[PATCH] TDB traverse lock changes for massive AD DC perf improvement
abartlet at samba.org
Wed Apr 5 10:31:53 UTC 2017
On Wed, 2017-04-05 at 11:51 +0200, Stefan Metzmacher via samba-
> Am 05.04.2017 um 01:50 schrieb Andrew Bartlett via samba-technical:
> > On Wed, 2017-04-05 at 10:42 +1200, Andrew Bartlett wrote:
> > > On Sat, 2017-04-01 at 18:44 +1300, Andrew Bartlett via samba-
> > > technical
> > > wrote:
> > > >
> > > > Aside from a good delay so others can comment, what would you
> > > > recommend
> > > > I do next towards progressing this patch?
> > >
> > > Can I please get a good eye over and a team review for this
> > > patch?
> > >
> > > Thanks,
> > >
> > > Andrew Bartlett
> > The attached patch takes on board the 80 column feedback (I've also
> > found an emacs mode that is helpful but unobtrusive).
> > I hope this meets with your approval, as it makes a massive
> > difference
> > to our Samba AD DC performance.
> > Please review. If reviewed, I'll push with a patch that adds new
> > performance tests that I'm keen to get in.
> I'm wondering about all the readonly checks in
> we already handle that in _tdb_transaction_start().
> I'm a bit nervous about the solaris10 problem.
I am to. I only got game to formally propose it when Jeremy
essentially proclaimed it dead :-)
> Ralph gave me access to a solaris 10 box, I'll try to reproduce the
> problem there and check if we deadlock with the current code.
For the record (I included the git hashes of the history because it was
non-trivial to dig up), do you know or remember what the original
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba
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