Re: Available Physical Memory - where does it go?
From: R. C. White (rc_at_corridor.net)
Date: 11/23/04
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Date: Tue, 23 Nov 2004 14:33:57 -0600
Hi, D.
If you want to learn about how WinXP manages memory, see MVP Alex Nichol's
explanation at:
Virtual Memory in Windows XP
http://aumha.org/win5/a/xpvm.php
Pay special attention to "Why is there so little Free RAM?", where we find
this line: "Windows will always try to find some use for all of RAM - even
a trivial one. If nothing else it will retain code of programs in RAM after
they exit, in case they are needed again." So, it is WinXP itself, not
"badly written programs", that decides how much to keep in RAM.
Do you actually have a problem, D., or are you just trying to learn more
about WinXP? Most memory problems were left behind when we moved from
MS-DOS to WinXP. Of course, increasing RAM to the gigabyte range helped,
too. My first computer (the original TRS-80 in 1977) had just 16 KB RAM!
RC
-- R. C. White, CPA San Marcos, TX rc@corridor.net Microsoft Windows MVP "...D." <d@no_usenet_email..org> wrote in message news:3t46q09c1kcucqmj7469a5mlq8r9op559g@4ax.com... > Available Physical Memory - where does it go? > > What I am talking about is that when I 1st boot up my computer, i have > something like 768 RAM (a 256 & a 512 MB chips), and "Available physical > memory = 390.55 MBs. OK, that's 64 MBs for video, plus otherv stuff. > Acceptable. But I notice as the day goes on, I might check an hour later > and only see 250 MBs available physical memory. I guess it depends what I > have opened. But this is checking with no programs open at all. No > extra icons in place in my tray (only those there when I started ther > computer up). > > But my question is - why are these programs keeping memory in RAM when > they are no longer opened or turned on or anything? Are these badly > written programs or something that don't remove the RAM they used from my > available RAM? > > Is there any way to re-free this trapped RAM? Or track down the culprit > or culprits (wouldn't know what to look for in task manager). > > ...D.
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