}
                }
                return previousResults;
            }

            private void addPerformanceGraphs() {
                List<Chart> charts = Lists.newArrayList(new Chart("totalTime", "total time", "s", "totalTimeChart", false));
                if(testHistory instanceof CrossVersionPerformanceTestHistory) {
                    charts.add(new Chart("confidence", "confidence", "%", "confidenceChart", false));

	}
	total := gcTotal + scavTotal + stats.IdleTime + stats.UserTime
	if total != stats.TotalTime {
		t.Errorf("manually computed overall total does not match TotalTime: %d cpu-ns vs. %d cpu-ns", total, stats.TotalTime)
	}
	if total == 0 {
		t.Error("total time is zero")
	}
	if gcTotal == 0 {
		t.Error("GC total time is zero")
	}

				var value time.Duration
				for _, sample := range p.Sample {
					value += time.Duration(sample.Value[1]) * time.Nanosecond
				}

				totalTime := userTime + systemTime
				t.Logf("compare %s user + %s system = %s vs %s", userTime, systemTime, totalTime, value)
				if err := compare(totalTime, value, maxDiff); err != nil {
					t.Logf("compare got %v want nil", err)
					ok = false
				}

				return ok
			}

		},
		"/cpu/classes/total:cpu-seconds": {
			deps: makeStatDepSet(cpuStatsDep),
			compute: func(in *statAggregate, out *metricValue) {
				out.kind = metricKindFloat64
				out.scalar = float64bits(nsToSec(in.cpuStats.TotalTime))
			},
		},
		"/cpu/classes/user:cpu-seconds": {
			deps: makeStatDepSet(cpuStatsDep),
			compute: func(in *statAggregate, out *metricValue) {
				out.kind = metricKindFloat64

	// Compute overall GC CPU utilization.
	// Omit idle marking time from the overall utilization here since it's "free".
	memstats.gc_cpu_fraction = float64(work.cpuStats.GCTotalTime-work.cpuStats.GCIdleTime) / float64(work.cpuStats.TotalTime)

	// Reset assist time and background time stats.
	//
	// Do this now, instead of at the start of the next GC cycle, because
	// these two may keep accumulating even if the GC is not active.

	safePointFn   func(*p)
	safePointWait int32
	safePointNote note

	profilehz int32 // cpu profiling rate

	procresizetime int64 // nanotime() of last change to gomaxprocs
	totaltime      int64 // ∫gomaxprocs dt up to procresizetime

	// sysmonlock protects sysmon's actions on the runtime.
	//
	// Acquire and hold this mutex to block sysmon from interacting
	// with the rest of the runtime.

	}

	if readgstatus(newg) != _Gdead {
		throw("newproc1: new g is not Gdead")
	}

	totalSize := uintptr(4*goarch.PtrSize + sys.MinFrameSize) // extra space in case of reads slightly beyond frame
	totalSize = alignUp(totalSize, sys.StackAlign)
	sp := newg.stack.hi - totalSize
	if usesLR {
		// caller's LR
		*(*uintptr)(unsafe.Pointer(sp)) = 0
		prepGoExitFrame(sp)
	}

	//
	// This should be around 12 KiB or less.
	totalSize := uintptr(0)
	for l := 0; l < summaryLevels; l++ {
		totalSize += (uintptr(1) << (heapAddrBits - levelShift[l])) * pallocSumBytes
	}
	totalSize = alignUp(totalSize, physPageSize)

	// Reserve memory for all levels in one go. There shouldn't be much for 32-bit.
	reservation := sysReserve(nil, totalSize)
	if reservation == nil {

    this.map = map;
  }

  /** Used during deserialization only. */
  final void setMap(Map<K, Collection<V>> map) {
    this.map = map;
    totalSize = 0;
    for (Collection<V> values : map.values()) {
      checkArgument(!values.isEmpty());
      totalSize += values.size();
    }
  }

  /**
   * Creates an unmodifiable, empty collection of values.
   *

    this.map = map;
  }

  /** Used during deserialization only. */
  final void setMap(Map<K, Collection<V>> map) {
    this.map = map;
    totalSize = 0;
    for (Collection<V> values : map.values()) {
      checkArgument(!values.isEmpty());
      totalSize += values.size();
    }
  }

  /**
   * Creates an unmodifiable, empty collection of values.
   *