System.out.println("Killing Gradle process with PID " + pid + ": " + line);
                pkill(pid);
            });
        } else {
            forEachLeakingJavaProcess(rootProjectDir, (pid, line) -> {
                System.out.println("A process wasn't shutdown properly in a previous Gradle run. Killing process with PID " + pid + ": " + line);
                pkill(pid);

            final long pid = ProcessHandle.current().pid();
            assertEquals("winhost:" + pid, systemHelper.getInstanceId());
        } finally {
            envMap.remove("COMPUTERNAME");
        }
    }

    @Test
    public void test_getInstanceId_uniquePerProcess() {
        // Verify that instanceId contains PID for process uniqueness

        lock.encode(new byte[20], 0); // initialise fields by encoding to set pid etc (though not needed)
        setField(lock, "pid", 123);
        setField(lock, "byteOffset", 100L);
        setField(lock, "lengthInBytes", 200L);
        LockingAndXRange unlock = new LockingAndXRange(false);
        setField(unlock, "pid", 456);
        setField(unlock, "byteOffset", 300L);
        setField(unlock, "lengthInBytes", 400L);

    SigningDigest digest = null;
    ServerMessageBlock response;

    ServerMessageBlock() {
        flags = (byte) (FLAGS_PATH_NAMES_CASELESS | FLAGS_PATH_NAMES_CANONICALIZED);
        pid = PID;
        batchLevel = 0;
    }

    void reset() {
        flags = (byte) (FLAGS_PATH_NAMES_CASELESS | FLAGS_PATH_NAMES_CANONICALIZED);
        flags2 = 0;
        errorCode = 0;
        received = false;

    }

    /**
     * Gets the process identifier
     * @return the pid
     */
    public final int getPid() {
        return this.pid;
    }

    /**
     * Sets the process identifier
     * @param pid
     *            the pid to set
     */
    public final void setPid(final int pid) {
        this.pid = pid;
    }

    /**
     * Gets the user identifier
     * @return the uid

| `minio_node_io_read_bytes`                 | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes.                  |
| `minio_node_io_wchar_bytes`                | Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar. |

 * to be locked or unlocked, including the process ID, offset, and length.
 *
 * @author mbechler
 */
public class LockingAndXRange implements Encodable, Decodable {

    private final boolean largeFile;
    private int pid;
    private long byteOffset;
    private long lengthInBytes;

    /**
     * Constructs a LockingAndXRange with large file support.
     *
     * @param largeFile whether to use large file support (64-bit offsets)

<font color="#A6E22E">INFO</font>:     Application startup complete.
```

</div>

////

这里唯一的新选项是 `--workers` 告诉 Uvicorn 启动 4 个工作进程。

您还可以看到它显示了每个进程的 **PID**，父进程（这是**进程管理器**）的 PID 为`27365`，每个工作进程的 PID 为：`27368`、`27369`， `27370`和`27367`。

## 部署概念 { #deployment-concepts }

在这里，您学习了如何使用多个**工作进程（workers）**来让应用程序的执行**并行化**，充分利用 CPU 的**多核性能**，并能够处理**更多的请求**。

          println("TLSv1.3 requires an external command run before first traffic is sent")
          println("Follow instructions at https://github.com/neykov/extract-tls-secrets for TLSv1.3")
          println("Pid: ${ProcessHandle.current().pid()}")

          Thread.sleep(10000)
        }
      }

      CommandLine -> {
        return ProcessBuilder(
          "tshark",
          "-l",
          "-V",
          "-o",

     * to ensure uniqueness across multiple JVMs on the same host.
     *
     * @return The instance ID.
     */
    public String getInstanceId() {
        final String targetName = ComponentUtil.getFessConfig().getSchedulerTargetName();
        final String hostname = getHostname();
        final long pid = ProcessHandle.current().pid();
        if (StringUtil.isNotBlank(targetName)) {