]> git.baikalelectronics.ru Git - kernel.git/commit
mm: Account for a THP NUMA hinting update as one PTE update
authorMel Gorman <mgorman@suse.de>
Mon, 7 Oct 2013 10:28:47 +0000 (11:28 +0100)
committerIngo Molnar <mingo@kernel.org>
Tue, 29 Oct 2013 10:38:17 +0000 (11:38 +0100)
commit73f757057369caf0a61cbdcd8eb47ceaf316647e
tree810363fc3b179f7349eada8abfc4732e72bd2ac0
parent74cc418d61ad35ef5bc669b4a922cb18ba73144d
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>
mm/mprotect.c