Two things missing from Ubuntu - Backup and Firewall - can we havethem in Horay

Erik Bågfors zindar at gmail.com
Wed May 18 16:09:41 UTC 2005


First of
2GB is not that much today.  At work, we consider that the minimum to
use. On my laptop and my home-computers I have 1GB.

Second.  There are still very good reasons to have a swap.  You should
ALWAYS have a swap area. What happens is that linux uses the free
memory you have to hold data cache (such as file cache/buffers).

That means that when you write or read a file it doesn't always go to
the disk, but instead handles it in memory. The more free memory, the
more space for file cache, the faster "disk" operation (because they
don't have to go to disk every time).

If you have applications that are keept in memory, but not used (such
as GDM for example), they still take up space from your memory. That
way, you get less free space for file cache (slower "disk"
operations).  Now, the idea of having the swap is to take the data you
no longer need in memory right now, and put them on swap, so that you
get more space for file cache (for faster "disk" operations, again).

Right now on my laptop, which has 1 GB RAM, I still have 200MB in the
swap, giving me more free space for buffers and cache.

Read this for example
http://sourcefrog.net/weblog/software/linux-kernel/swap.html

/Erik, laptop, 1GB ram, 1GB swap.

On 1/12/05, machiner <ulist at gs1.ubuntuforums.org> wrote:
> 
> ok -- first:
> 
> 2GB of RAM!!?!??!?!?!  Holy computing needs, batman!
> 
> ...and #2:
> 
> Why do you need a swap  with 2gb or ram?
> 
> --
> machiner
> 
> --
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
> http://lists.ubuntu.com/mailman/listinfo/ubuntu-users
>




More information about the ubuntu-users mailing list