linux-kernel - [PATCH v2 0/6] numabalancing patches

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Date:   Fri, 21 Sep 2018 23:18:55 +0530
From:   Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Rik van Riel <riel@...riel.com>,
        Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jirka Hladky <jhladky@...hat.com>
Subject: [PATCH v2 0/6] numabalancing patches

This patchset provides left out patches from the previous series.
http://lore.kernel.org/lkml/1529514181-9842-1-git-send-email-srikar@linux.vnet.ibm.com

Changes from previous posting:
Rebased the patchset to 4.19-rc4.
Handled comments from Ingo Molnar,Peter Peter Zijlstra and Mel Gorman.
Reorder to keep the most discussed patches at the end.

Some of the Ack/Reviewed-by carried from
http://lore.kernel.org/lkml/1528106428-19992-1-git-send-email-srikar@linux.vnet.ibm.com

Please refer to previous postings
http://lore.kernel.org/lkml/1533276841-16341-1-git-send-email-srikar@linux.vnet.ibm.com
http://lore.kernel.org/lkml/1529514181-9842-1-git-send-email-srikar@linux.vnet.ibm.com
http://lore.kernel.org/lkml/1528106428-19992-1-git-send-email-srikar@linux.vnet.ibm.com

Specjbb2005 results (8 warehouses)
Higher bops are better

2 Socket - 2  Node Haswell - X86
JVMS  Prev    Current  %Change
4     200194  205910   2.85523
1     311331  318491   2.2998

2 Socket - 4 Node Power8 - PowerNV
JVMS  Prev    Current  %Change
1     197654  226796   14.7439

4 Socket - 4  Node Power7 - PowerVM
JVMS  Prev     Current  %Change
8     52227.1  60370    15.5913
1     102529   108100   5.43358

Mel Gorman (1):
  sched/numa: Limit the conditions where scan period is reset

Srikar Dronamraju (5):
  sched/numa: Stop multiple tasks from moving to the CPU at the same
    time
  sched/numa: Pass destination CPU as a parameter to migrate_task_rq
  sched/numa: Reset scan rate whenever task moves across nodes
  mm/migrate: Use trylock while resetting rate limit
  sched/numa: Avoid task migration for small NUMA improvement

 kernel/sched/core.c     |  2 +-
 kernel/sched/deadline.c |  2 +-
 kernel/sched/fair.c     | 92 ++++++++++++++++++++++++++++++++++++++++++-------
 kernel/sched/sched.h    |  3 +-
 mm/migrate.c            | 16 ++++++---
 5 files changed, 96 insertions(+), 19 deletions(-)

-- 
2.7.4