On 6/2/05, Sean Knox <[EMAIL PROTECTED]> wrote: > Hey Bob, > > Thanks for the info. I originally asked as I'm seeing between 80 and 90 > percent interrupts on a gigabit firewall with some em(4) cards. I think > my issue may be expected given the scenario, so I'll pose that question > to the group in a different thread. > > thanks, > sk
I saw a pretty significant performance boost on some of my IDS boxen by putting the NICs on the same IRQ. There was also a tuning article written quite some time ago (no idea about it's current day relevance) that suggested the same. The IDS boxen have em(4) cards in them. Interrupt load dropped tremendously and we gained back a lot of dropped packets :) I had played around with recv timers and buffers and was able to get a 10% performance improvement before changing the cards to the same interrupt; I've since reverted those tunables as I don't see a difference anymore. --Bill
