Significant performance hit on recent upgrade

[Ultima]

last pid: 96327;  load averages: 41.78, 50.32, 50.07        up 1+05:19:23
 18:52:47
169 processes: 11 running, 158 sleeping
CPU: 24.4% user,  0.2% nice, 15.1% system,  0.1% interrupt, 60.3% idle
Mem: 12G Active, 43G Inact, 186G Wired, 8867M Free
ARC: 166G Total, 122G MFU, 38G MRU, 46M Anon, 753M Header, 5314M Other
Swap:


This is currently with poudriere que of 4000ish packages, right now at only
116 pkg per hour with 12 jails. Has been going for around 11 hours now.
Usually it would be done by now with around 350ish pkg per hour with other
jail versions running, only running the one right now.

On Fri, Mar 11, 2016 at 6:51 PM, Allan Jude <allanjude at freebsd.org> wrote:

> On 03/11/2016 18:49, Ultima wrote:
> > Hello,
> >
> >  Recently I upgraded to r296377, and notice a big hit in performance.
> This
> > system in question is a poudriere building system that usually has many
> > jails running building around 200-400 pkg per hour for each jail. After
> the
> > upgrade, it is rare to see over 100 pkg per hour built. Possible
> regression
> > on recent commit?
> >
> > Previously was running (sorry had git src at the time) 8b372d1(master)
> > built around a week ago. Any ideas what maybe causing this? I can provide
> > more details if needed, someone in irc also mentioned noticing a hit in
> > performance.
> >
> >
> > Ultima
> > _______________________________________________
> > freebsd-current at freebsd.org mailing list
> > https://lists.freebsd.org/mailman/listinfo/freebsd-current
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> >
>
> Are you using ZFS? What does your memory utilization look like?
> Can you provide the 'Mem' and 'ARC' lines from top(1) while building
> packages (ideally, a good 20+ minutes into such a build)?
>
> --
> Allan Jude
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