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- Organization: Freshman, Physics, Carnegie Mellon, Pittsburgh, PA
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- Newsgroups: comp.os.linux
- Message-ID: <MebGaou00Vp=EHMFNy@andrew.cmu.edu>
- Date: Thu, 27 Aug 1992 15:15:00 -0400
- From: Frank T Lofaro <fl0p+@andrew.cmu.edu>
- Subject: Re: Up and Running linux
- In-Reply-To: <1992Aug26.175330.17630@pool.info.sunyit.edu>
- References: <BtK3Ft.JFM@mentor.cc.purdue.edu> <trussell.714780309@cwis>
- <1992Aug26.175330.17630@pool.info.sunyit.edu>
- Distribution: usa
- Lines: 37
-
- Excerpts from comp.os.linux (USENET): 26-Aug-92 Re: Up and Running linux
- ujlh@pool.info.sunyit.edu (James Henrickson) (2551)
-
- >It is not a pretty sight. I just installed Linux on a second machine, a
- >386SX-25 with 2 MB of RAM. I have 880K free after the kernel is loaded,
- >and bash takes a huge chunk of that. I can run kermit but not shell out
- >very often because I usually get a lot of "out of memory" errors. (Swapping
- >doesn't seem to eliminate these error messages, maybe my "working set" is
- >too big to fit in 880K.) When I *AM* able to run a command from within
- >kermit, it is S-L-O-W.
-
- Unless my understanding of VM is severly flawed (I hope not), having
- very low physical memory should *NOT* cause errors (as long as the
- kernel fits in memory, but it does, since it boots), as long as physical
- memory+swap space is sufficient and swapping is on. You should even be
- able to run a program that in and of itself is larger than all of the
- available physical memory. This assumes that VM on your setup and on
- Linux in general is working right (and that I'm not confused about VM :)
-
- A couple of questions:
-
- 1. Are you sure you have enough swap space on disk?
- 2. Did you properly set up the swap partition (set partition id to swap,
- mkswap) or swap file (using mkswap)?
- 3. Did you remember to enable swapping (using swapon) in /etc/rc or on
- the command line?
-
- If the answers to these are all yes:
-
- 4. Are you using a SCSI disk? (I heard there were problems with SCSI and
- VM, but I could be off-base here).
-
- I'd like to know for myself: Is there any difference, as far as a user
- should be concerned, between swap and physical memory, other than
- performance, and assuming that swapping is enabled? Do some programs
- *need* a certain amount of real, physical memory?
-
-