From: Andi Kleen <ak@muc.de>
To: Ashok Raj <ashok.raj@intel.com>
Cc: zwane@arm.linux.org.uk, discuss@x86-64.org, shaohua.li@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [patch 0/4] CPU hot-plug support for x86_64
Date: 23 May 2005 18:40:46 +0200 [thread overview]
Date: Mon, 23 May 2005 18:40:46 +0200 [thread overview]
Message-ID: <20050523164046.GB39821@muc.de> (raw)
In-Reply-To: <20050520221622.124069000@csdlinux-2.jf.intel.com>
On Fri, May 20, 2005 at 03:16:22PM -0700, Ashok Raj wrote:
> Andi: You had mentioned that you would not prefer to replace the broadcast IPI
> with the mask version for performance. Currently this seems to be the
> most optimal way without putting a sledge hammer on the cpu_up process.
I already put a sledgehammer to __cpu_up with that last
patch. Some more hammering surely wouldnt be a big issue. Unlike i386
we actually still have a chance to test all relevant platforms, so I
dont think it is a big issue.
What changes did you plan?
P.S.: An alternative would be to define a new genapic subarch that
you only enable when you detect cpuhotplug support at boot.
Again just commenting on the text, not patch sorry.
-Andi
next prev parent reply other threads:[~2005-05-23 16:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-20 22:16 Ashok Raj
2005-05-20 22:16 ` [patch 1/4] " Ashok Raj
2005-05-20 22:16 ` [patch 2/4] " Ashok Raj
2005-05-23 16:38 ` Andi Kleen
2005-05-23 16:58 ` Ashok Raj
2005-05-23 17:24 ` Andi Kleen
2005-05-23 17:32 ` Ashok Raj
2005-05-23 19:37 ` Rafael J. Wysocki
2005-05-24 11:49 ` Andi Kleen
2005-05-20 22:16 ` [patch 3/4] " Ashok Raj
2005-05-20 22:16 ` [patch 4/4] " Ashok Raj
2005-05-23 16:40 ` Andi Kleen [this message]
2005-05-23 16:54 ` [patch 0/4] " Ashok Raj
2005-05-23 17:12 ` Andi Kleen
2005-05-23 17:40 ` [discuss] " Ashok Raj
2005-05-24 5:46 ` Srivatsa Vaddagiri
2005-05-24 6:01 ` Ashok Raj
2005-05-24 8:53 ` Srivatsa Vaddagiri
2005-05-24 18:17 ` Andi Kleen
2005-05-24 11:50 ` Andi Kleen
2005-05-24 11:48 ` Andi Kleen
2005-05-24 17:01 ` Srivatsa Vaddagiri
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