How do you set 'swappiness'?

How do you set 'swappiness'?

Posted May 13, 2004 22:55 UTC (Thu) by ArsonSmith (guest, #5695)
In reply to: How do you set 'swappiness'? by southey
Parent article: 2.6 swapping behavior

edit /etc/sysctl.conf

add:
vm.swappiness = <value>

replace <value> with a number 1 to 100

Many people say just to add an echo <value> > /proc/sys/vm/swappiness

but this wont persist after a reboot. sysctl is a utility provided by most distributions to set this up after reboot. You can also see what all the configurable peramiters are but running

sysctl -A

I am a fan of sysctl as it also keeps your runtime kernel configuration stuff in a central location /etc/sysctl.conf and not in various places /etc/init.d/kernel_custom_stuff or /etc/rc5.d/local or what ever other places people like to make up to put this kind of stuff.

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