From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, hpa@zytor.com,
tglx@linutronix.de, mingo@elte.hu
Subject: Re: [tip:core/rcu] Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"
Date: Sat, 21 May 2011 06:18:44 -0700 [thread overview]
Message-ID: <20110521131844.GE2271@linux.vnet.ibm.com> (raw)
In-Reply-To: <4DD70120.9090801@kernel.org>
On Fri, May 20, 2011 at 05:02:40PM -0700, Yinghai Lu wrote:
> On 05/20/2011 04:49 PM, Paul E. McKenney wrote:
> > On Fri, May 20, 2011 at 04:16:28PM -0700, Yinghai Lu wrote:
> ...
> >>
> >> the same one i sent out before, but let DEBUG_LOCKING_API_SELFTESTS disabled.
> >
> > OK, just to make sure I understand... You are compiling exactly the
> > same kernel source tree with exactly the same .config, just with two
> > different versions of gcc, correct?
> yes.
> >
> > If so, it is quite possible that the slow one is the correct one. :-/
> yeah, new version always have problem.
>
> looks like opensuse11.3 has 4.5.0 and fedora14 has 4.5.1
OK, so fedora14 is the fast one (4.5.1) and opensuse11.3 is the slow
one (4.5.0), correct?
Thanx, Paul
next prev parent reply other threads:[~2011-05-21 13:18 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <tip-80d02085d99039b3b7f3a73c8896226b0cb1ba07@git.kernel.org>
2011-05-20 21:04 ` [tip:core/rcu] Revert "rcu: Decrease memory-barrier usage based on semi-formal proof" Yinghai Lu
2011-05-20 22:42 ` Paul E. McKenney
2011-05-20 23:09 ` Yinghai Lu
2011-05-20 23:14 ` Paul E. McKenney
2011-05-20 23:16 ` Yinghai Lu
2011-05-20 23:49 ` Paul E. McKenney
2011-05-21 0:02 ` Yinghai Lu
2011-05-21 13:18 ` Paul E. McKenney [this message]
2011-05-21 14:08 ` Paul E. McKenney
2011-05-23 20:14 ` Yinghai Lu
2011-05-23 21:25 ` Paul E. McKenney
2011-05-23 22:01 ` Yinghai Lu
2011-05-23 22:55 ` Yinghai Lu
2011-05-23 22:58 ` Yinghai Lu
2011-05-24 1:18 ` Paul E. McKenney
2011-05-24 1:26 ` Yinghai Lu
2011-05-24 1:35 ` Paul E. McKenney
2011-05-24 21:23 ` Yinghai Lu
2011-05-25 0:05 ` Paul E. McKenney
2011-05-25 0:13 ` Yinghai Lu
2011-05-25 4:46 ` Paul E. McKenney
2011-05-25 7:24 ` Ingo Molnar
2011-05-25 20:48 ` Paul E. McKenney
2011-05-25 7:18 ` Ingo Molnar
2011-05-25 0:16 ` Paul E. McKenney
2011-05-25 0:10 ` Yinghai Lu
2011-05-25 4:52 ` Paul E. McKenney
2011-05-25 7:27 ` Ingo Molnar
2011-05-25 20:47 ` Paul E. McKenney
2011-05-25 20:52 ` Ingo Molnar
2011-05-25 22:15 ` Yinghai Lu
2011-05-25 22:34 ` Paul E. McKenney
2011-05-25 22:49 ` Yinghai Lu
2011-05-26 1:13 ` Paul E. McKenney
2011-05-26 1:30 ` Paul E. McKenney
2011-05-26 6:13 ` Ingo Molnar
2011-05-26 14:25 ` Paul E. McKenney
2011-05-26 17:43 ` Paul E. McKenney
2011-05-26 20:26 ` Ingo Molnar
2011-05-26 15:08 ` Yinghai Lu
2011-05-26 16:28 ` Paul E. McKenney
2011-05-28 1:04 ` Paul E. McKenney
2011-05-28 4:03 ` Yinghai Lu
2011-05-28 6:38 ` Paul E. McKenney
2011-05-24 1:12 ` Paul E. McKenney
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