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authorKeika Kobayashi <kobayashi.kk@ncos.nec.co.jp>2008-07-25 01:48:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:47 -0700
commit016ae219b920c4e606088761d3d6070cdf8ba706 (patch)
tree6bf9035016e8d9131a54cf6343e056a5dcdc74aa /Documentation/accounting/taskstats-struct.txt
parent873b47717732c2f33a4b14de02571a4295a02f0c (diff)
downloadlinux-016ae219b920c4e606088761d3d6070cdf8ba706.tar.gz
per-task-delay-accounting: update taskstats for memory reclaim delay
Add members for memory reclaim delay to taskstats, and accumulate them in __delayacct_add_tsk() . Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/accounting/taskstats-struct.txt')
-rw-r--r--Documentation/accounting/taskstats-struct.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/accounting/taskstats-struct.txt b/Documentation/accounting/taskstats-struct.txt
index cd784f46bf8..b988d110db5 100644
--- a/Documentation/accounting/taskstats-struct.txt
+++ b/Documentation/accounting/taskstats-struct.txt
@@ -26,6 +26,8 @@ There are three different groups of fields in the struct taskstats:
5) Time accounting for SMT machines
+6) Extended delay accounting fields for memory reclaim
+
Future extension should add fields to the end of the taskstats struct, and
should not change the relative position of each field within the struct.
@@ -170,4 +172,9 @@ struct taskstats {
__u64 ac_utimescaled; /* utime scaled on frequency etc */
__u64 ac_stimescaled; /* stime scaled on frequency etc */
__u64 cpu_scaled_run_real_total; /* scaled cpu_run_real_total */
+
+6) Extended delay accounting fields for memory reclaim
+ /* Delay waiting for memory reclaim */
+ __u64 freepages_count;
+ __u64 freepages_delay_total;
}