Date: Wed, 25 Jun 2003 12:35:17 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: Terry Lambert <tlambert2@mindspring.com> Cc: current@freebsd.org Subject: Re: Best way to get max KVA setting? Message-ID: <20030625123457.J7607@odysseus.silby.com> In-Reply-To: <3EF95C9D.2CE63283@mindspring.com> References: <20030625002841.X7607@odysseus.silby.com> <3EF95C9D.2CE63283@mindspring.com>
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On Wed, 25 Jun 2003, Terry Lambert wrote: > Mike Silbersack wrote: > > I could probably grep for this, but what's the best way to get a hold of > > the # of pages (or MB of ram) that max KVA is set to? I'm adding another > > autosize option, and I want to base it on min (KVA, ram) so that it > > doesn't balloon on boxes where ram >> KVA. > > I posted a patch about a month ago that did exactly this. > > It was for a guy who was was running with PAE enabled on an > 8G machine, and the autotuning was shooting him in the foot > when it tried to grab enough memory to create kmem_map entries > for the 8G of RAM in his 2G KVA space, and its head exploded. > > Let me know if you can't find it in the -current archives, and > I can dig it out for you, if you're willing to wait a day or > two. > > -- Terry I found the thread in question, but I didn't see a patch. Mike "Silby" Silbersack
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