Re: more RAM, swap?
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On Friday 20 September 2002 15:22, Daniel Lönn wrote:
> It is a de facto -standard to have the double swap as you
> have ram.
However that rule is really outdated. It was introduced when the old Unix
versions kept a full image of their RAM layout on disc. With those Unix
version, your available virtual memory was exactly the size of your swap.
Linux (and most other UNIX versions today) uses a different approach: It
keeps as much in memory as prossible, and only puts as many pages in the swap
file/partition as necessary. So for Linux, your available virtual memory is
RAM + swap - some overhead (a few kBytes only, IIRC a single page of the
MMU).
Regards,
Sven Müller
- - IT - Network&Infrastructure -
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