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From: Sebastian Kuzminsky <S.Kuzminsky@F5.com>
To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: About Transparent Superpages and Non-transparent superapges
Thread-Topic: About Transparent Superpages and Non-transparent superapges
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Date: Mon, 23 Sep 2013 21:30:03 +0000
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Cc: Sebastian Kuzminsky <S.Kuzminsky@F5.com>,
 Patrick Dung <patrick_dkt@yahoo.com.hk>,
 "ivoras@freebsd.org" <ivoras@freebsd.org>,
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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