Date: Sat, 07 Jan 2006 13:24:02 -0700 From: Scott Long <scottl@samsco.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Andre Oppermann <andre@freebsd.org>, current@freebsd.org Subject: Re: FreeBSD handles leapsecond correctly Message-ID: <43C02362.2070009@samsco.org> In-Reply-To: <200601071940.k07JeHt3095158@apollo.backplane.com> References: <73774.1136109554@critter.freebsd.dk> <20060101035958.A86264@xorpc.icir.org> <43B7E1EC.5090301@mac.com> <200601060636.k066aNYn079015@apollo.backplane.com> <43BFEB2E.4040303@freebsd.org> <200601071940.k07JeHt3095158@apollo.backplane.com>
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Matthew Dillon wrote: [...] I'm about to release a patch to Andre that should allow if_em to fast forward 1mpps or more on his hardware, using no shortcuts or hacks other than the inherent shortcut that the ffwd code provides. The approach I'm taking also works on the other high performance network interfaces. There is also a lot of work going on to streamline the ifnet layer that will likely result in several hundred nanoseconds of latency being removed from there. I'd personally love to see DragonFly approach this level of performance. Given that it took FreeBSD about 3-4 years to slog through setting up and validating a new architecture before we could start focusing on performance, I think that DFly is right on track on the same schedule. Hopefully the results are as worthwhile on DFly in the future as they are on FreeBSD right now. Scott
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