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From: rcpt@eutrc4.urc.tue.nl (Piet Tutelaers)
Newsgroups: comp.unix.ultrix
Subject: no core: help needed
Keywords: Virtual memory configuration
Message-ID: <1317@eutrc3.urc.tue.nl>
Date: 12 Dec 89 15:30:54 GMT
Sender: news@eutrc3.urc.tue.nl
Lines: 36


We get regular the message `no core' on our uVAXII since we have recently
upgraded our memory capacity from 5 to 13 MB. We use two swap disks, 
the default on device /dev/ra0b and an extra on ra1b. The line in /etc/fstab
is:
	/dev/ra1b::sw:0:0:ufs:: 

The partition data of both swap disks (RD53 and RD54) is:
RD53: /dev/rra0a
partition     bottom        top       size    overlap
    b          15884      49323      33440    c,e
RD54: /dev/rra1a
partition     bottom        top       size    overlap
    b          15884      49323      33440    c

Vmstat shows the following data:
 procs     memory                       page      disk  faults          cpu
 r b w   avm  fre  re at  pi  po  fr  de  sr r1 r2 r0 x3  in  sy  cs us sy id
 0 1 0  1705 4931   0  0   0   0   0   0   0  0  0  1  0  11  16   3 10  5 86
 0 0 0  1144 4866   0  0   0   0   0   0   0  0  0  0  0   2  20   1  1  0 99

I have noticed that when the number of free pages is less than 3000 (column
fre), I cannot start up SliTeX for example.

a) Does anyone have suggestions how we can reconfigure the uVAXII in order to
   get more programs started?

b) Is it possible to see on a running system which swap devices are active?

c) Is it possible to find out what memory claim a program makes?

Thanks for any help! Piet
------------------------------------------------------------------
uucp:   rcpt@urc.tue.nl       | Piet Tutelaers        Room  RC 1.82
bitnet: rcpt@heithe5.BITNET   | Eindhoven University of  Technology
phone:  +31 (0)40 474541      | P.O. Box 513, 5600 MB Eindhoven, NL