of samples
		in /sched/pauses/total/gc:seconds if each sample is multiplied
		by GOMAXPROCS at the time it is taken. This metric is an
		overestimate, and not directly comparable to system CPU time