superpages not solving "PV entries" limit warning
Charles Owens
cowens at greatbaysoftware.com
Thu May 10 15:52:36 UTC 2012
That's very helpful! I had read about that and wondered if it applied
to i386.
Should I have expected "superpages" to completely cure the condition...
or does it just help? Should I now be looking at tuning the related
pmap sysctls to give further relief?
Thanks!
Charles
On 5/10/12 11:24 AM, Alan Cox wrote:
> On Thu, May 10, 2012 at 2:32 AM, Adam Vande More
> <amvandemore at gmail.com <mailto:amvandemore at gmail.com>> wrote:
>
> On Wed, May 9, 2012 at 12:55 PM, Charles Owens
> <cowens at greatbaysoftware.com
> <mailto:cowens at greatbaysoftware.com>>wrote:
>
> > Hi fellow BSD-types,
> >
> > I have a buy system that forks lots of processes and I see
> repeatedly the
> > message: "Approaching the limit on PV entries, consider
> increasing either
> > the vm.pmap.shpgperproc or the vm.pmap.pv_entry_max tunable".
> >
> > System details:
> >
> > * 8.1-RELEASE-p2 i386 PAE kernel
> > * 6 GB RAM
> >
>
> The warning is not applicable any longer including your version as
> well as
> several previous ones. The warning has been removed from current
> releases.
>
>
> For amd64, yes, but not i386. It can't be removed from i386.
>
> Alan
>
>
>
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