// eliminates redundant counters).
	Strategy string

	// Prefix assigned to the names of counter variables generated
	// during instrumentation by cmd/cover.
	CounterPrefix string

	// Name chosen for the package ID variable generated during
	// instrumentation.
	PkgIdVar string

	// Counter mode (e.g. set/count/atomic)
	CounterMode string

	// Counter granularity (perblock or perfunc).

change in breaking ways as the telemetry integration is refined.

## Notable Packages

- The [x/telemetry/counter](https://pkg.go.dev/golang.org/x/telemetry/counter)
  package provides a library for instrumenting programs with counters and stack
  reports.
- The [x/telemetry/upload](https://pkg.go.dev/golang.org/x/telemetry/upload)

			// not a counter file
			continue
		}
		counters, _, err := countertest.ReadFile(filepath.Join(localDir, dirent.Name()))
		if err != nil {
			t.Fatalf("reading counter file: %v", err)
		}
		for k, v := range counters {
			totals[k] += v
		}
	}

	return totals
}

func checkCounters(t *testing.T, telemetryDir string) {
	counters := readCounters(t, telemetryDir)

	if err != nil {
		klog.ErrorS(err, "Unable to get packetsReceivedPerSecond perf counter data")
		return nil, err
	}

	packetsSentPerSecondData, err := n.packetsSentPerSecondCounter.getDataList()
	if err != nil {
		klog.ErrorS(err, "Unable to get packetsSentPerSecond perf counter data")
		return nil, err
	}

	bytesReceivedPerSecondData, err := n.bytesReceivedPerSecondCounter.getDataList()

  /**
   * Multiple threads using same array of counters successfully update a number of times equal to
   * total count
   */
  public void testCountingInMultipleThreads() throws InterruptedException {
    final AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i = 0; i < SIZE; i++) {
      aa.set(i, (double) COUNTDOWN);
    }
    Counter c1 = new Counter(aa);
    Counter c2 = new Counter(aa);

		klog.ErrorS(err, "Unable to get cpu perf counter data")
		return
	}

	memWorkingSetValue, err := memWorkingSetCounter.getData()
	if err != nil {
		klog.ErrorS(err, "Unable to get memWorkingSet perf counter data")
		return
	}

	memCommittedBytesValue, err := memCommittedBytesCounter.getData()
	if err != nil {
		klog.ErrorS(err, "Unable to get memCommittedBytes perf counter data")
		return
	}

type MetricType int

const (
	// CounterMT - represents a counter metric.
	CounterMT MetricType = iota
	// GaugeMT - represents a gauge metric.
	GaugeMT
	// HistogramMT - represents a histogram metric.
	HistogramMT
	// rangeL - represents a range label.
	rangeL = "range"
)

func (mt MetricType) String() string {
	switch mt {
	case CounterMT:
		return "counter"
	case GaugeMT:
		return "gauge"

                        options.forkOptions.jvmArgs << "-Dcounter=" + project.property("counter")
                    }
                }
            """
        }
    }

    def "can recompile many times in a row with a changing set of compiler daemons"() {
        expect:
        10.times {
            println("Run $it")
            succeeds("clean", "assemble", "-Pcounter="+it)
        }
    }

// func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
TEXT ·xorKeyStreamVX(SB), NOSPLIT, $0
	MOVD $·constants<>(SB), R1
	MOVD dst+0(FP), R2         // R2=&dst[0]
	LMG  src+24(FP), R3, R4    // R3=&src[0] R4=len(src)
	MOVD key+48(FP), R5        // R5=key
	MOVD nonce+56(FP), R6      // R6=nonce
	MOVD counter+64(FP), R7    // R7=counter

	// load BSWAP and J0
	VLM (R1), BSWAP, J0

	// setup

	const prefix = "crash/crash"
	return counter.EncodeStack(pcs, prefix), nil
}

// parseStackPCs parses the parent process's program counters for the
// first running goroutine out of a GOTRACEBACK=system traceback,
// adjusting them so that they are valid for the child process's text
// segment.
//
// This function returns only program counter values, ensuring that