So is it normal for resource monitor/disk activity to show writes like this?
Just having the window open next to whatever task I'm performing typically shows between 5 and 20 "images" with write B/sec > 999 (some in the 100,000 to 500,000 range). Sometimes the total list is 50 or more entries, with varying values for writes/sec. The display is constantly refreshing of course, but it looks like many of the same images appear mulitple times in the list, and with each refresh the numbers continue to change (some rising, some falling), which I infer to mean that writes continue to happen over time. In any 10-second frame of time, I might see the same "image name" appear ten times, with two or three in the "top 5 writes" (I have the list sorted in descending order by writes).
As I type this post (via Firefox), SYSTEM and FIREFOX.EXE are both causing writes. I have no plugins installed and I'm not switching windows. Appdata\roaming is getting hit, NTFS Freespace and volume log, the C: MFT, and a few other things keep showing up. Under the storage section, the C: partition shows mostly 0.0 for "active time %", but it does fluctuate to small but nonzero values, even when I stop typing.
CPU is not in great use as I type this post (or stop to watch the display), but at this moment, my top CPU processes include Sierra2.GPU.exe, System Interrupts, atkexComSvc.exe, SierraService.exe, dwm.exe, firefox.exe, perfmon.exe, and aaHMSvc.exe .
One last observation: My hard drive lights are flickering for my two HDDs (the new one and the old one are still in place). My SSD hard drive lights are always-on; the latter don't appear to indicate when activity is occurring.
I suppose I should ask the obvious question. Is all of this behavior typical and expected?