Windows – How to understand disk activity view charts of the Windows 7 resource monitor

disk-activityresource-monitorwindows 7

The disk activity monitor charts show blue line, green line with the green shaded area below and sometimes also the orange line. Of course, the higher the lines the more the activity and horizontal axis is clearly the time but what is exactly plotted there? I have looked into disk activity monitor help but did not find the legend of these charts there.

I mean, Resource Monitor, Disk tab, charts on the right.

Best Answer

  • UPDATE:

    Many thanks to RoG below for more clarification on this answer:

    Green is data being WRITTEN TO and READ FROM the drive.

    Blue shows a statistical quantifier of the amount of data that has been written to and from from the drive, as explained by RoG below:

    "...Blue...showing the current value of the green line divided by the maximum value of the green line, as a percentage."

    Orange shows the impact of a specific task, as chosen by checking a box to highlight the task on the left of the window.

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