Subject: Re: SMP re-entrancy in kernel drivers/"bottom half?"
To: None <jonathan@dsg.stanford.edu>
From: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
List: tech-kern
Date: 02/23/2005 07:05:30
hi,
> If I had my 'druthers, I'd like to see our TCP restructured along the
> same lines as the TCP in IRIX. Ten years ago, I understand IRIX could
> handle 10 gigabits (GSN, basically HIPPI on steroids) with one CPU
> handling interrupts and packet demux , a second running the IP/TCP
> code, and a third doing the bcopy()s to userspace.
i'm not sure if it's a good idea for today's cpus
as passing mbufs among cpus increases cache misses.
YAMAMOTO Takashi