DisablePagingExecutive
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From: Ted Zieglar on 13 Sep 2006 21:33 "Like I said, Windows does not use all available physical memory (it rarely ever even comes close.)" Lol...Now all of us can see what an expert you are! --- Ted Zieglar "Backup is a computer user's best friend." Alec S. wrote: > "Cantoris" <Cantoris(a)discussions.microsoft.com> wrote in message news:E187E724-6C44-4B80-9698-085571B54DB8(a)microsoft.com... >> I'm going to try out this hack on some of our >=512MB PCs and see whether it >> has a measurable effect. I hope the theoretical performance gain in the OS >> is not met by a performance loss in apps! > > > I'm trying it out right now (plus a few other tweaks). Like I said, Windows does not use all available physical memory (it rarely > ever even comes close.) One way to force Windows to use more physical memory and less virtual (disk) is to reduce the swap file > size. Some people have even suggested eliminating it altogether but that can cause problems or even prevent boot up at all. I'm > going to try reducing my swap file now. > >
From: Alec S. on 13 Sep 2006 23:07 "Ted Zieglar" <teddy.z(a)news.invalid> wrote in message news:%23iplT351GHA.4108(a)TK2MSFTNGP04.phx.gbl... > "Like I said, Windows does not use all available physical memory (it > rarely ever even comes close.)" > > Lol...Now all of us can see what an expert you are! Huh? I suppose you're an expert? Maybe you should take your complaints to a nagging newsgroup. -- Alec S. news/alec->synetech/cjb/net
From: Jim on 14 Sep 2006 11:36
"Cantoris" <Cantoris(a)discussions.microsoft.com> wrote in message news:B770CEFD-8CA4-480D-9694-E98173F6B3F1(a)microsoft.com... > I'm interested in making use of the registry hack DisablePagingExecutive=1 > in > [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session > Manager\Memory > Management]. > ("This entry specifies whether user-mode and kernel-mode drivers and > kernel-mode system code can be paged to disk when not in use. If the value > of > this entry is 1, the drivers and kernel must remain in physical memory.") > > I can't find any clear guidance on how much system RAM is deemed > sufficient > for this setting to be safely used. Also, how much physical RAM will > actually get tied up by this process on average? Is there any way to > measure > how much a particular system is using for these drivers and Kernel? > > Thanks for any help you can offer. > > Best wishes, > > Andrew Isn't it the size of non paged pool? Isn't non paged pool named that for a reason? Sending the disk driver to the pagefile seems like a prescription for disaster. However, VMS which is the distant ancestor of NT never paged the executive unless the amount of physical memory was extremely small. The resulting hit on performance (or paging the executive) was severe to say the least. So, I am surprised to learn that XP can send parts of the executive to the pagefile all by itself. After all, there aren't very many XP systems which don't have what seems like a very large pool of RAM. Jim |