From: "H. Peter Anvin" <hpa@zytor.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Len Brown <lenb@kernel.org>,
x86@kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, Len Brown <len.brown@intel.com>,
stable@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Mike Galbraith <efault@gmx.de>, Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH] x86 idle: repair large-server 50-watt idle-power regression
Date: Thu, 19 Dec 2013 11:22:01 -0800 [thread overview]
Message-ID: <52B34759.3010009@zytor.com> (raw)
In-Reply-To: <20131219181948.GD32508@gmail.com>
On 12/19/2013 10:19 AM, Ingo Molnar wrote:
>
> ( It would also be nice to know whether MONITOR loads that cacheline
> into the CPUs cache, and in what state it loads it. )
>
I would assume that is implementation-dependent. However, one plausible
implementation is to load the cache line into the cache in shared state
and monitor for evictions.
-hpa
next prev parent reply other threads:[~2013-12-19 19:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-18 21:44 [PATCH] x86 idle: repair large-server 50-watt idle-power regression Len Brown
2013-12-19 12:22 ` Ingo Molnar
2013-12-19 14:40 ` H. Peter Anvin
2013-12-19 15:45 ` Borislav Petkov
2013-12-19 15:55 ` H. Peter Anvin
2013-12-19 16:02 ` Ingo Molnar
2013-12-19 16:09 ` H. Peter Anvin
2013-12-19 16:13 ` H. Peter Anvin
2013-12-19 16:21 ` Peter Zijlstra
2013-12-19 16:50 ` H. Peter Anvin
2013-12-19 17:07 ` Ingo Molnar
2013-12-19 17:25 ` Peter Zijlstra
2013-12-19 17:36 ` Peter Zijlstra
2013-12-19 18:05 ` H. Peter Anvin
2013-12-19 18:14 ` Ingo Molnar
2013-12-19 17:50 ` Peter Zijlstra
2013-12-19 18:18 ` Ingo Molnar
2013-12-19 21:05 ` H. Peter Anvin
2013-12-19 21:17 ` Ingo Molnar
2013-12-19 18:10 ` Ingo Molnar
2013-12-19 18:09 ` H. Peter Anvin
2013-12-19 18:19 ` H. Peter Anvin
2013-12-19 18:23 ` Ingo Molnar
[not found] ` <CA+55aFzGxcML7j8CEvQPYzh0W81uVoAAVmGctMOUZ7CZ1yYd2A@mail.gmail.com>
2013-12-19 18:43 ` Ingo Molnar
2013-12-19 18:19 ` Ingo Molnar
2013-12-19 19:22 ` H. Peter Anvin [this message]
2013-12-19 19:27 ` Peter Zijlstra
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=52B34759.3010009@zytor.com \
--to=hpa@zytor.com \
--cc=bp@alien8.de \
--cc=efault@gmx.de \
--cc=len.brown@intel.com \
--cc=lenb@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=stable@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
--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