Date: Sun, 18 May 2003 05:25:59 -0400 From: Mike Tancsa <mike@sentex.net> To: Tony Sarendal <tsar@polarcap.org> Cc: freebsd-net@freebsd.org Subject: Re: polling(4) and Gigabit Message-ID: <o1kecvcnnmudraktm61ibi4rdr5kk8ce6e@4ax.com> In-Reply-To: <oWwt3C.A.dVL.Hwzx-@coal.sentex.ca> References: <oWwt3C.A.dVL.Hwzx-@coal.sentex.ca>
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The em driver has polling support in STABLE (post 4.8R). The limitation is not so much the NIC, but the way the NIC is serviced via interrupts in non polling modes. There are some very good discussions posted already you can get via Google on what you can and cant do and what you might expect performance wise. ---Mike On Sun, 18 May 2003 09:53:26 +0200, in sentex.lists.freebsd.net you wrote: > > From what I can see nge is the only polling driver for >Gig NICs, looking at 4.8. Has anyone done any performance >tests on this ? I'm interested in knowing what can of >bandwidth/pps one actually can achieve on a PC router. > >If the NIC now is the limitation(?), how much OS resources >do I have left after the NIC is running at 100% ? > >I'm looking at building a new network, using pc routers >for some of the bgp stuff can save quit a lot of money. > >/Tony S > >_______________________________________________ >freebsd-net@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-net >To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" Mike Tancsa (mike@sentex.net) http://www.sentex.net/mikehelp
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