在 Windows 上以编程方式获取每个进程的磁盘 io 统计信息？
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Programmatically getting per-process disk io statistics on Windows?
提问by dutchmega
I would like to display a list of processes (Windows, C++) and how much they are reading and writing from the disk in KB/sec.
我想显示进程列表（Windows、C++）以及它们以 KB/sec 为单位从磁盘读取和写入的数量。
The Resource Monitor of Windows 7 has the ability so I should be able to do the same.
Windows 7 的资源监视器有能力，所以我应该也能做到。
However I have unable to find a relevant API-call or find anything in the perfmon counters. Could anyone point me in the direction?
但是，我无法找到相关的 API 调用或在性能计数器中找到任何内容。谁能指出我的方向？
回答by Michael
You can call GetProcessIoCountersto get overall disk I/O data per process - you'll need to keep track of deltas and converting to time-based rate yourself.
您可以调用GetProcessIoCounters来获取每个进程的整体磁盘 I/O 数据 - 您需要跟踪增量并自己转换为基于时间的速率。
This API will tell you total number of I/O operations as well as total bytes.
这个 API 会告诉你 I/O 操作的总数以及总字节数。
回答by Alex Martelli
WMIcan do it, as long as you periodically snapshot it to get differential stats for some "recent" slice of time. This postpresents a peculiarly mixed solution, with VBScriptreading the info from WMI and Perlcontinually presenting the information in a Windows console. Despite the strange language mix, I think it stands as a good example of how to get at the kind of information you require (it should be quite possible to recode all of it in C++, of course).
WMI可以做到这一点，只要您定期对其进行快照以获取某些“最近”时间段的差异统计信息。 这篇文章提出了一种特殊的混合解决方案，VBScript从 WMI 读取信息，Perl不断在 Windows 控制台中显示信息。尽管有奇怪的语言组合，但我认为它是如何获取所需信息的一个很好的例子（当然，应该很可能用 C++ 重新编码所有这些信息）。
