From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] Support ia32 exec domains without CONFIG_IA32_SUPPORT
Date: Fri, 08 Oct 2004 08:08:03 +0000 [thread overview]
Message-ID: <16742.19171.341667.367766@napali.hpl.hp.com> (raw)
In-Reply-To: <41643EC0.1010505@intel.com>
>>>>> On Thu, 07 Oct 2004 16:44:09 -0700, Arun Sharma <arun.sharma@intel.com> said:
Arun> On 10/7/2004 6:27 AM, Christoph Hellwig wrote:
>> This was rejected for qemu on various arches already. Please do
>> it in your userland emulator.
Arun> I agree that there is no functionality issue here, but there
Arun> is a performance issue. Doing it in the userland emulator is
Arun> much slower. What's wrong with the patch ?
Arun> -Arun
Arun> PS: For others following this thread, the qemu stuff is at:
Arun> http://groups.google.com/groups?hl=en&lr=&threadm 030407063012%243336%40gated-at.bofh.it
Unfortunately, that thread ran out in a rather unhelpful manner, as
far as I can see. Rusty seemed to agree that the performance-hit of
doing it all in user-level was unacceptably high, but I didn't see any
actual numbers. There was a suggestion to decouple the altroot from
the personality which makes some sense, but nobody actually did
anything about it?
--david
next prev parent reply other threads:[~2004-10-08 8:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-06 18:51 [PATCH] Support ia32 exec domains without CONFIG_IA32_SUPPORT Arun Sharma
2004-10-07 13:27 ` Christoph Hellwig
2004-10-07 23:44 ` Arun Sharma
2004-10-08 8:08 ` David Mosberger [this message]
2004-10-08 22:37 ` Arun Sharma
[not found] ` <mailman.1097403036.11924@unix-os.sc.intel.com>
2004-10-11 21:05 ` Arun Sharma
2004-10-12 21:50 ` David Woodhouse
2004-10-12 22:46 ` Arun Sharma
2004-10-13 22:27 ` Arun Sharma
2004-10-14 7:32 ` David Mosberger
2004-10-14 8:25 ` David Woodhouse
2004-10-14 8:50 ` Jakub Jelinek
2004-10-14 17:53 ` Arun Sharma
2004-10-09 4:24 ` Luck, Tony
2004-10-10 10:10 ` Christoph Hellwig
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