20090328 - Windows Vista - leaner than Windows 7?

Following on from my tests earlier, here's a Vista Enterprise 512MB machine freshly installed with 512MB memory, and no paging file:



babelfish:~ crispi$ ps -e -o pid,rss,command | grep -i vmx | grep -v grep
8821 697112 /Library/Application Support/VMware Fusion/vmware-vmx -E en -D krof3I/KOq0DLgAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= -# product=1;name=VMware Fusion;version=2.0.2;buildnumber=146107;licensename=VMware Fusion for Mac OS;licenseversion=6.0 build-146107; -@ pipe=/var/folders/7R/7Rq7evMGH9qZLSXoCGYx6k+++TI/-Tmp-//vmware-crispi/vmx998c9980be2dd6b0;readyEvent=25 /Users/crispi/vmware/Vista.vmwarevm/Vista.vmx

Remember we were comparing this with Windows 7:

12607 706252 /Library/Application Support/VMware Fusion/vmware-vmx -E en -D mJw7K7usuM8LJAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= -# product=1;name=VMware Fusion;version=2.0.2;buildnumber=146107;licensename=VMware Fusion for Mac OS;licenseversion=6.0 build-146107; -@ pipe=/var/folders/7R/7Rq7evMGH9qZLSXoCGYx6k+++TI/-Tmp-//vmware-crispi/vmxc6654b5eff7f6b21;readyEvent=27 /Users/crispi/vmware/Windows7.vmwarevm/Windows7.vmx


Conclusion? Don't believe all the hype. Windows 7 does not appear to use less memory than Vista.