In message <61BB2B26A91FD211A4350000F87AED1401EA91CB@kpamkex>, arto.huusko@cop.
fi writes:
>To further tweak performance you could turn rfc1323 extensions (or smthing)
>off with sysctl, although this does not have any big effect.

Your milage may vary.  rfc1323 made the difference between sup taking 2
hours and a *week* for me.

-s