FreeBSD boxes as a 'router'...

[Barney Cordoba]

It's not an "opinion"; it obvious to anyone who had a mild understand of what pollingis. You've never compared it to moderation, which is what you should be using, becauseyou don't understand what you're doing.
If you set interrupt moderation to 2000 ints/sec, you're doing exactly the same thingas polling without the overheard.
You're comparing polling to random tuning. Which is why I say that anyone who recommends polling doesn't really understand what they're doing.

--- On Tue, 11/20/12, Jim Thompson <jim at netgate.com> wrote:

From: Jim Thompson <jim at netgate.com>
Subject: Re: FreeBSD boxes as a 'router'...
To: "Barney Cordoba" <barney_cordoba at yahoo.com>
Cc: khatfield at socllc.net, freebsd-net at freebsd.org
Date: Tuesday, November 20, 2012, 5:42 PM


On Nov 20, 2012, at 3:52 PM, Barney Cordoba <barney_cordoba at yahoo.com> wrote:
Anyone who even mentions polling should be discounted altogether. Polling
had value when you couldn't control the interrupt delays; but interrupt
moderation allows you to pace the interrupts any way you like without
the inefficiencies of polling.
You're entitled to your opinion, but experimental results have tended to show yours incorrect.
Jim