Messages in this thread Patch in this message |  | | | From | KOSAKI Motohiro <> | | Subject | [PATCH 1/5][resend] add per-zone statistics to show_free_areas() | | Date | Thu, 9 Jul 2009 17:06:48 +0900 (JST) |
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Subject: [PATCH] add per-zone statistics to show_free_areas()
show_free_areas() displays only a limited amount of zone counters. This patch includes additional counters in the display to allow easier debugging. This may be especially useful if an OOM is due to running out of DMA memory.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Acked-by: Wu Fengguang <fengguang.wu@intel.com> --- mm/page_alloc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) Index: b/mm/page_alloc.c =================================================================== --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2151,6 +2151,16 @@ void show_free_areas(void) " inactive_file:%lukB" " unevictable:%lukB" " present:%lukB" + " mlocked:%lukB" + " dirty:%lukB" + " writeback:%lukB" + " mapped:%lukB" + " slab_reclaimable:%lukB" + " slab_unreclaimable:%lukB" + " pagetables:%lukB" + " unstable:%lukB" + " bounce:%lukB" + " writeback_tmp:%lukB" " pages_scanned:%lu" " all_unreclaimable? %s" "\n", @@ -2165,6 +2175,16 @@ void show_free_areas(void) K(zone_page_state(zone, NR_INACTIVE_FILE)), K(zone_page_state(zone, NR_UNEVICTABLE)), K(zone->present_pages), + K(zone_page_state(zone, NR_MLOCK)), + K(zone_page_state(zone, NR_FILE_DIRTY)), + K(zone_page_state(zone, NR_WRITEBACK)), + K(zone_page_state(zone, NR_FILE_MAPPED)), + K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)), + K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)), + K(zone_page_state(zone, NR_PAGETABLE)), + K(zone_page_state(zone, NR_UNSTABLE_NFS)), + K(zone_page_state(zone, NR_BOUNCE)), + K(zone_page_state(zone, NR_WRITEBACK_TEMP)), zone->pages_scanned, (zone_is_all_unreclaimable(zone) ? "yes" : "no") );
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