Date: Mon, 15 Jul 2013 08:24:09 -0700 From: Alfred Perlstein <alfred@ixsystems.com> To: Glen Barber <gjb@FreeBSD.org> Cc: Andre Oppermann <andre@freebsd.org>, stable@freebsd.org, re@freebsd.org Subject: Re: status of autotuning freebsd for 9.2 Message-ID: <51E41419.3040503@ixsystems.com> In-Reply-To: <20130715141300.GA1986@glenbarber.us> References: <51D90B9B.9080209@ixsystems.com> <51D92826.1070707@freebsd.org> <51E1061F.3050804@ixsystems.com> <51E398F3.40008@freebsd.org> <51E3EEAA.3040106@freebsd.org> <51E3EFA8.1050606@ixsystems.com> <20130715141300.GA1986@glenbarber.us>
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On 7/15/13 7:13 AM, Glen Barber wrote: > On Mon, Jul 15, 2013 at 05:48:40AM -0700, Alfred Perlstein wrote: >> On 7/15/13 5:44 AM, Andre Oppermann wrote: >>> On 15.07.2013 08:38, Andre Oppermann wrote: >>>> On 13.07.2013 09:47, Alfred Perlstein wrote: >>>>> Andre, we have a number of people running this patch in the >>>>> following configurations: >>>>> >>>>> 6-8GB ram + 10gigE ethernet using iozone over NFS. >>>> As you haven't seen any problems yet I've asked RE to green light >>>> the MFC. >>> RE has rejected the MFC out of fears for unexpected regressions. >>> >> That is unfortunate. I guess re@ doesn't understand that FreeBSD >> 9.2 will be unusable out of the box for doing 10gigE for more than a >> few microseconds. >> >> Can we not just do my original patch that has the check for 64bit >> pointers before unscaling maxusers? That would be dirt simple and >> just work with minimal risk. >> > IMHO, this is considered a new feature, and not a critical bug fix. re@ > asked from the start of the code slush to avoid new features, and at > this point, it is too late. It is not worth introducing possible > regressions, which will only delay the 9.2-RELEASE. > > Glen > OK, then we need a release notes telling people a sane value for nmbclusters and friends so that they know how to make 10gigE work. I'll poll my team for a value if someone else has one, that would be even better. -- Alfred Perlstein VP Software Engineering, iXsystems
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