From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: paulmck@linux.vnet.ibm.com
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>,
linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] sched/rt: don't try to balance rt_runtime when it is futile
Date: Thu, 15 May 2014 05:18:51 +0200 [thread overview]
Message-ID: <1400123931.5175.38.camel@marge.simpson.net> (raw)
In-Reply-To: <20140514154459.GE4570@linux.vnet.ibm.com>
On Wed, 2014-05-14 at 08:44 -0700, Paul E. McKenney wrote:
> In practice, not sure how much testing CONFIG_NO_HZ_FULL=y has received
> for -rt kernels in production environments.
I took 3.14-rt out for a quick spin on my 64 core box, it didn't work at
all with 60 cores isolated. I didn't have time to rummage, but it looks
like there are still bugs to squash.
Biggest problem with CONFIG_NO_HZ_FULL is the price tag. It just raped
fast mover performance last time I measured.
-Mike
next prev parent reply other threads:[~2014-05-15 3:18 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 15:08 Paul Gortmaker
2014-05-14 15:44 ` Paul E. McKenney
2014-05-14 19:11 ` Paul Gortmaker
2014-05-14 19:27 ` Paul E. McKenney
2014-05-15 2:49 ` Mike Galbraith
2014-05-15 14:09 ` Paul Gortmaker
2014-11-27 9:17 ` Wanpeng Li
2014-11-27 15:31 ` Mike Galbraith
2014-11-27 11:36 ` Wanpeng Li
2014-05-15 3:18 ` Mike Galbraith [this message]
2014-05-15 14:45 ` Paul E. McKenney
2014-05-15 17:27 ` Mike Galbraith
2014-05-18 4:22 ` Mike Galbraith
2014-05-18 5:20 ` Paul E. McKenney
2014-05-18 8:36 ` Mike Galbraith
2014-05-18 15:58 ` Paul E. McKenney
2014-05-19 2:44 ` Mike Galbraith
2014-05-19 5:34 ` Paul E. McKenney
2014-05-20 14:53 ` Frederic Weisbecker
2014-05-20 15:53 ` Paul E. McKenney
2014-05-20 16:24 ` Frederic Weisbecker
2014-05-20 16:36 ` Peter Zijlstra
2014-05-20 17:20 ` Paul E. McKenney
2014-05-21 4:29 ` Mike Galbraith
2014-05-21 4:18 ` Mike Galbraith
2014-05-21 12:03 ` Paul E. McKenney
2014-05-21 3:52 ` Mike Galbraith
2014-05-19 10:54 ` Peter Zijlstra
2014-05-19 12:40 ` Peter Zijlstra
2014-05-22 19:40 ` Paul Gortmaker
2014-11-27 11:21 ` Wanpeng Li
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=1400123931.5175.38.camel@marge.simpson.net \
--to=umgwanakikbuti@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rt-users@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=paul.gortmaker@windriver.com \
--cc=paulmck@linux.vnet.ibm.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/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
all inboxes | Powered by JetHome®