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In Windows 7, the resource monitor updates about once a second, but I find this too slow. In Task Manager you can make it update about twice a second, or tens of times if you manually refresh it.
F5 doesn't work in the resource monitor for me.
Is there a change in the registry that I can make to change the update speed, or manually refresh resource monitor?
Leonard Severt of the Microsoft Performance Team noted that, ...resmon.exe is hard coded to 1 second intervals and cannot be changed. If you need higher intervals, then create a User Defined Data Collector set.
More on Data Collector sets.
...resmon.exe is hard coded to 1 second intervals and cannot be changed. If you need higher intervals, then create a User Defined Data Collector set.Source: blogs.technet.microsoft.com/askperf/2012/02/01/… Data Collector Set information: technet.microsoft.com/en-us/library/cc722414.aspx