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- Path: sparky!uunet!cis.ohio-state.edu!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340
- From: dic5340@hertz.njit.edu (David Charlap)
- Newsgroups: comp.os.os2.misc
- Subject: Re: Above 16MB. Possible FAQ. Summary needed.
- Message-ID: <1992Aug18.171339.16425@njitgw.njit.edu>
- Date: 18 Aug 92 17:13:39 GMT
- References: <20783@sbsvax.cs.uni-sb.de> <1992Aug18.004642.18288@monu6.cc.monash.edu.au>
- Sender: news@njit.edu
- Organization: New Jersey Institute of Technology, Newark, N.J.
- Lines: 39
- Nntp-Posting-Host: hertz.njit.edu
-
- In article <1992Aug18.004642.18288@monu6.cc.monash.edu.au> parry@yoyo.cc.monash.edu.au (Tom J Parry) writes:
- >THIS IS GREAT! EXCELLENT! What could be better? Well, a little speed I
- >suppose. Things are definitely faster, much less swapping (eg on a big
- >find) BUT _CLOSING_ certain windows takes a while. Some windows
- >disappear instantly, but my folder windows pause for about a second or
- >two before closing. This never happened before GT16MB2
-
- Since ISA boards are physically incapable of using DMA to transfer
- data above the 16MB line, OS/2 has to copy data first. In other
- words, if you close the window and OS/2 has to write something to the
- disk, and that something is located in high memory (above 16MB), then
- the system has to move the data "south" of the 16MB line before
- writing it. This may require other data to be moved "north" or
- swapped to disk.
-
- At least, it's a good theory. It might also simply be a bug.
-
- >Also, what is the best program around for getting stats on memory usage.
- >Sort of a MEM for OS/2 or even better, something like MANIFEST (I live &
- >dream in hope).
-
- Not likely. What kind of info do you want? With a virtual memory
- system, all memory is either free, or can be made free. And you have
- all the swap space on your disk that can be allocated as well. You'd
- need many numbers, like:
-
- Number of free pages in memory
- Number of discardable pages in memory
- Number of pages that can be swapped to disk
- Amount of free swap space on disk
- Size of the largest contiguous block of memory
-
- etc...
-
- --
- |) David Charlap "I don't even represent myself
- /|_ dic5340@hertz.njit.edu sometimes so NJIT is right out!.
- ((|,)
- ~|~ Hi! I am a .signature virus, copy me into your .signature file.
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