The 2 x RAM rule is old, from the days when memory was expensive and systems
were often limited to 32 megs maximum. Now, it's unneeded -- if your system
really used swap equal in size to RAM (let alone twice RAM), that would
indicate the need to buy more RAM.
So ... in practice, I follow the 2X rule for systems with 64 megs of RAM or
less ... unless I'm setting up one with a small hard disk, in which case I
balance the needs of swap and filesystem space depending on what I plan to
use the system for. With 128 meg systems (the largest I actually have), I
still include a small swap partition, beacuse (I'm told) the kernel works
better with one, even if it remains unusaed, and because it provides a
cushion for an unexpected, transient load.
But unless I'm using a hard disk so immense that the space is all but
costless, I'll use either 64 or 128 megs of swap, not the 256 megs that the
2 X rule calls for.
At 01:36 PM 2/25/00 +0530, K Sambaiah wrote:
>Hi All,
> I would like to know about what is the ratio of swap partition
> should be given with respect to RAM. I am giving untill now as
> RAM SWAP
> 32 MB 64MB
> 64 MB 100MB
> and I am using RedHat 6.1. If we increse the RAM why should we increse
> the swap? If I go for 128MB or 256MB or higher what is the ideal swap
> space to give?
------------------------------------"Never tell me the odds!"---
Ray Olszewski -- Han Solo
Palo Alto, CA [EMAIL PROTECTED]
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