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https://github.com/torvalds/linux
17 August 2024, 15:42:30 UTC
Revision 0255d491848032f6c601b6410c3b8ebded3a37b1 authored by Mel Gorman on 07 October 2013, 10:28:47 UTC, committed by Ingo Molnar on 29 October 2013, 10:38:17 UTC 
mm: Account for a THP NUMA hinting update as one PTE update
 
A THP PMD update is accounted for as 512 pages updated in vmstat.  This is
large difference when estimating the cost of automatic NUMA balancing and
can be misleading when comparing results that had collapsed versus split
THP. This patch addresses the accounting issue.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-10-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 parent 3f926ab
History
Tip revision: 0255d491848032f6c601b6410c3b8ebded3a37b1 authored by Mel Gorman on 07 October 2013, 10:28:47 UTC
mm: Account for a THP NUMA hinting update as one PTE update
Tip revision: 0255d49
File Mode Size
Kconfig -rw-r--r-- 59.6 KB
Makefile -rw-r--r-- 1.1 KB
calibrate.c -rw-r--r-- 8.3 KB
do_mounts.c -rw-r--r-- 14.2 KB
do_mounts.h -rw-r--r-- 1.4 KB
do_mounts_initrd.c -rw-r--r-- 3.4 KB
do_mounts_md.c -rw-r--r-- 8.2 KB
do_mounts_rd.c -rw-r--r-- 8.4 KB
init_task.c -rw-r--r-- 728 bytes
initramfs.c -rw-r--r-- 13.0 KB
main.c -rw-r--r-- 22.0 KB
noinitramfs.c -rw-r--r-- 1.5 KB
version.c -rw-r--r-- 1.2 KB
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