Thread (102 messages) 102 messages, 13 authors, 2012-11-12
STALE4982d REVIEWED: 1 (0M)

[PATCH 27/31] sched, numa, mm: Add credits for NUMA placement

From: Peter Zijlstra <hidden>
Date: 2012-10-25 13:13:08
Also in: lkml

From: Rik van Riel <redacted>

The NUMA placement code has been rewritten several times, but
the basic ideas took a lot of work to develop. The people who
put in the work deserve credit for it. Thanks Andrea & Peter :)

[ The Documentation/scheduler/numa-problem.txt file should
  probably be rewritten once we figure out the final details of
  what the NUMA code needs to do, and why. ]

Signed-off-by: Rik van Riel <redacted>
Acked-by: Peter Zijlstra <redacted>
Cc: aarcange@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
----
This is against tip.git numa/core
---
 CREDITS             |    1 +
 kernel/sched/fair.c |    3 +++
 mm/memory.c         |    2 ++
 3 files changed, 6 insertions(+)

Index: tip/CREDITS
===================================================================
--- tip.orig/CREDITS
+++ tip/CREDITS
@@ -125,6 +125,7 @@ D: Author of pscan that helps to fix lp/
 D: Author of lil (Linux Interrupt Latency benchmark)
 D: Fixed the shm swap deallocation at swapoff time (try_to_unuse message)
 D: VM hacker
+D: NUMA task placement
 D: Various other kernel hacks
 S: Imola 40026
 S: Italy
Index: tip/kernel/sched/fair.c
===================================================================
--- tip.orig/kernel/sched/fair.c
+++ tip/kernel/sched/fair.c
@@ -18,6 +18,9 @@
  *
  *  Adaptive scheduling granularity, math enhancements by Peter Zijlstra
  *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
+ *
+ *  NUMA placement, statistics and algorithm by Andrea Arcangeli,
+ *  CFS balancing changes by Peter Zijlstra. Copyright (C) 2012 Red Hat, Inc.
  */
 
 #include <linux/latencytop.h>
Index: tip/mm/memory.c
===================================================================
--- tip.orig/mm/memory.c
+++ tip/mm/memory.c
@@ -36,6 +36,8 @@
  *		(Gerhard.Wichert@pdb.siemens.de)
  *
  * Aug/Sep 2004 Changed to four level page tables (Andi Kleen)
+ *
+ * 2012 - NUMA placement page faults (Andrea Arcangeli, Peter Zijlstra)
  */
 
 #include <linux/kernel_stat.h>


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