From: Kip Macy <kip.macy@gmail.com>
To: Jacob Gorm Hansen <jacobg@diku.dk>
Cc: xen-devel@lists.xensource.com
Subject: Re: address space reorganization
Date: Wed, 13 Apr 2005 20:14:19 -0700 [thread overview]
Message-ID: <b1fa291705041320145d40b67c@mail.gmail.com> (raw)
In-Reply-To: <425DDE90.4070702@diku.dk>
> > That works OK for the kernel, but you might have user space apps that
> > have adapted their behviour based on what the've found in /proc/cpuinfo.
>
> A compromise then would be to lie to userspace and still recalibrate the
> kernel.
If you're saying what I think you are - I don't think people who have
customized their apps for SSE2 would like that.
You'll either have to have xend propagate a bitmask of the cpuid
capabilities so that xfrd won't migrate it or you tell users that "the
behaviour is undefined" if they use migration in a heterogeneous
cluster.
-Kip
next prev parent reply other threads:[~2005-04-14 3:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-14 2:26 address space reorganization Ian Pratt
2005-04-14 3:08 ` Jacob Gorm Hansen
2005-04-14 3:14 ` Kip Macy [this message]
2005-04-14 3:38 ` Jacob Gorm Hansen
2005-04-14 16:00 ` Adam Heath
2005-04-14 17:54 ` Rik van Riel
2005-04-14 18:15 ` Kip Macy
2005-04-14 18:20 ` Rik van Riel
-- strict thread matches above, loose matches on Subject: below --
2005-04-14 19:03 Ian Pratt
2005-04-19 19:52 ` Chris Wedgwood
2005-04-13 17:59 Gerd Knorr
2005-04-13 19:29 ` Keir Fraser
2005-04-14 1:45 ` Keir Fraser
2005-04-14 2:18 ` Jacob Gorm Hansen
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