From: Ira Weiny <ira.weiny@intel.com>
To: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Giovanni Gherdovich <ggherdovich@suse.cz>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@suse.de>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
x86@kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/3] x86, sched: Bail out of frequency invariance if turbo frequency is unknown
Date: Mon, 6 Jul 2020 13:19:56 -0700 [thread overview]
Message-ID: <20200706201956.GA1390666@iweiny-DESK2.sc.intel.com> (raw)
In-Reply-To: <20200601233418.GA15416@ranerica-svr.sc.intel.com>
On Mon, Jun 01, 2020 at 04:34:18PM -0700, Ricardo Neri wrote:
> On Sun, May 31, 2020 at 08:24:52PM +0200, Giovanni Gherdovich wrote:
> > There may be CPUs that support turbo boost but don't declare any turbo
> > ratio, i.e. their MSR_TURBO_RATIO_LIMIT is all zeroes. In that condition
> > scale-invariant calculations can't be performed.
> >
> > Signed-off-by: Giovanni Gherdovich <ggherdovich@suse.cz>
> > Suggested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
>
> FWIW,
>
> Tested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Is this going to make it as a fix to 5.8?
Tested-by: Ira Weiny <ira.weiny@intel.com>
next prev parent reply other threads:[~2020-07-06 20:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-31 18:24 [PATCH v2 0/3] More frequency invariance fixes for x86 Giovanni Gherdovich
2020-05-31 18:24 ` [PATCH v2 1/3] x86, sched: check for counters overflow in frequency invariant accounting Giovanni Gherdovich
2020-06-03 14:22 ` Rafael J. Wysocki
2020-06-16 12:21 ` [tip: sched/core] " tip-bot2 for Giovanni Gherdovich
2020-10-22 8:46 ` [PATCH v2 1/3] " Peter Zijlstra
2020-10-22 12:21 ` Giovanni Gherdovich
2020-10-22 12:30 ` Peter Zijlstra
2020-05-31 18:24 ` [PATCH v2 2/3] x86, sched: Bail out of frequency invariance if turbo frequency is unknown Giovanni Gherdovich
2020-06-01 23:34 ` Ricardo Neri
2020-07-06 20:19 ` Ira Weiny [this message]
2020-06-03 14:23 ` Rafael J. Wysocki
2020-06-16 12:21 ` [tip: sched/core] " tip-bot2 for Giovanni Gherdovich
2020-05-31 18:24 ` [PATCH v2 3/3] x86, sched: Bail out of frequency invariance if turbo_freq/base_freq gives 0 Giovanni Gherdovich
2020-06-03 14:51 ` Rafael J. Wysocki
2020-06-16 12:21 ` [tip: sched/core] " tip-bot2 for Giovanni Gherdovich
2020-06-03 12:31 ` [PATCH v2 0/3] More frequency invariance fixes for x86 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=20200706201956.GA1390666@iweiny-DESK2.sc.intel.com \
--to=ira.weiny@intel.com \
--cc=bp@suse.de \
--cc=ggherdovich@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=ricardo.neri-calderon@linux.intel.com \
--cc=rjw@rjwysocki.net \
--cc=srinivas.pandruvada@linux.intel.com \
--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;
as well as URLs for NNTP newsgroup(s).