All of lore.kernel.org
 help / color / mirror / Atom feed
From: Vincent Guittot <vincent.guittot@linaro.org>
To: peterz@infradead.org, mingo@kernel.org,
	linux-kernel@vger.kernel.org, preeti@linux.vnet.ibm.com,
	Morten.Rasmussen@arm.com, kamalesh@linux.vnet.ibm.com
Cc: riel@redhat.com, efault@gmx.de, nicolas.pitre@linaro.org,
	dietmar.eggemann@arm.com, linaro-kernel@lists.linaro.org,
	Vincent Guittot <vincent.guittot@linaro.org>
Subject: [PATCH v10 03/11] sched: remove frequency scaling from cpu_capacity
Date: Fri, 27 Feb 2015 16:54:06 +0100	[thread overview]
Message-ID: <1425052454-25797-4-git-send-email-vincent.guittot@linaro.org> (raw)
In-Reply-To: <1425052454-25797-1-git-send-email-vincent.guittot@linaro.org>

Now that arch_scale_cpu_capacity has been introduced to scale the original
capacity, the arch_scale_freq_capacity is no longer used (it was
previously used by ARM arch). Remove arch_scale_freq_capacity from the
computation of cpu_capacity. The frequency invariance will be handled in the
load tracking and not in the CPU capacity. arch_scale_freq_capacity will be
revisited for scaling load with the current frequency of the CPUs in a later
patch.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Acked-by: Morten Rasmussen <morten.rasmussen@arm.com>
---
 kernel/sched/fair.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d94a865..e54231f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6042,13 +6042,6 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
 
 	sdg->sgc->capacity_orig = capacity;
 
-	if (sched_feat(ARCH_CAPACITY))
-		capacity *= arch_scale_freq_capacity(sd, cpu);
-	else
-		capacity *= default_scale_capacity(sd, cpu);
-
-	capacity >>= SCHED_CAPACITY_SHIFT;
-
 	capacity *= scale_rt_capacity(cpu);
 	capacity >>= SCHED_CAPACITY_SHIFT;
 
-- 
1.9.1


  parent reply	other threads:[~2015-02-27 16:03 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-27 15:54 [PATCH v10 00/11] sched: consolidation of CPU capacity and usage Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 01/11] sched: add utilization_avg_contrib Vincent Guittot
2015-03-27 11:40   ` [tip:sched/core] sched: Add sched_avg::utilization_avg_contrib tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 02/11] sched: Track group sched_entity usage contributions Vincent Guittot
2015-03-27 11:40   ` [tip:sched/core] " tip-bot for Morten Rasmussen
2015-02-27 15:54 ` Vincent Guittot [this message]
2015-03-27 11:40   ` [tip:sched/core] sched: Remove frequency scaling from cpu_capacity tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 04/11] sched: Make sched entity usage tracking scale-invariant Vincent Guittot
2015-03-03 12:51   ` Dietmar Eggemann
2015-03-04  7:54     ` Vincent Guittot
2015-03-04  7:46   ` Vincent Guittot
2015-03-27 11:40     ` [tip:sched/core] " tip-bot for Morten Rasmussen
2015-03-23 13:19   ` [PATCH v10 04/11] " Peter Zijlstra
2015-03-24 10:00     ` Vincent Guittot
2015-03-25 17:33       ` Peter Zijlstra
2015-03-25 18:08         ` Vincent Guittot
2015-03-26 17:38           ` Morten Rasmussen
2015-03-26 17:40             ` Morten Rasmussen
2015-03-26 17:46             ` [PATCH 1/2] sched: Change arch_scale_*() functions to scale input factor Morten Rasmussen
2015-03-26 17:46               ` [PATCH 2/2] sched: Make sched entity usage tracking scale-invariant Morten Rasmussen
2015-03-26 17:47             ` [PATCH v10 04/11] " Peter Zijlstra
2015-03-26 17:51               ` Morten Rasmussen
2015-03-27  8:17             ` Vincent Guittot
2015-03-27  9:05               ` Vincent Guittot
2015-04-02 16:53         ` Morten Rasmussen
2015-04-02 17:32           ` Peter Zijlstra
2015-04-07 13:31             ` Morten Rasmussen
2015-03-27 11:43     ` [tip:sched/core] sched: Optimize freq invariant accounting tip-bot for Peter Zijlstra
2015-02-27 15:54 ` [PATCH v10 05/11] sched: make scale_rt invariant with frequency Vincent Guittot
2015-03-27 11:41   ` [tip:sched/core] sched: Make " tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 06/11] sched: add per rq cpu_capacity_orig Vincent Guittot
2015-03-27 11:41   ` [tip:sched/core] sched: Add struct rq::cpu_capacity_orig tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 07/11] sched: get CPU's usage statistic Vincent Guittot
2015-03-03 12:47   ` Dietmar Eggemann
2015-03-04  7:53     ` Vincent Guittot
2015-03-04  7:48   ` Vincent Guittot
2015-03-27 11:41     ` [tip:sched/core] sched: Calculate CPU' s usage statistic and put it into struct sg_lb_stats::group_usage tip-bot for Vincent Guittot
2015-03-27 15:12   ` [PATCH v10 07/11] sched: get CPU's usage statistic Xunlei Pang
2015-03-27 15:37     ` Vincent Guittot
2015-04-01  3:22       ` Xunlei Pang
2015-02-27 15:54 ` [PATCH v10 08/11] sched: replace capacity_factor by usage Vincent Guittot
2015-03-27 11:42   ` [tip:sched/core] sched: Replace " tip-bot for Vincent Guittot
2015-03-27 14:52   ` [PATCH v10 08/11] sched: replace " Xunlei Pang
2015-03-27 15:59     ` Vincent Guittot
2015-04-01  3:37       ` Xunlei Pang
2015-04-01  9:06         ` Vincent Guittot
2015-04-01 14:54           ` Xunlei Pang
2015-04-01 15:57             ` Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 09/11] sched; remove unused capacity_orig from Vincent Guittot
2015-03-03 10:18   ` Morten Rasmussen
2015-03-03 10:33     ` Vincent Guittot
2015-03-03 10:35   ` [PATCH v10 09/11] sched; remove unused capacity_orig Vincent Guittot
2015-03-27 11:42     ` [tip:sched/core] sched: Remove unused struct sched_group_capacity ::capacity_orig tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 10/11] sched: add SD_PREFER_SIBLING for SMT level Vincent Guittot
2015-03-02 11:52   ` Srikar Dronamraju
2015-03-03  8:38     ` Vincent Guittot
2015-03-23  9:11       ` Peter Zijlstra
2015-03-23  9:59         ` Preeti U Murthy
2015-03-26 10:55   ` Peter Zijlstra
2015-03-26 12:03     ` Preeti U Murthy
2015-03-27 11:42   ` [tip:sched/core] sched: Add " tip-bot for Vincent Guittot
2015-02-27 15:54 ` [PATCH v10 11/11] sched: move cfs task on a CPU with higher capacity Vincent Guittot
2015-03-26 14:19   ` Dietmar Eggemann
2015-03-26 15:43     ` Vincent Guittot
2015-03-27 11:42   ` [tip:sched/core] sched: Move CFS tasks to CPUs " tip-bot for Vincent Guittot
2015-03-11 10:10 ` [PATCH v10 00/11] sched: consolidation of CPU capacity and usage Vincent Guittot
2015-04-02  1:47 ` Wanpeng Li
2015-04-02  7:30   ` Vincent Guittot

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=1425052454-25797-4-git-send-email-vincent.guittot@linaro.org \
    --to=vincent.guittot@linaro.org \
    --cc=Morten.Rasmussen@arm.com \
    --cc=dietmar.eggemann@arm.com \
    --cc=efault@gmx.de \
    --cc=kamalesh@linux.vnet.ibm.com \
    --cc=linaro-kernel@lists.linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=nicolas.pitre@linaro.org \
    --cc=peterz@infradead.org \
    --cc=preeti@linux.vnet.ibm.com \
    --cc=riel@redhat.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.