Thursday, October 15, 2009

swap file creating

when some programs consume huge amount of virtual memory, make use of temporary SWAP space.
This can be achieved by mkswap and swapon

* For EG: To have 64 MB extra swap space

dd if=/dev/zero of=/swapfile bs=1024 count=65535
mkswap /swapfile
swapon /swapfile

where “/swapfile” is the swap filename. The location of this file depends on the availabilty of File System’s Space and the write permission.

when you dont need this anymore, remove it using the following commands

swapoff /swapfile
rm /swapfile

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