Isn't PAE a non-trivial memory performance hit? Or perhaps it used to be non-trivial, but newer memory technologies are fast enough to make it trivial today?
--Matt Ross Ephrata School District ----- Original Message ----- From: Ben Scott Subject: Re: View PAE setting on W2K8 > On Fri, Apr 3, 2009 at 1:51 PM, Juned Shaikh <jsha...@gmail.com> wrote: > > but I am wondering that why would you need to have PAE in win2k8? becuase > > you have 32 bit installation or you need this on Win2k8-64 Bit for 32 bit > enabled > > applications? > > PAE will let some versions of 32-bit Windows use more than 4 GiB of > RAM. Individual processes are still limited to 2 GiB of userland > address space (or 3 GiB with 4GT), but the system as a whole can use > that much RAM. You could, for example, have several processes, each > using 2 GiB. > > PAE is also needed to get the NX bit (No Execute, i.e., what > Microsoft calls Data Execution Protection). So even 32-bit XP and > Vista enable PAE for DEP. They just ignore memory above 4 GiB. Same > for 2003 Server Standard. > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
