I created several memory bandwidth analyses on a Xeon E5-2640 (Sandy Bridge) system running at @.2.5GHz. It appears that the resolution of the gathered data is always every 10 ms. I can zoom in to a higher level, but the data appears is aggregated at this higher level... resulting in stair-stepped graphs (i've attached an example screenshot).
Looking at the Sample After values for the capture, the slowest appears to be 2000000. Which I believe should result in 1250 samples per second (2.5GHz / 2000000)... but that should result in a resolution of .8 ms.
Is the resolution of the memory bandwidth analysis capped at 10 ms or is there some way to configure it to be lower.