Date: Mon, 23 Sep 2013 21:30:03 +0000 From: Sebastian Kuzminsky <S.Kuzminsky@F5.com> To: Adrian Chadd <adrian@freebsd.org> Cc: Sebastian Kuzminsky <S.Kuzminsky@F5.com>, Patrick Dung <patrick_dkt@yahoo.com.hk>, "ivoras@freebsd.org" <ivoras@freebsd.org>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: About Transparent Superpages and Non-transparent superapges Message-ID: <EF6D6322-D661-48BB-B814-CD1152DCF157@f5.com> In-Reply-To: <CAJ-Vmom8PRhJgVXzg=ASckJ4rOqrrFpxfiwM2cnD0WvYwBgm8w@mail.gmail.com> References: <mailman.2681.1379448875.363.freebsd-hackers@freebsd.org> <1379520488.49964.YahooMailNeo@web193502.mail.sg3.yahoo.com> <22E7E628-E997-4B64-B229-92E425D85084@f5.com> <1379649991.82562.YahooMailNeo@web193502.mail.sg3.yahoo.com> <B3A1DB16-7919-4BFA-893C-5E8502F16C17@f5.com> <CAJ-Vmom8PRhJgVXzg=ASckJ4rOqrrFpxfiwM2cnD0WvYwBgm8w@mail.gmail.com>
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On Sep 23, 2013, at 15:24 , Adrian Chadd wrote: > On 20 September 2013 08:20, Sebastian Kuzminsky <S.Kuzminsky@f5.com> wrot= e: > =20 > It's transparent for the kernel: all of UMA and kmem_malloc()/kmem_free()= is backed by 1 gig superpages. >=20 > .. not entirely true, as I've found out at work. :( Can you expand on this, Adrian? Did you compile & boot the github branch i pointed to, and run in to a situ= ation where kmem_malloc() returned memory not backed by 1 gig pages, on har= dware that supports it? --=20 Sebastian Kuzminsky
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