Re: Slow swapon for big (12GB) swap

[Antonio Vargas]

On 4/10/06, Andrew Morton <akpm@xxxxxxxx> wrote:
> Grzegorz Kulewski <kangur@xxxxxxxxxx> wrote:
> >
> > I am using big swap here (as a backing for potentially huge tmpfs). And I
> >  wonder why swapon on such big (like 12GB) swap takes about 7 minutes
> >  (continuous disk IO).
>
> It's a bit quicker here:
>
> vmm:/usr/src/25# mkswap /dev/hda6
> Setting up swapspace version 1, size = 54031826 kB
> vmm:/usr/src/25# time swapon /dev/hda6
> swapon /dev/hda6  0.00s user 0.04s system 74% cpu 0.054 total
>
>
> > Is this expected?
>
> Nope.
>

I'm running swap on a 8G LVM logical volume and /tmp on tmpfs and it
works great (used for compilation & DVD-burning stagning area from
other hosts on the network), with no delays on swapon nor mount.


--
Greetz, Antonio Vargas aka winden of network

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