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Date:      Thu, 9 Dec 2004 21:32:06 +0200
From:      Ruslan Ermilov <ru@FreeBSD.org>
To:        Andre Oppermann <andre@FreeBSD.org>
Cc:        src-committers@FreeBSD.org
Subject:   Re: cvs commit: src/sys/netinet in_gif.c
Message-ID:  <20041209193206.GA65156@ip.net.ua>
In-Reply-To: <41B8709C.329DD195@freebsd.org>
References:  <200412061902.iB6J2hJ6000543@repoman.freebsd.org> <x7fz2i7la1.wl%suz@crl.hitachi.co.jp> <41B58367.EB32CF1@freebsd.org> <20041207150937.GD1336@ip.net.ua> <41B8709C.329DD195@freebsd.org>

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On Thu, Dec 09, 2004 at 04:34:52PM +0100, Andre Oppermann wrote:
> Ruslan Ermilov wrote:
> >=20
> > On Tue, Dec 07, 2004 at 11:18:15AM +0100, Andre Oppermann wrote:
> > > I hope to remove the ability to have pointers into the routing table
> > > before 6.0 release.
> > >
> > This would make my WIP OBE, which is nice.  But how are you going to
> > compensate for the performance loss of *not* having cached routes?
>=20
> Up to a couple of hundred kpps it doesn't matter and the only place
> where we have cached routes is in the various IP[46] tunnels.  The
> caching makes locking of the routing table more complex and expensive.
> Once that can be simplified there is a significant amount of lookup
> cost going away.
>=20
Ah right, I keep forgetting you already killed the ip_forward()
cached route.  ;)


Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer

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