Well it helps a bit the but I've got problems.
P4 @2.1
ATI R9800SE AIW 128MB
1024 RAM
7 Civs standard size highlands 2006AD
Without patch:
FPS is playable. Swaps though I don't know why because only 532MB memory is used.
VM=120 IM=1:
No swapping, FPS unplayable, 422MB
VM=80 IM=1:
No swapping, FPS unplayable. 427MB
VM=70 IM=1:
Swaps less than without the patch, FPS bad. 474MB
VM=60 IM=1:
Swaps a bit less than without the patch, FPS playable. 442MB
VM=50 IM=1:
Swaps, FPS playable.
It works, but not very well for me. If I want the rampant swapping gone I can't get playable framerates. I'm still going to use this because saved games load thrice as fast than without the patch. Leaderhead animation also gets a bit funky.
VM=50/60 is about the same than running unpatched, maybe a bit better but it's hard to tell. I expect that swapping gets worse with VM below 50.