status of autotuning freebsd for 9.2

[Outback Dingo]

On Mon, Jul 15, 2013 at 10:13 AM, Glen Barber <gjb at freebsd.org> 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.
>

Its kinda sad that it wount be MFC'd though I understand, it does help
10Gbe environments
Id give it a vote, and its perceived to have possible regressions, though
it might need more testing
other then a handful of users..... we can always patch........ until its
MFCd


>
> Glen
>
>