From: "David Mosberger-Tang" <dmosberger@gmail.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled
Date: Wed, 05 Sep 2007 15:47:25 +0000 [thread overview]
Message-ID: <ed5aea430709050847o7c9f1d32ted06c8546e2da5f2@mail.gmail.com> (raw)
In-Reply-To: <200708301338.34246.protasnb@gmail.com>
In my opinion, machvec is a bad idea for a temporary workaround.
You'll need to create new header files etc etc all just for a
short-lived workaround. Just my 2 cents.
--david
On 9/5/07, Natalie Protasevich <protasnb@gmail.com> wrote:
> On 9/5/07, Robin Holt <holt@sgi.com> wrote:
> > > No :) those interested are big hardware makers of large scaled out
> > > boxes, such as HP, UIS. They are using own asics and are not
> > > necessarily being able to keep chipset native capabilities intact. As
> > > I said in the preamble, the mechanism has to be there so they can turn
> > > the ptc.g off and run the OS.
> >
> > This really sounds like it is best done as a machvec. Currently, Altix
> > (sn2) does not have a ptc.g that spans nodes. We have our own tlb purge
> > mechanism which is very flexible and scalable. Maybe it would be best
> > to follow that example. To repeat Bjorn's comments, this area can be
> > fraught with _VERY_ difficult to diagnose problems. A boot test can
> > hardly be expected to uncover all the races so be patient while we walk
> > through this code.
> >
> All right, all right ... :) I'll do the machvec then. Thanks guys,
> will peek into the sn2 to get an idea.
>
> Regards,
> --Natalie
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--
Mosberger Consulting LLC, http://www.mosberger-consulting.com/
next prev parent reply other threads:[~2007-09-05 15:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-30 20:38 [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled Natalie Protasevich
2007-08-31 1:15 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be Zou Nan hai
2007-08-31 1:45 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to bedisabled Luck, Tony
2007-08-31 1:48 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to Zou Nan hai
2007-09-03 8:06 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to bedisabled Natalie Protasevich
2007-09-03 8:06 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled - take 2 Natalie Protasevich
2007-09-03 9:21 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled Jes Sorensen
2007-09-03 9:37 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled - take 2 Jes Sorensen
2007-09-04 8:46 ` Robin Holt
2007-09-04 9:03 ` Luck, Tony
2007-09-04 14:58 ` Natalie Protasevich
2007-09-04 16:05 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled Natalie Protasevich
2007-09-04 19:59 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled - take 2 Bjorn Helgaas
2007-09-04 21:20 ` Natalie Protasevich
2007-09-05 13:35 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be Jes Sorensen
2007-09-05 13:57 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled Robin Holt
2007-09-05 15:29 ` Natalie Protasevich
2007-09-05 15:47 ` David Mosberger-Tang [this message]
2007-09-05 16:01 ` Natalie Protasevich
2007-09-06 16:36 ` David Mosberger-Tang
2007-09-06 18:00 ` Natalie Protasevich
2007-09-07 7:38 ` Luck, Tony
2007-09-07 8:38 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be Jes Sorensen
2007-09-07 16:11 ` [PATCH 1/1] Allow global purge traslation cache (ptc.g) to be disabled Bjorn Helgaas
2007-09-07 16:25 ` Natalie Protasevich
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