Subj : Re: Windows issues
To   : Angus Mcleod
From : Finnigann
Date : Sat Jun 11 2005 10:29 am

-=> With interpidation and the MAGIC of QWK Mail Angus Mcleod wrote to
Finnigann <=-

 AM>   Re: Re: Windows issues
 AM>   By: Finnigann to Angus Mcleod on Fri Jun 10 2005 17:52:00

 AM> I did read it.  I knew much of it before.  I did find the
 AM> material on the specifics of how the OS moved pages from list to
 AM> list to be interesting. And I like the way they search the
 AM> freed-but-not-yet-cleared list of pages when a page-hit occurs --
 AM> clever optimization.

 AM> Essentially, what I was telling you is run less programs (making
 AM> more RAM available) or buy more RAM.

 It's hard to say what all is running as most are not visible to me
 unless I run the task manager.

 And with the cryptic names given to programs, it's almost impossible to
 know what's good and what's malicious.

 Hopefully I have the RAM supply in suffcient quanity. 2x512 megs.


 
 
 > And the rest of the article said that if you have xx% free ram, you are
 > wasting xx%. Well that sort of makes sense, but not logically. Of course
 > I tend to trail back on the understanding parts.


 > It has been my understanding that Windows apps fail to restore all of
 > the allocated resources upon exiting. They are thus lost to the system.
 > Eventually you must reboot your computer in order to recalim them.
 >
 > Every version of Windows claims to fix this problem.

 AM> If this is actually happening (and I wouldn't be all that
 AM> surprised) then essentially, the OS itself is leaking.  Unless it
 AM> is leaking system/ permanemt pages (what are they called in
 AM> Mocrosoft-land?) then the OS should do the same as for userspace
 AM> leaks.  The page file will suffer, but leaked pages should wash
 AM> out of physical RAM as a result of the normal OS operation.

 I thought the program reported back what resources that were being
 used. But it sound like the OS is watching out for unused RAM... Do I
 understand you correctly?

 Then that would be a good thing...



 > If anyone has MORE insight on this, I would be fasinated to read about
 > it.

 AM> If you are not already familiar with the concept of paged memory
 AM> (and specifically demand-paged virtual memory) then that would be
 AM> a good place to start.                                    




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