linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Joel Schopp <jschopp@austin.ibm.com>
Cc: Michael Neuling <mikey@neuling.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	ego@in.ibm.com, linux-kernel@vger.kernel.org,
	Ingo Molnar <mingo@elte.hu>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 2/2] powerpc: implement arch_scale_smt_power for Power7
Date: Sun, 24 Jan 2010 14:00:28 +1100	[thread overview]
Message-ID: <1264302028.3601.36.camel@pasglop> (raw)
In-Reply-To: <4B577F1A.9060907@austin.ibm.com>

On Wed, 2010-01-20 at 16:09 -0600, Joel Schopp wrote:
> I can turn that into a conditional branch (case statement) with a shift 
> for the common 1,2,4 cases which should cover all procs available today 
> falling back to a divide for any theoretical future processors that do 
> other numbers of threads. 

Look at the cputhreads.h implementation ... Today we only support
power-of-two numbers of threads.

Cheers,
Ben.

  reply	other threads:[~2010-01-24  3:03 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-20 20:00 [PATCH 0/2] sched: arch_scale_smt_powers Joel Schopp
2010-01-20 20:02 ` [PATCH 1/2] sched: Fix the place where group powers are updated Joel Schopp
2010-01-26 23:28   ` [PATCHv2 1/2] sched: enable ARCH_POWER Joel Schopp
2010-01-28 23:20     ` [PATCHv3 " Joel Schopp
2010-02-05 20:57       ` [PATCHv4 " Joel Schopp
2010-01-20 20:04 ` [PATCH 2/2] powerpc: implement arch_scale_smt_power for Power7 Joel Schopp
2010-01-20 20:48   ` Peter Zijlstra
2010-01-20 21:58     ` Michael Neuling
2010-01-20 22:44     ` Joel Schopp
2010-01-21  8:27       ` Peter Zijlstra
2010-01-20 21:04   ` Michael Neuling
2010-01-20 22:09     ` Joel Schopp
2010-01-24  3:00       ` Benjamin Herrenschmidt [this message]
2010-01-25 17:50         ` Joel Schopp
2010-01-26  4:23           ` Benjamin Herrenschmidt
2010-01-20 21:33   ` Benjamin Herrenschmidt
2010-01-20 22:36     ` Joel Schopp
2010-01-26 23:28   ` [PATCHv2 " Joel Schopp
2010-01-27  0:52     ` Benjamin Herrenschmidt
2010-01-28 22:39       ` Joel Schopp
2010-01-29  1:23         ` Benjamin Herrenschmidt
2010-01-28 23:20     ` [PATCHv3 " Joel Schopp
2010-01-28 23:24       ` Joel Schopp
2010-01-29  1:23         ` Benjamin Herrenschmidt
2010-01-29 10:13           ` Peter Zijlstra
2010-01-29 18:34             ` Joel Schopp
2010-01-29 18:41           ` Joel Schopp
2010-02-05 20:57         ` [PATCHv4 " Joel Schopp
2010-02-14 10:12           ` Peter Zijlstra
2010-02-17 22:20             ` Michael Neuling
2010-02-18 13:17               ` Peter Zijlstra
2010-02-18 13:19                 ` Peter Zijlstra
2010-02-18 16:28                 ` Joel Schopp
2010-02-18 17:08                   ` Peter Zijlstra
2010-02-19  6:05                 ` Michael Neuling
2010-02-19 10:01                   ` Peter Zijlstra
2010-02-19 11:01                     ` Michael Neuling
2010-02-23  6:08                       ` Michael Neuling
2010-02-23 16:24                         ` Peter Zijlstra
2010-02-23 16:30                           ` Peter Zijlstra
2010-02-24  6:07                           ` Michael Neuling
2010-02-24 11:13                             ` Michael Neuling
2010-02-24 11:58                               ` Michael Neuling
2010-02-27 10:21                               ` Michael Neuling
2010-03-02 14:44                                 ` Peter Zijlstra
2010-03-04 22:28                                   ` Michael Neuling
2010-01-29 12:25       ` [PATCHv3 " Gabriel Paubert
2010-01-29 16:26         ` Joel Schopp
2010-01-26 23:27 ` [PATCHv2 0/2] sched: arch_scale_smt_powers v2 Joel Schopp
2010-01-28 23:20   ` [PATCHv3 0/2] sched: arch_scale_smt_powers Joel Schopp
2010-02-05 20:57     ` [PATCHv4 " Joel Schopp

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=1264302028.3601.36.camel@pasglop \
    --to=benh@kernel.crashing.org \
    --cc=a.p.zijlstra@chello.nl \
    --cc=ego@in.ibm.com \
    --cc=jschopp@austin.ibm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mikey@neuling.org \
    --cc=mingo@elte.hu \
    /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).