Al Boldi wrote:
>
> Thanks for asking. I'm rather surprised why nobody's noticing any of this
> slowdown. To be fair, it's not really a regression, on the contrary, 2.4 is
> lot worse wrt swapin and swapout, and Rik van Riel even considers a 50%
> swapin slowdown wrt swapout something like better than expected (see thread
> '[RFC] kswapd: Kernel Swapper performance'). He probably meant random
> swapin, which seems to offer a 4x slowdown.
>
Sorry for the late reply.
Well I think I reported this or another swap/tmpfs performance issue earlier ( http://marc.info/?t=116542915700004&r=1&w=2 ), we got the suggestion to increase /proc/sys/vm/page-cluster to 5, but we never came around to try it.
Maybe this was the reason for my report to be almost entirely ignored, sorry for that.
Regards,
Magnus
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