Question

我正在尝试获取进程列表，包括它们的当前负载。 typeperf "\Process(*)\% Processor Time" -sc 1似乎给了我想要的输出。从cmd执行此操作即可。

现在我尝试从我的Go代码中调用该命令

// Command to list processes
cmdPS := exec.Command("typeperf", "\"\\Process(*)\\% Processor Time\"", "-sc", "1")
cmdPS.Stdout = &buff
cmdPS.Stderr = &errBuff
err := cmdPS.Run()
if err != nil {
    log.Printf("Err: %s", buff.String())
    return nil, errors.Wrapf(err, "Failed to call: ps ax -o")
}

结果是：

Exiting, please wait...
Error: No valid counters.

Note:
  In order to use typeperf, you must either be a member of the local
  Performance Log Users group, or the command must be executed from an
  elevated command window.

格式化命令字符串的方式是否错误？我希望直接并通过Go执行此命令将以相同的权限运行。

Answer 1

看起来您需要删除转义的引号。外壳程序（或本例中的cmd）将为您处理参数。

但是，在我的计算机上运行typeperf "\Process(*)\% Processor Time" -sc 1可能会导致以下后果。

Error: No valid counters.

Note:
  In order to use typeperf, you must either be a member of the local
  Performance Log Users group, or the command must be executed from an
  elevated command window.

从Go代码中调用typeperf以接收系统信息

1 个答案: