CURRENT slow and shaky network stability

[Cy Schubert]

In message <201603300728.u2U7Sdwc092257 at gw.catspoiler.org>, Don Lewis 
writes:
> On 29 Mar, To: ohartman at zedat.fu-berlin.de wrote:
> > On 28 Mar, Don Lewis wrote:
> >> On 28 Mar, O. Hartmann wrote:
> >  
> >> If I get a chance, I try booting my FreeBSD 11 machine with less RAM to
> >> see if that is a trigger.
> > 
> > I just tried cranking hw.physmen down to 8 GB on 11.0-CURRENT r297204,
> > GENERIC kernel.  /boot/loader.conf contains:
> >   geom_mirror_load="YES"
> >   kern.geom.label.disk_ident.enable="0"
> >   kern.geom.label.gptid.enable="0"
> >   zfs_load="YES"
> >   vboxdrv_load="YES"
> >   hw.physmem="8G"
> > 
> > /etc/sysctl.conf contains:
> >   kern.ipc.shm_allow_removed=1
> > 
> > No /etc/src.conf and nothing of that should matter in /etc/make.conf.
> > 
> > 
> > This is what I see after running
> > 	poudriere ports -p whatever -u
> > 
> > last pid:  2102;  load averages:  0.24,  0.52,  0.36    up 0+00:06:54  14:1
> 3:51
> > 52 processes:  1 running, 51 sleeping
> > CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
> > Mem: 95M Active, 20M Inact, 1145M Wired, 39K Buf, 5580M Free
> > ARC: 595M Total, 256M MFU, 248M MRU, 16K Anon, 14M Header, 78M Other
> > Swap: 40G Total, 40G Free
> > 
> > No swap used, inactive memory low, no interactivity problems.  Next I'll
> > try r297267, which is what I believe you are running.  I scanned the
> > commit logs between r297204 and r297267 and didn't see anything terribly
> > suspicious looking.
> 
> No problems here with r297267 either.  I did a bunch of small poudriere
> runs since the system was first booted.  Usable RAM is still dialed back
> to 8 GB.  A bit of swap is in use, mostly because nginx, which has been
> unused since the system was booted, got swapped out.  Inactive memory is
> low now that poudriere is done.
> 
> last pid: 75471;  load averages:  0.21,  0.15,  0.19    up 0+07:36:07  00:24:
> 00
> 50 processes:  1 running, 49 sleeping
> CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
> Mem: 5988K Active, 14M Inact, 2641M Wired, 41K Buf, 4179M Free
> ARC: 790M Total, 575M MFU, 169M MRU, 16K Anon, 9618K Header, 36M Other
> Swap: 40G Total, 50M Used, 40G Free
> 
> Do you use tmpfs?  Anything stored in there will get stashed in inactive
> memory and/or swap.

Tmpfs objects are treated as any other in memory. If the pages are recent 
enough they will be active.


-- 
Cheers,
Cy Schubert <Cy.Schubert at komquats.com> or <Cy.Schubert at cschubert.com>
FreeBSD UNIX:  <cy at FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.