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per-task-delay-accounting: update taskstats for memory reclaim delay

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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>
This commit is contained in:
Keika Kobayashi 2008-07-25 01:48:53 -07:00 • committed by Linus Torvalds
parent 873b477177
commit 016ae219b9
3 changed files with 15 additions and 1 deletions
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6
include/linux/taskstats.h
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@ -31,7 +31,7 @@
*/
#define TASKSTATS_VERSION 6
#define TASKSTATS_VERSION 7
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
@ -157,6 +157,10 @@ 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 */
/* Delay waiting for memory reclaim */
__u64 freepages_count;
__u64 freepages_delay_total;
};