On Mon, Nov 06, 2006 at 12:40:00PM +0000, Darren J Moffat wrote: > Steve Lawrence wrote: > >On Fri, Nov 03, 2006 at 09:36:45AM +0000, Darren J Moffat wrote: > >>Steve Lawrence wrote: > >>>Given a lack of supportive feedback, I'm going to revoke the proposed > >>>amendment > >>>below. To mitigate a zone admin setting a problematic swap limit on the > >>>global > >>>zone, we will enhance zonecfg to: > >>> > >>> 1. Print a warning when setting swap (and lwp) limits on the global > >>> zone. Since the swap limit will not go into effect until reboot, > >>> the admin has a change to modify his setting before it takes > >>> affect. > >>> > >>> 2. Enforce a reasonable minimum when setting swap (and lwp) limits > >>> on the global zone. > >>What is the definition of reasonable ? I think that being a > >>default should be part of the case. > > > >I'm not sure what your second sentence means. As for the first, how about: > > I thought that what you meant was an actual number or percentage > of the total available system swap. Hence why I though it was a > default value worthy of being part of the interfaces this case > defines. > > >reasonable minimum: The amount of resource neccessary to boot a zone that > >is has a default installation and configuration. > > > >My "minimum", I do not mean the system default value. For example, for > >the following rctl, 128 is the system default value: > > > ># prctl -n project.max-shm-ids $$ > >process: 425781: -sh > >NAME PRIVILEGE VALUE FLAG ACTION > >RECIPIENT > >project.max-shm-ids > > privileged 128 - deny > > - > > system 16.8M max deny > > - > > > >zone.max-swap will not have a system default value. By default, every zone > >will have access to all swap available on the system. > > Okay. > > >By minimum, I mean the minimum that zonecfg will allow you to set. > > > >zonecfg> add capped memory > >zonecfg:capped memory> set zone.max-swap=1K > >Error, minimum value for zone.max-swap is ### > > Where does the ### come from. I think I'm missing something here. >
### is the "reasonable minimum" described above. Basing it in the system software requirements instead of an arbitrary % of total system swap seems better, especially since the total system swap can change at any time by "swap [ -a | -d ]'. -Steve > -- > Darren J Moffat _______________________________________________ zones-discuss mailing list zones-discuss@opensolaris.org
