What is the meaning of this warn?

Julien Cigar jcigar at ulb.ac.be
Mon Jul 26 08:10:24 UTC 2010

On 07/26/2010 07:48, Jason wrote:


> My freebsd server offer service to thousands of clients.
> I found lots of warning in the /var/log/message like this :"Approaching
> the limit on PV entries, consider increasing either the
> vm.pmap.shpgperproc or the vm.pmap.pv_entry_max tunable"

You probably have a lot of processes which use shared memory ..?
Enabling superpages (vm.pmap.pg_ps_enabled=1 in loader.conf) should 
resolve the problem (superpages have been added in 7.2)

> My question is :
> 1.what is the meaning of PV?
> 2.Although there are lots of this warning,my server works still well.
> Could someone explain the meaning of this warning ?
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"

No trees were killed in the creation of this message.
However, many electrons were terribly inconvenienced.

More information about the freebsd-questions mailing list