From: Richard Henderson <rth@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jason Baron <jbaron@redhat.com>, Paul Turner <pjt@google.com>,
linux-kernel@vger.kernel.org,
Bharata B Rao <bharata@linux.vnet.ibm.com>,
Dhaval Giani <dhaval.giani@gmail.com>,
Balbir Singh <bsingharora@gmail.com>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>,
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>,
Ingo Molnar <mingo@elte.hu>, Pavel Emelyanov <xemul@openvz.org>
Subject: Re: [RFT][patch 17/18] sched: use jump labels to reduce overhead when bandwidth control is inactive
Date: Fri, 05 Aug 2011 08:11:15 -0700 [thread overview]
Message-ID: <4E3C0813.5050303@redhat.com> (raw)
In-Reply-To: <1312533036.10852.34.camel@twins>
On 08/05/2011 01:30 AM, Peter Zijlstra wrote:
> OK, so _WHY_ does that make a difference and will a next version of
> gnu-binutils not mess that up?
The Why is micro-architectual, and I can't answer that.
But ld will never re-order the files as given on the command-line.
There are too many functions and tables that are constructed
piece-wise from input sections; re-ordering them would change
the semantics of the program.
r~
next prev parent reply other threads:[~2011-08-05 15:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-22 0:32 Jason Baron
2011-07-22 0:57 ` Paul Turner
2011-07-22 1:17 ` [RFT][patch 17/18] sched: use jump labels to reduce overhead when bandwidth control is inactive Jason Baron
2011-07-22 1:38 ` Paul Turner
2011-07-27 21:58 ` Jason Baron
2011-08-05 3:53 ` Paul Turner
2011-08-05 7:21 ` Peter Zijlstra
2011-08-05 3:55 ` Paul Turner
2011-08-05 18:28 ` Jason Baron
2011-08-05 8:30 ` Peter Zijlstra
2011-08-05 15:11 ` Richard Henderson [this message]
2011-08-05 15:14 ` Peter Zijlstra
2011-08-05 15:24 ` Jason Baron
-- strict thread matches above, loose matches on Subject: below --
2011-07-21 16:43 [patch 00/18] CFS Bandwidth Control v7.2 Paul Turner
2011-07-21 16:43 ` [RFT][patch 17/18] sched: use jump labels to reduce overhead when bandwidth control is inactive Paul Turner
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