SUMMARY: swap space

From: Jiang Wei <jiang_at_ebu.ch>
Date: Mon, 24 Mar 2003 13:43:33 +0100

Thanks to :
Olle Eriksson
Gergen, Peter
Nemholt, Jesper Frank
Shaun.Racine

For their quick and clearly answer.

All of them tell us that I should use "lazy swap" instead of preallocated
mod.

by using a command: /sbin/sysconfig -q vm vm_swap_eager to show the value

and by edit /etc/sysconfigtab

vm:
        swapdevice = /dev/disk/dsk0b
        vm-swap-eager = 0

set vm-swap-eager = 0 instead of 1.

A very useful command also:
fuser -c /dev/disk/dsk0b
fuser -c /dev/disk/dsk2b

to show process using swap.


Thanks again for all of them.


My origial message is below:

----------------------------------------------------------------------------
----------

Dear Managers,

We have a Alpha 4000 with Tru64 V 5.1A, patched recently with
t64v51ab21as0004-20030206.tar, but we noticed that the server has a swapon
space below 10 % free shown at console,see below:

But there are no special process turn on, this message come even after a
reboot. There are nothing special either at crontab. Is there a method to
determine which process take all this swap space?

Any help would be appreciate, Thanks in advanced.

bash-2.04# swapon -s
swap space below 10 percent free
Swap partition /dev/disk/dsk0b (default swap):
    Allocated space: 70552 pages (551MB)
    In-use space: 1 pages ( 0%)
    Free space: 70551 pages ( 99%)

Swap partition /dev/disk/dsk2b:
    Allocated space: 76781 pages (599MB)
    In-use space: 1 pages ( 0%)
    Free space: 76780 pages ( 99%)


Total swap allocation:
    Allocated space: 147333 pages (1.12GB)
    Reserved space: 147009 pages ( 99%)
    In-use space: 2 pages ( 0%)
    Available space: 324 pages ( 0%)


**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.

This footnote also confirms that this email message has been swept by
MIMEsweeper for the presence of computer viruses.

www.mimesweeper.com
**********************************************************************
Received on Mon Mar 24 2003 - 12:44:24 NZST

This archive was generated by hypermail 2.4.0 : Wed Nov 08 2023 - 11:53:44 NZDT