[PATCH] TDB traverse lock changes for massive AD DC perf improvement

[Volker Lendecke]

On Fri, Apr 07, 2017 at 08:23:59AM +0200, Ralph Böhme wrote:
> On Fri, Apr 07, 2017 at 08:18:14AM +0200, Volker Lendecke via samba-technical wrote:
> > On Fri, Apr 07, 2017 at 05:28:02PM +1200, Douglas Bagnall via samba-technical wrote:
> > > I had a go at it. Attached.
> > > 
> > > cheers,
> > > 
> > > Douglas
> > 
> > Thanks, looks interesting! Attached find a version with a bit of
> > logging beyond strace. Unsurprisingly works fine on debian jessie. Now
> > lets find someone with a Solaris box :-)
> 
> Is this the expected output?
> 
> ---8<---
> slow at login [login]:~ > ssh unstable10x 
> Last login: Fri Apr  7 08:22:49 2017 from login.bo.opencs
> Sun Microsystems Inc.   SunOS 5.10      Generic January 2005
> slow at unstable10x [global]:~ > gcc -o fcntl_deadlock fcntl_deadlock.c 
> slow at unstable10x [global]:~ > ./fcntl_deadlock 
> usage: ./fcntl_deadlock <filename>
> slow at unstable10x [global]:~ > ./fcntl_deadlock fcntl_deadlock
> process 1 lock ofs=0 len=2: Resource temporarily unavailable

I guess you need a separate file, not the executable itself :-)

Volker