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如何获取CPU等待队列中的线程数？

tag-icon • tag-icon linux process
如何获取CPU等待队列中的线程数？

有没有办法以编程方式获取 Linux 上等待 cpu 的线程数。

答案1

从 ps 手册页中，状态字段将告诉您线程是否在运行队列上（使用“L”选项查看线程）--

  D    uninterruptible sleep (usually IO)
  R    running or runnable (on run queue)
  S    interruptible sleep (waiting for an event to complete)
  T    stopped by job control signal
  t    stopped by debugger during the tracing
  W    paging (not valid since the 2.6.xx kernel)
  X    dead (should never be seen)
  Z    defunct ("zombie") process, terminated but not reaped by its parent

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