Date: Wed, 20 Oct 2004 14:19:06 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Scott Long <scottl@FreeBSD.org> Cc: "M. Warner Losh" <imp@bsdimp.com> Subject: Re: cvs commit: src/lib/libc/i386/net htonl.S ntohl.S Message-ID: <200410201419.06181.jhb@FreeBSD.org> In-Reply-To: <41758B81.5090903@freebsd.org> References: <20041019071102.GA49717@FreeBSD.org> <200410191541.54269.jhb@FreeBSD.org> <41758B81.5090903@freebsd.org>
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On Tuesday 19 October 2004 05:47 pm, Scott Long wrote: > John Baldwin wrote: > > On Tuesday 19 October 2004 10:43 am, you wrote: > >>In message: <20041019073145.GA29746@thingy.tbd.co.nz> > >> > >> Andrew Thompson <andy@fud.org.nz> writes: > >>: > I am afraid that recompiling a kernel on i386 will require several > >>: > days. > >>: > >>: Chicken and the egg. To support i386 it must be recompiled, so you > >>: would have to do it on another box anyway. > >> > >>The only people that will seriously want to use i386 these days are > >>the folks that build embedded systems. Those you have to build on > >>some host then deploy to the target system. > >> > >>There are some benefits to having i386 in the tree. However, there > >>are also a number of different places in the tree where things are > >>sub-optimal because we still have support for i386 in there. The > >>desire to remove them is to make FreeBSD go faster on more modern > >>hardware. > > > > I think 6.0 is the place to drop 80386, not 5.x. I'm already working on > > a p4 branch (jhb_no386) to remove 80396 support from HEAD, but I think > > 5.x should be left as is in this regard. > > I agree that 80386 support should not be removed from RELENG_5, but I > don't see anything wrong with optmizing the common case and adding an > extra 80386-specific hurdle to 5.x. It would be nice to have some actual real-world benchmarks that show that this change actually buys something. Recompiling a kernel isn't too high of a barrier to entry, but recompiling userland is a bit much. Many moons ago we decided to not remove 80386 support from 5.x, and since we've already branched RELENG_5 I think we are pretty much stuck with that now. 6.0 won't be that long in coming and we can kill it for good there. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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