I would just add another swap partition. To give you an idea some of my
bigweb servers have 4 2gig swap partitions. And that is with 2 – 4 gigs
of ram.
What does the box do?
If you are going to do a lot of swapping then you might want to add
pri=0 to the fstab.
Here is what my fstab looks like.
/dev/sda3 swap swap defaults,pri=0 0 0
/dev/sdb2 swap swap defaults,pri=0 0 0
/dev/sda2 swap swap defaults,pri=0 0 0
/dev/sdb3 swap swap defaults,pri=0 0 0
With pri=0 swap will be used on all partition at the same time. When you
do not set pri=0 one swap partition will fill up first then the next and
so on.
But that would be over kill for most people. Only reason I have my swap
setup that way is due to the way apache locks memory when you have 2000+
apache processes running.
On Sat, 2003-12-13 at 22:16, Chris Sparks wrote:
Hi Gregory,
>The "easy" thing to do in this case is abandon the miminal swap you have
>and just make another (larger) swap partition to be used instead. The
>size of a swap partition is a matter of debate, but generally it sould
>be equal to or no more than twice as large as your physical memory.
>
Since I originally started with 128 MB this makes sense why it suggested
256 MB. I had to increase
the memory to 384 MB because of the boat load of seg faults I was getting.
>If you actually have space on the disk around the swap partition that
>you can resize into, there is nothing that prevents resizing the
>partition and running "mkswap" on the resized space. There's no real
>magic about swap files/partitions. Of course, you'll have to resize and
>mkswap in "single user mode" with swap disabled while you're
>manipulating the system.
>
My swap is at the end of the hard disk so I would be possible to extend
into it. Actually I have
the boot first, / second, and the swap last. I just didn't want to
clobber anything on the root disk
if I resized into it with the swap. How does one know if it is safe to
go into those sectors without
worry?
Also how do I go into single user mode?
>I see your concern about having more than one swap file/partition, but
>I'd suggest thtat this isn't really something to worry about. Swap
>space shouldn't be a consideration in normaml operation, and using more
>than 1 file/partition should not effect efficiency.
>
I agree, however, I am still intruding into the root partitition anyway.
Chris
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