Whenever I show the Network tab of the Windows Resource Monitor in Windows 8 my wireless network performance decreases by 50%.
I was trying to work out why I was not getting anything more than 150Mbps on an 802.11n network and thought I would use the Resource Monitor to get feedback but whenever I show the Ui network performance dips from 21MB/s to 9MB/s as in the graph below.
The red bars highlight the dips that occur when restoring the window:
If I open Resource Monitor and minimize it the effect is nil but the moment I show/restore the dialog my network performance dips to < 50%.
Is this a known issue? Seems utterly ridiculous to me. What's the point of the tool if by merely using / observing it you drastically alter the performance characteristics of the thing being observed?
Perhaps I should also add this is a new chip Intel 4770-K with on-chip graphics, no discreet card just yet. Don't see why that should make a difference unless I'm an Intel guinea pig.