获取Windows服务器中的IO服务时间(svctm),等待时间(等待),%util

Question

我们在UNIX中使用iostat在unix中获取所有这些信息.我在windows中可以做什么？目前我们使用typeperf.

Answer 1

Windows 拥有的每项统计信息都可以使用其 Powershell API 访问：

获取计数器 https://technet.microsoft.com/en-us/library/hh849685.aspx

因此，举例来说，如果您这样做：

Set-Alias grep Select-String
(Get-Counter -List PhysicalDisk).PathsWithInstances | grep "C:"

您将获得 C: 驱动器的所有统计信息列表

\PhysicalDisk(0 C:)\Current Disk Queue Length
\PhysicalDisk(0 C:)\% Disk Time
\PhysicalDisk(0 C:)\Avg. Disk Queue Length
\PhysicalDisk(0 C:)\% Disk Read Time
\PhysicalDisk(0 C:)\Avg. Disk Read Queue Length
\PhysicalDisk(0 C:)\% Disk Write Time
\PhysicalDisk(0 C:)\Avg. Disk Write Queue Length
\PhysicalDisk(0 C:)\Avg. Disk sec/Transfer
\PhysicalDisk(0 C:)\Avg. Disk sec/Read
\PhysicalDisk(0 C:)\Avg. Disk sec/Write
\PhysicalDisk(0 C:)\Disk Transfers/sec
\PhysicalDisk(0 C:)\Disk Reads/sec
\PhysicalDisk(0 C:)\Disk Writes/sec
\PhysicalDisk(0 C:)\Disk Bytes/sec
\PhysicalDisk(0 C:)\Disk Read Bytes/sec
\PhysicalDisk(0 C:)\Disk Write Bytes/sec
\PhysicalDisk(0 C:)\Avg. Disk Bytes/Transfer
\PhysicalDisk(0 C:)\Avg. Disk Bytes/Read
\PhysicalDisk(0 C:)\Avg. Disk Bytes/Write
\PhysicalDisk(0 C:)\% Idle Time
\PhysicalDisk(0 C:)\Split IO/Sec

来自 iostat 的手册页（http://linuxcommand.org/man_pages/iostat1.html）

svctm
    The  average  service  time  (in  milliseconds)  for  I/O
    requests that were issued to the device.
await
    The average  time  (in  milliseconds)  for  I/O  requests
    issued to the device to be served. This includes the time
    spent by the requests in queue and the time spent servicing them.

我遵循这些解释：
https://unix.stackexchange.com/questions/104192/iostat-await-vs-svctm
http://www.xaprb.com/blog/2010/09/06/beware-of-svctm -in-linuxs-iostat/

包括不应该再使用svctm的讨论。

如果您看到https://blogs.technet.microsoft.com/askcore/2012/02/07/measuring-disk-latency-with-windows-performance-monitor-perfmon/，您会看到 Windows 有类似的东西。

名为“\PhysicalDisk(*)\Avg. Disk sec/Transfer”的计数器测量花费在以下各项上的时间：
- 类驱动程序
- 端口驱动程序
- 设备微型端口驱动程序
- 磁盘子系统

因此，例如我们可以通过以下方式监控这些统计数据：

Get-Counter -Counter "\PhysicalDisk(0 C:)\% Disk Time"
Get-Counter -Counter "\PhysicalDisk(0 C:)\Avg. Disk sec/Transfer"

或者，如果您愿意，可以选择更“流水线”的版本：

"\PhysicalDisk(0 C:)\% Disk Time","\PhysicalDisk(0 C:)\Avg. Disk sec/Transfer" >> counters.txt
cat counters.txt | Get-Counter

有关每个计数器的更详细说明，请参阅：
https://blogs.technet.microsoft.com/askcore/2012/03/16/windows-performance-monitor-disk-counters-explained/