Actually such here the question arose. Main system is Windows 7 x64, 4 GB RAM. For a number of reasons you often need to use dev with WinXP, I have it under VMware was previously under version 6.5.whatever, now 7.0.1 build-227600. The virtual machine is allocated 2048 MB of memory, is the checkbox "Disable memory page trimming" in the VMware settings in the Memory section indicated as 2.5 GB of Reserved memory for the virtualization platform, the selected option "Fit all virtual machine memory into reserved host RAM".
That is, as I understand it — the dev needs to catch your honest 2GB. But the reality is slightly different thing, namely, if I leave for a while the V-world with no activity, then when you resume it just starts to slow down wildly, according to system monitor is a huge activity pagefile.sys that is part of the memory still was dropped on a hard surface. Accordingly a few minutes to work just nevoziozhno, the hard disk is actively loaded. Actually the question — maybe someone knows how this is treated? Or have I misunderstood something in the settings?