Date: Wed, 09 May 2012 13:55:26 -0400 From: Charles Owens <cowens@greatbaysoftware.com> To: freebsd-stable@freebsd.org Subject: superpages not solving "PV entries" limit warning Message-ID: <4FAAAF8E.40007@greatbaysoftware.com>
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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". My research suggested that enabling the "superpages" feature via sysctl vm.pmap.pg_ps_enabled was the best action... that doing so would quite the warning and improve memory mapping efficiency. As far as I can tell, however, "superpages" haven't done this -- well, to be specific, I can say at least that they haven't quieted the warning. Since I'm still seeing the warning, do I need to tune something else? Other comments? System details: * 8.1-RELEASE-p2 i386 PAE kernel * 6 GB RAM Thanks very much! Charles -- Charles Owens Great Bay Software, Inc.
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