Re: swapping slow downs in 2.2.1

Idan Sofer (sofer@ibm.net)
Sat, 27 Mar 1999 21:40:13 +0000 (GMT)


On Thu, 18 Mar 1999, Stephen C. Tweedie wrote:

>>> is it a bug, or is it a feature?
>> Sure not a feature but neither a bug. To recover from that you can swapoff
>> -a as you did. Or maybe we could defrag the swap at runtime but I don't
>> think it's time to do that and I don't know how much it worth to do that.
>
> There are a number of ideas I've got which I may try for 2.2.3, but
> the only one which looks like an obvious win for 2.2 itself is to use
> the same allocation heuristics used in ext2fs, which is to look for
> large aligned free spaces in the swap bitmaps when we allocate swap
was that implemented on 2.2.3, or is it on plan?

anyway, it seems that after 17 days of uptime, even the swapoff/swapon
doesn't seem to reduce the slowdowns...

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