如何找出 Windows 上的交换空间使用情况
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How to find out swap space usage on windows
提问by eric young
I want to monitore swap space usage on windows 2003 server. If the usage is over 80% for 10 minutes, an alarm will be generated. There are lot of tools for RAM, but how about swap usage? How do I simulate that condition and do the test?
我想监视 Windows 2003 服务器上的交换空间使用情况。如果使用率超过 80% 持续 10 分钟，则会产生警报。RAM 有很多工具，但是交换使用情况如何？我如何模拟该条件并进行测试？
回答by Preet Sangha
To force the page file to be used. Start Commiting Memmory. Use the VirtualAllocapi call:
强制使用页面文件。开始提交内存。使用VirtualAllocapi 调用：
LPVOID WINAPI VirtualAlloc(
__in_opt LPVOID lpAddress,
__in SIZE_T dwSize,
__in DWORD flAllocationType,
__in DWORD flProtect
);
and set flAllocationType to MEM_COMMIT (0x1000), this should start memory being used. Once memory is suffcient exhausted, then the page file should be automatically employed. I suspect you'll have to start measuring usage and then determine heuristically as to when %usage you require happens.
并将 flAllocationType 设置为MEM_COMMIT (0x1000)，这应该启动正在使用的内存。一旦内存足够耗尽，则应自动使用页面文件。我怀疑您必须开始测量使用情况，然后启发式地确定您需要的 %usage 何时发生。
To monitor it read the performance counters. The paging file set has a %usage counter you can read. Start here on how to consume them. All you need is to create a windows service that reads the info and then rings the appropriate alarms.
要监视它，请读取性能计数器。分页文件集有一个可以读取的 %usage 计数器。从这里开始了解如何使用它们。您所需要的只是创建一个 Windows 服务来读取信息，然后响起相应的警报。
.Net : http://blogs.msdn.com/b/bclteam/archive/2006/06/02/618156.aspxC++ : http://msdn.microsoft.com/en-us/library/aa373219(v=VS.85).aspxor http://msdn.microsoft.com/en-us/library/aa373214(v=VS.85).aspx
.Net：http: //blogs.msdn.com/b/bclteam/archive/2006/06/02/618156.aspxC++：http: //msdn.microsoft.com/en-us/library/aa373219(v= VS.85).aspx或http://msdn.microsoft.com/en-us/library/aa373214(v=VS.85).aspx
回答by Bukes
Use the built-in performance counters. You can fetch them via WMI/Win32_Perf:
使用内置的性能计数器。您可以通过 WMI/Win32_Perf 获取它们：
http://msdn.microsoft.com/en-us/library/aa394270%28v=VS.85%29.aspx
http://msdn.microsoft.com/en-us/library/aa394270%28v=VS.85%29.aspx
or the raw Performance counter/registry interfaces:
或原始性能计数器/注册表接口：
http://msdn.microsoft.com/en-us/library/aa373083%28v=VS.85%29.aspx
http://msdn.microsoft.com/en-us/library/aa373083%28v=VS.85%29.aspx
