Messages in this thread | | | Date | Fri, 8 Jan 1999 11:07:51 +0000 (GMT) | From | Matthew Kirkwood <> | Subject | Re: Interleaving swap and filesystem to reduce seek times |
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On Thu, 7 Jan 1999, Oskar Pearson wrote:
> If we were to interleave the swap and filesystem, the seek time would > (for machines with one disk, at least) be reduced.
An interesting idea. You could simulate this by nearly filling up a biggish partition near the middle of the disk and then making a swap file:
$ df -k [ note that /home had 300M free ] $ dd if=/dev/zero of=/home/fill.tmp bs=1M count=230 $ dd if=/dev/zero of=/home/new.swap bs=1M count=64 $ rm -f /home/fill.tmp $ swapoff -a $ mkswap -f /home/new.swap $ swapon /home/new.swap
or similar.
Unfortunately, ext2 is a little too resistant to fragmentation for this to work well, I suspect (although nearly filling up the disk first helps).
Matthew.
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