interfaceTxBytes  MetricName = "tx_bytes"
	interfaceTxErrors MetricName = "tx_errors"

	// cpu stats
	cpuUser       MetricName = "user"
	cpuSystem     MetricName = "system"
	cpuIOWait     MetricName = "iowait"
	cpuIdle       MetricName = "idle"
	cpuNice       MetricName = "nice"
	cpuSteal      MetricName = "steal"
	cpuLoad1      MetricName = "load1"
	cpuLoad5      MetricName = "load5"
	cpuLoad15     MetricName = "load15"

| `minio_node_cpu_avg_idle_max`        | CPU idle time (max).                       |
| `minio_node_cpu_avg_iowait`          | CPU ioWait time.                           |
| `minio_node_cpu_avg_iowait_avg`      | CPU ioWait time (avg).                     |
| `minio_node_cpu_avg_iowait_max`      | CPU ioWait time (max).                     |
| `minio_node_cpu_avg_nice`            | CPU nice time.                             |

| `minio_system_cpu_avg_idle`   | Average CPU idle time. <br><br>Type: gauge              | `server` |
| `minio_system_cpu_avg_iowait` | Average CPU IOWait time. <br><br>Type: gauge            | `server` |
| `minio_system_cpu_load`       | CPU load average 1min. <br><br>Type: gauge              | `server` |

# Concurrency and async / await { #concurrency-and-async-await }

Details about the `async def` syntax for *path operation functions* and some background about asynchronous code, concurrency, and parallelism.

## In a hurry? { #in-a-hurry }

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

If you are using third party libraries that tell you to call them with `await`, like:

```Python
results = await some_library()
```

        for (int t = 0; t < threadCount; t++) {
            final int threadId = t;
            executor.submit(() -> {
                try {
                    startLatch.await(); // Wait for all threads to be ready

                    for (int i = 0; i < opsPerThread; i++) {
                        String share = "share" + (threadId % 3); // Use 3 different shares

                              // WAIT #1
                              barrier.await(1, SECONDS);

                              // WAIT #2
                              barrier.await(1, SECONDS);
                              assertTrue(executor.isShutdown());
                              assertFalse(executor.isTerminated());

                              // WAIT #3

            });

            longRunningThread.start();
            startLatch.await();

            // Check active requests
            assertEquals(1, cbWithTracking.getActiveRequests(), "Should have 1 active request");

            // Complete the operation
            holdLatch.countDown();
            completeLatch.await();
            longRunningThread.join();

                        startLatch.await();
                        response.received();
                        endLatch.countDown();
                    } catch (InterruptedException e) {
                        // Ignore
                    }
                }).start();
            }

            startLatch.countDown();
            assertTrue(endLatch.await(1, TimeUnit.SECONDS));

	h.countScanned(healType)

	if source.noWait {
		select {
		case globalBackgroundHealRoutine.tasks <- task:
			if serverDebugLog {
				fmt.Printf("Task in the queue: %#v\n", task)
			}
		default:
			// task queue is full, no more workers, we shall move on and heal later.
			return nil
		}
		// Don't wait for result
		return nil
	}

	// respCh must be set to wait for result.

    }

    @Override
    public void await() throws InterruptedException {
      lock.lock();
      try {
        condition.await();
      } finally {
        lock.unlock();
      }
    }

    @Override
    public boolean await(long time, TimeUnit unit) throws InterruptedException {
      lock.lock();
      try {
        return condition.await(time, unit);
      } finally {