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- From: jahonen@cs.joensuu.fi (Jarmo Ahonen)
- Newsgroups: comp.os.os2.apps
- Subject: Re: Does anyone know...Swap File
- Message-ID: <1993Jan7.121840.4503@cs.joensuu.fi>
- Date: 7 Jan 93 12:18:40 GMT
- References: <1993Jan6.222411.502@njitgw.njit.edu> <1993Jan7.113929.24743@ousrvr.oulu.fi>
- Organization: University of Joensuu
- Lines: 28
-
- ojtv@phoenix.oulu.fi (Olli Vuolteenaho) writes:
-
- >I have an 8 MB system with GA+SP. The swapper.dat is initially 4 MB and in
- >most cases it stays that way. I've seen it grow to 6 MB in actual use but
- >it shrinks quite nicely when the demands for memory get smaller.
- >As an example of a worst case scenario (for me at least) I have now
- >Ckermit, Win-OS2 with Word for Windows 2.0, WordPerfect 5.1, Quattro pro 4.0
- >and Turbo C++ 3.1 running and the swap file is 7 MB.
-
- >Olli
- >__________________________________________________________________________
-
- At least to me it seems that swapper.dat does not grow constantly, but
- I have set 16 MB as its initial size. Sometimes it does, however, grow to
- 20-25 MB but shrinks down to 16 MB later on.
-
- Generally I'd recommend anybody to set the initial swapped.dat size so
- high that in *most* cases it would not grow. If you have several processes
- running, then a growing and fragmenting swap-file may have a very interesting
- effect on your machines performance. Especially if your applications are
- using the same disk as the swapper.dat.
-
- It is, in a sense, nice to realize that the old tuning tricks I used with
- UNIX machines some years ago seem to be usefull with my home PC now :-).
-
- BTW, has anybody a list of the most common tuning techniques for OS/2?
- Not like FAQ in hobbes, but something entirely devoted to techniques usefull
- in getting *BIG* codes to run as fast as possible...
-