From: Rob Gardner <rob.gardner@hp.com>
To: Andi Kleen <ak@suse.de>
Cc: xen-devel@lists.xensource.com, John L Griffin <jlg@us.ibm.com>
Subject: Re: Re: Fine-grained proxy resource charging
Date: Mon, 22 Aug 2005 09:28:43 -0600 [thread overview]
Message-ID: <4309EF2B.4090208@hp.com> (raw)
In-Reply-To: <20050822151505.GC19007@wotan.suse.de>
Andi Kleen wrote:
>>It's not a bad idea just because it's a hard problem.
>>
>>
>
>Hard, likely slow (x86 has no really cheap
>way to do microstate accounting), likely a lot of work,
>and you have to fix up every driver in existence for it.
>Not even talking about the VM which would need a kind
>of redesign for it. For example pdflushd when flushing a dirty page has
>no idea who dirtied it originally and there is simply no
>space in struct page to track such stuff.
>
>
Hey, we don't need an exact solution. Right now there is no accounting
at all for I/O overhead, so even a crude solution would be a giant step
in the right direction.
Rob
next prev parent reply other threads:[~2005-08-22 15:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-22 5:25 Fine-grained proxy resource charging John L Griffin
2005-08-22 13:18 ` Andi Kleen
2005-08-22 15:08 ` Rob Gardner
2005-08-22 15:15 ` Andi Kleen
2005-08-22 15:28 ` Rob Gardner [this message]
2005-08-22 15:25 ` John L Griffin
2005-08-22 15:39 ` Andi Kleen
[not found] <200508231916.MAA09719@viola.hpl.hp.com>
2005-08-23 20:36 ` John L Griffin
-- strict thread matches above, loose matches on Subject: below --
2005-08-24 16:35 Lucy Cherkasova
2005-08-24 17:13 ` Mark Williamson
2005-08-25 4:56 ` John L Griffin
2005-08-24 17:34 Lucy Cherkasova
2005-08-24 17:34 ` Mark Williamson
2005-08-25 22:02 Lucy Cherkasova
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