Date: Thu, 11 Nov 2010 12:49:52 +0200 From: Eugene Perevyazko <john@dnepro.net> To: freebsd-net@freebsd.org Subject: Re: igb dual-port adapter 1200Mbps limit - what to tune? Message-ID: <20101111104952.GA11275@traktor.dnepro.net> In-Reply-To: <ibfeec$qt$1@dough.gmane.org> References: <20101110110428.GA3505@traktor.dnepro.net> <ibfeec$qt$1@dough.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Nov 11, 2010 at 01:47:02AM +0100, Ivan Voras wrote: > On 11/10/10 12:04, Eugene Perevyazko wrote: > > >CPU is E5620@2.4GHz, 8 cores, irqs bound to different cores skipping HT > >ones. > > Unless you need the CPU cores for other tasks on the server, they won't > help you with network throughput here. Faster but fewer cores might. > > >Tried 2 queues and 1 queue per iface, neither hitting cpu limit. > > Are you sure you are not hitting the CPU limit on individual cores? Have > you tried running "top -H -S"? > Sure, even with 1queue per iface load is 40-60% on busy core, with 2 queues it was much lower. Now I've got the module for mb with 2 more ports, going to see if it helps. -- Eugene Perevyazko
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20101111104952.GA11275>