Date: Wed, 10 Feb 2010 19:30:45 +0100 From: Ivan Voras <ivoras@freebsd.org> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: Strange problem with 8-stable, VMWare vSphere 4 & AMD CPUs (unexpected shutdowns) Message-ID: <9bbcef731002101030s119afcb6ndc9f5c9af649528c@mail.gmail.com> In-Reply-To: <9bbcef731002101026k5007075cqf97fc80404ac3fa7@mail.gmail.com> References: <hkujop$hsa$1@ger.gmane.org> <4B72D94A.8030509@icyb.net.ua> <hkup1g$763$1@ger.gmane.org> <4B72E93C.80102@icyb.net.ua> <9bbcef731002101003r203f5189xf139700a0d48afa0@mail.gmail.com> <4B72F67F.4000209@icyb.net.ua> <9bbcef731002101026k5007075cqf97fc80404ac3fa7@mail.gmail.com>
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On 10 February 2010 19:26, Ivan Voras <ivoras@freebsd.org> wrote: > On 10 February 2010 19:10, Andriy Gapon <avg@icyb.net.ua> wrote: >> on 10/02/2010 20:03 Ivan Voras said the following: >>> When you say "very unique" is it in the "it is not Linux or Windows" >>> sense or do we do something nonstandard? >> >> The former - neither Linux, Windows or OpenSolaris seem to have what we have. > > I can't find the exact documents but I think both Windows > MegaUltimateServer (the highest priced version of Windows Server, > whatever it's called today) and Linux (though disabled and marked > Experimental) have it, or have some kind of support for large pages > that might not be as pervasive (maybe they use it for kernel only?). I > have no idea about (Open)Solaris. VMWare documentation about large pages: http://www.vmware.com/files/pdf/large_pg_performance.pdf I think I remember reading that on Windows, the application must use a special syscall to allocate an area with large pages, but I can't find the document.
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