Hi,

It is normal practise that we are creating double of RAM as Swap partition.

I would like to know if I am having sufficient amt of RAM then in that case wheather we can create SWAP partiton 100% of RAM.


Regards,

Manoj

That was once a "rule of thumb" but it never made much sense -- you need as much swap as you need (ha!) and that varies from system to system. Now memory is relatively cheap some systems run without swap at all -- and some people claim a performance improvement. One thing you need swap for is to suspend; then it needs to be a little bigger than RAM; if you are constructing a robust system you dedicate that "swap" space to suspending and don't use it for normal swapping.

If you want to watch your system to see how much swap space it needs, you can swap to file instead of partition; this is very flexible.

I have found that RedHat systems don't create more than 2GB swap on a default install.
Either on a machine with 4GB RAM or 8GB RAM, only 2GB of swap is created.
So as long as you have 2GB of swap, and plenty of RAM I would say that was the most you might need for normal purposes.
Of course others may disagree.
It largely depends on what type of work you are doing.
http://lissot.net/partition/partition-04.html#SwapSize