A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

mm: vmstat: add isolate pages

Browse source 
If the system is running a heavy load of processes then concurrent reclaim
can isolate a large number of pages from the LRU. /proc/vmstat and the
output generated for an OOM do not show how many pages were isolated.

This has been observed during process fork bomb testing (mstctl11 in LTP).

This patch shows the information about isolated pages.

Reproduced via:

-----------------------
% ./hackbench 140 process 1000
   => OOM occur

active_anon:146 inactive_anon:0 isolated_anon:49245
 active_file:79 inactive_file:18 isolated_file:113
 unevictable:0 dirty:0 writeback:0 unstable:0 buffer:39
 free:370 slab_reclaimable:309 slab_unreclaimable:5492
 mapped:53 shmem:15 pagetables:28140 bounce:0

Signed-off-by: KOSAKI Motohiro <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Acked-by: Wu Fengguang <[email protected]>
Reviewed-by: Minchan Kim <[email protected]>
Cc: Hugh Dickins <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2009-09-21 17:01:37 -07:00 • committed by Linus Torvalds
commit a731286de6
5 changed files with 35 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
mm/vmstat.c
View file

@ -644,6 +644,8 @@ static const char * const vmstat_text[] = {
"nr_bounce",
"nr_vmscan_write",
"nr_writeback_temp",
"nr_isolated_anon",
"nr_isolated_file",
"nr_shmem",
#ifdef CONFIG_NUMA
"numa_hit",