From: devzero@web.de
To: Jeremy Fitzhardinge <jeremy@goop.org>, Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Where do we stand with the Xen patches?
Date: Sun, 17 May 2009 20:37:29 +0200 [thread overview]
Message-ID: <720338507@web.de> (raw)
>> Aside from some whitespace issues around some Impact: lines, I
>> don't know of any outstanding problems. (I just pushed an updates
>> to these branches to fix those, and fold a change to address
>> Jesse's comment.)
>>
>> Please tell me if you have any further issues which prevents you
>> from pulling these changes. Otherwise I'd appreciate it if you
>> pulled them soon, as we're already on -rc5, and I have more
>> changes I'd like to prep for the next merge window.
>
>As in the past, my main worry is performance overhead of paravirt in
>general.
>
>The patches that dont affect any native kernel fast path are
>probably OK (but still pending final review).
>
>Regarding patches that do change the fastpath i'll do a round of
>measurements of CONFIG_PARAVIRT against !CONFIG_PARAVIRT kernels,
>and make up my mind based on that.
>
>You could accelerate this by sending some "perf stat" hard numbers
>to give us an idea about where we stand today.
>
> Ingo
maybe this is iust a stupid comment (please forgive, iŽm no advanced kernel
hacker), but canŽt the code inserted by the patches and which changes the
fastpath just #IFDEF`ed at the critical offsets ? (as building a dom0 kernel is
just another build target, isn`t it ?)
regards
roland
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next reply other threads:[~2009-05-17 18:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-17 18:37 devzero [this message]
2009-05-17 19:25 ` Where do we stand with the Xen patches? david
2009-05-17 19:33 ` Arjan van de Ven
-- strict thread matches above, loose matches on Subject: below --
2009-05-17 19:46 devzero
2009-05-18 1:54 ` Jeremy Fitzhardinge
2009-05-19 13:10 ` Chris Mason
2009-05-14 19:54 Jeremy Fitzhardinge
2009-05-15 18:35 ` Ingo Molnar
2009-05-15 19:59 ` Jeremy Fitzhardinge
2009-05-18 1:36 ` FUJITA Tomonori
2009-05-18 1:42 ` Jeremy Fitzhardinge
2009-05-18 8:40 ` Ingo Molnar
2009-05-19 5:27 ` FUJITA Tomonori
2009-05-19 13:03 ` Ingo Molnar
2009-05-19 15:30 ` FUJITA Tomonori
2009-05-19 15:56 ` Ian Campbell
2009-05-20 17:06 ` Jeremy Fitzhardinge
2009-05-21 8:54 ` FUJITA Tomonori
2009-05-21 10:27 ` Ian Campbell
2009-05-21 10:28 ` Ian Campbell
2009-05-21 10:39 ` FUJITA Tomonori
2009-05-21 10:48 ` Ian Campbell
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