Ran a bit longer test on my 2 computers. Laptop and desktop both running driver 397.64. I lowered the iterations down to 20 so I could keep both under the same load.
Laptop:
Time Since Boot: 17.71 Seconds
Platform Memory Stats for Windows
Process Physical Memory: 783.17 MB used, 870.22 MB peak
Process Virtual Memory: 1052.93 MB used, 1160.02 MB peak
Physical Memory: 5396.96 MB used, 10912.34 MB free, 16309.30 MB total
Virtual Memory: 5973.20 MB used, 10912.34 MB free, 134217728.00 MB total
Time Since Boot: 1075.99 Seconds
Platform Memory Stats for Windows
Process Physical Memory: 1023.11 MB used, 1297.11 MB peak
Process Virtual Memory: 1323.19 MB used, 1598.73 MB peak
Physical Memory: 5481.00 MB used, 10828.30 MB free, 16309.30 MB total
Virtual Memory: 6233.93 MB used, 10828.30 MB free, 134217728.00 MB total
240MB over 1,059s
=0.23MB/s
~rounding…etc.
Desktop:
Time Since Boot: 13.75 Seconds
Platform Memory Stats for Windows
Process Physical Memory: 802.79 MB used, 881.27 MB peak
Process Virtual Memory: 1096.98 MB used, 1194.72 MB peak
Physical Memory: 6729.58 MB used, 9603.04 MB free, 16332.62 MB total
Virtual Memory: 1889.63 MB used, 9603.04 MB free, 134217728.00 MB total
Time Since Boot: 886.86 Seconds
Platform Memory Stats for Windows
Process Physical Memory: 1679.29 MB used, 2568.29 MB peak
Process Virtual Memory: 1973.91 MB used, 2865.66 MB peak
Physical Memory: 7549.80 MB used, 8782.82 MB free, 16332.62 MB total
Virtual Memory: 2780.58 MB used, 8782.82 MB free, 134217728.00 MB total
877MB over 873s
=1.005MB/s
So same driver, same engine version, same project, the only real differences is general strength of computing power. For some reason the more powerful machine is leaking 4x as fast as the other one.
This stuff is out of my wheelhouse, but is there any possible connection to windows? I had a piece of software that was heavily affected by a meltdown/spectre patch that kinda showed similar symptoms. (not sure on the mem leak, referring to the stutter specifically)