How to monitor Copy Read Hits Percent for WMI Win32_PerfRawData_PerfOS_Cache ?

With IPHost Network Monitor you can run WMI Copy Read Hits Percent monitoring of various devices in your network.

To create a WMI monitor for Copy Read Hits Percent, provide host name (it must be a Windows host) and specify custom WQL query:

SELECT CopyReadHitsPercent FROM Win32_PerfRawData_PerfOS_Cache

Copy Read Hits is the percentage of cache copy read requests that hit the cache, that is, they did not require a disk read in order to provide access to the page in the cache. A copy read is a file read operation that is satisfied by a memory copy from a page in the cache to the application's buffer. The LAN Redirector uses this method for retrieving information from the cache, as does the LAN Server for small transfers. This is a method used by the disk file systems as well.

The Cache performance object consists of counters that monitor the file system cache, an area of physical memory that stores recently used data as long as possible to permit access to the data without having to read from the disk. Because applications typically use the cache, the cache is monitored as an indicator of application I/O operations. When memory is plentiful, the cache can grow, but when memory is scarce, the cache can become too small to be effective.

IPHost Network Monitor is an advanced and easy tool for monitoring LAN and WAN networks, network servers, workstations and TCP/IP devices. Use IPHost Network Monitor to monitor your servers, domains, computers and devices.