On Sat, Aug 04, 2007 at 09:40:14AM +0200, Wojciech Puchar wrote:
> >>loaded servers for over a year with FreeBSD 6.2
> >
> >Lucky you ;) Doesn't mean that parts of the kernel you're not using
> >can handle it.
> well - it exactly mean that it can :)

I know for a fact that MAXPHYS cannot safely just be increased without
other work, so if you are interested in working on this you should
study more carefully how it is used directly and indirectly by other
parts of the kernel.

> >This is pageout, not pagein.  Probably the negative effect is that the
> >when paging out the system does I/O in larger chunks, improving swap
> >throughput but increasing delays for other applications.
> actually i tested changing it to 64 it was positive improvement, but after 
> shutting down kernel crashed.

Did you measure interactivity and other aspects of performance during

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