From: Andi Kleen <andi@firstfloor.org>
To: Mike Galbraith <bitbucket@online.de>
Cc: Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, x86@kernel.org,
Andi Kleen <ak@linux.intel.com>,
lenb@kernel.org, tglx@linutronix.de, peterz@infradead.org
Subject: Re: [PATCH] Trace idle entry and exit times
Date: Sat, 7 Dec 2013 18:29:26 +0100 [thread overview]
Message-ID: <20131207172926.GD21717@two.firstfloor.org> (raw)
In-Reply-To: <1386404544.5673.88.camel@marge.simpson.net>
> > Well that one is obvious. I mean more the subtle problems.
>
> Yeah, not subtle. SGI could use C2 as power supply stress tester.
This is only on system where the APIC timer does not tick in deep idle.
At this point these are 5+ year old systems.
There were some ideas of breaking up that lock, but they were never
fully implemented.
-Andi
prev parent reply other threads:[~2013-12-07 17:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-07 0:46 [PATCH] Trace idle entry and exit times Andi Kleen
2013-12-07 4:57 ` Mike Galbraith
2013-12-07 5:20 ` Andi Kleen
2013-12-07 8:22 ` Mike Galbraith
2013-12-07 17:29 ` Andi Kleen [this message]
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=20131207172926.GD21717@two.firstfloor.org \
--to=andi@firstfloor.org \
--cc=ak@linux.intel.com \
--cc=bitbucket@online.de \
--cc=lenb@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=x86@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