topic Re: Virtual memory configuration in Operating System - Linux

Virtual memory configuration

Vimala L — Sat, 17 Aug 2002 05:10:46 GMT

Hello there.

My m/c is Pentium III 500MHz with 320MB RAM. I have Redhat linux 7.3 installed.

One of the applications I want to install requires 512MB RAM. Since the hardware limit of m/c doesn't allow me to increase the RAM capacity futher, I wish to configure virtual memory and swap space to 512MB and 1GB respectively. I have enough of hard disk space.

I read about fdisk and mkswap and tried few things but going nowhere. Your inputs are very much appreciated.

Thanks,
Vimala.

Re: Virtual memory configuration

U.SivaKumar_2 — Sat, 17 Aug 2002 08:14:21 GMT

Hi,
Commands in order to create swap space
1) mkswap
2) swapon
man mkswap
man swapon
will give you more details.
After giving swapon you have put the swap entry
in /etc/fstab.
man fstab

regards.
U.SivaKumar

Re: Virtual memory configuration

I_M — Sat, 17 Aug 2002 08:39:50 GMT

Hi

the max swap partition size is 2GB. And you can use multiple swaps. Some people create swap on different HDs for performance reason. Set them as same priority.

/dev/hda7 swap swap defaults 0 0

This is my swap config.

fdisk steps.

# fdisk /dev/hda

"n" for create new partition.
"t" for set the partition type.
swap should be 82.
"w" for write & quit.

These are all you shold know.

Good luck