Messages in this thread | | | From | Mel Gorman <> | Subject | [PATCH 0/2] Reduce the amount of time spent in watermark-related functions V4 | Date | Thu, 28 Oct 2010 16:13:34 +0100 |
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Changelog since V3 o Added Reviewed-bys o Added comment on why pressure_threshold is what it is o Make sure pressure threshold does not get over 125 o Call get_online_cpus and put_online_cpus as appropriate
The following two patches are in response to a bug report by Shaohua Li where the amount of time spent in zone_nr_free_pages() is unacceptable for large machines. All the background is in the first patches leader. The second patch replaces two setter functions with one function that takes a callback function as a parameter.
include/linux/mmzone.h | 10 ++------ include/linux/vmstat.h | 7 ++++++ mm/mmzone.c | 21 ------------------ mm/page_alloc.c | 35 ++++++++++++++++++++++++------- mm/vmscan.c | 25 +++++++++++++-------- mm/vmstat.c | 54 +++++++++++++++++++++++++++++++++++++++++++++-- 6 files changed, 103 insertions(+), 49 deletions(-)
Mel Gorman (2): mm: page allocator: Adjust the per-cpu counter threshold when memory is low mm: vmstat: Use a single setter function and callback for adjusting percpu thresholds
include/linux/mmzone.h | 10 ++------ include/linux/vmstat.h | 7 ++++++ mm/mmzone.c | 21 ------------------- mm/page_alloc.c | 35 ++++++++++++++++++++++++------- mm/vmscan.c | 25 +++++++++++++--------- mm/vmstat.c | 52 +++++++++++++++++++++++++++++++++++++++++++++-- 6 files changed, 101 insertions(+), 49 deletions(-)
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