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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 <[email protected]>
Cc: Hiroshi Shimamoto <[email protected]>
Cc: Balbir Singh <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Keika Kobayashi 2008-07-25 01:48:53 -07:00 • committed by Linus Torvalds
commit 016ae219b9
3 changed files with 15 additions and 1 deletions
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7
Documentation/accounting/taskstats-struct.txt
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@ -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;
}