From: Stephane Eranian <eranian@hpl.hp.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 14/18] 2.6.17.9 perfmon2 patch for review: new i386 files
Date: Fri, 25 Aug 2006 08:10:43 -0700 [thread overview]
Message-ID: <20060825151043.GK5330@frankl.hpl.hp.com> (raw)
In-Reply-To: <200608251653.52898.ak@suse.de>
Andi,
On Fri, Aug 25, 2006 at 04:53:52PM +0200, Andi Kleen wrote:
> On Friday 25 August 2006 16:27, Stephane Eranian wrote:
>
> > I think I will drop the EXCL_IDLE feature given that most PMU stop
> > counting when you go low-power. The feature does not quite do what
> > we want because it totally exclude the idle from monitoring, yet
> > the idle may be doing useful kernel work, such as fielding interrupts.
>
> Ok fine. Anything that makes the code less complex is good.
> Currently it is very big and hard to understand.
>
> (actually at least one newer Intel system I saw seemed to continue counting
> in idle, but that might have been a specific quirk)
>
How is this affecting your RDTSC "emulation" with perfctr0?
--
-Stephane
next prev parent reply other threads:[~2006-08-25 15:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 8:06 Stephane Eranian
2006-08-23 10:58 ` Andi Kleen
2006-08-25 12:49 ` Stephane Eranian
2006-08-25 13:13 ` Andi Kleen
2006-08-25 14:27 ` Stephane Eranian
2006-08-25 14:53 ` Andi Kleen
2006-08-25 15:00 ` Stephane Eranian
2006-08-25 15:18 ` Andi Kleen
2006-08-25 15:10 ` Stephane Eranian [this message]
2006-09-12 14:04 ` Stephane Eranian
2006-09-12 14:25 ` Stephane Eranian
2006-08-28 16:10 ` Stephane Eranian
2006-08-23 23:18 ` Adrian Bunk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060825151043.GK5330@frankl.hpl.hp.com \
--to=eranian@hpl.hp.com \
--cc=ak@suse.de \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome