Update:
By accident I've stumbled upon a real world event of 2 apps actually using my page file to page out streaming data to disk while in operation and 1 app affecting the performance of the other due to page file access issues.....
I was making an ATTO run on my Sammy SM951 AHCI 128Gb PCI-E SSD (SSD which has the page file located on it) while playing music using Spotify (a client based music processing software used to process streaming sound packets from the Internet to my SB X7 DAC-AMP outputting thru my Logitech Z623 THX 2.1 speaker\subwoofer setup) and noticed that once I commenced on my ATTO benchmark run all went w\ no issue on every ATTO read test but on EVERY ATTO write test, the sound output went into a sound loop (exactly like a platter w\ a scratch across the grooves) until the particular ATTO write test concluded at which time the sound looping stopped and all synched back up and moved on. This occurred on EVERY ATTO write test...not the read test...until the benchmark was completed.
Discovering this I then ran ATTO on my Sammy 850 Pro SATA SSD (which doesn't have a page file assigned to it) for verification and sure enough, when ATTO ran a write test on this SSD the sound wasn't affected at all.....all was in perfect synch.
This little discovery has now helped to confirm my thoughts concerning Windows OS and apps usage of paging to operate well as the OS had addressed a certain amount of system mem according to the app's interrupt request which had filled so it them started using the page file to page out data to disc that wasn't needed anymore that was taking up addressed mem space....even though I have 16Gb of system mem onboard and Prefetch and SuperFetch (which could account for the paging out due to the nature of how SuperFetch works) enabled along w\ an OS managed page file size.
Also confirms, to me at least, the benefit to software performance that an OS\app and the page file can provide when the page file is set up on separate disk(s) from the disk that the OS\app is on, along w\ the latency speeds\data transfer rates of the disks being used, along w\ the speed\bandwidth of the data path(s) between the 2 disks that the data travels across and system mem latency\data transfer rates.............along w\ the importance of keeping to a minimum the number of software apps being used on a computer at the same time, especially softwares that are KNOWN to use a page file to operate........
IOW's the computer subsystem performance as well as the components themselves............
Something to consider in the future when you're playing AH (which does page out to disk) w\ other software running in the background regardless of computer set up and component capability and you're seeing AH not perform as well as you think it should..............
Just by chance it may not be a vid card\CPU\Internet issue alone........................
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PS--Here is the ATTO run on the Sammy SM951...............