SWAP is Neccassry ?

deepak_message · 06-05-2008, 01:43 AM

Hi All,

Why we create swap partition? Generally we create twice of RAM. if we create 1.5 times of RAM, then there is any performance effected on processor?

Thanks,

deepak_message · 06-05-2008, 01:45 AM

Hi All,

Why we create swap partition? Generally we create twice of RAM. if we create 1.5 times of RAM, then there is any performance effected on processor?

Thanks,

i92guboj · 06-05-2008, 01:50 AM

Quote:

Originally Posted by deepak_message

Hi All,

Why we create swap partition? Generally we create twice of RAM. if we create 1.5 times of RAM, then there is any performance effected on processor?

Thanks,

If the memory is full and there's swap, the kernel swaps partly the ram contents to the swap partition. If there isn't swap, the kernel starts closing programs without any previous warning. You decide.

David the H. · 06-05-2008, 01:56 AM

There must be hundreds of previous threads by now concerning the necessity of swap. I suggest you look at a few. But in short, think of swap space as "emergency RAM". It shouldn't be necessary most of the time, but when your system needs more memory than you have available, swap is good to have. The 1~2x RAM number is just a rule of thumb. It all really depends on how often and how much you expect you will use it. If you have a lot of RAM, then 2x is probably too much.