diff options
Diffstat (limited to 'Documentation/accounting/taskstats-struct.txt')
-rw-r--r-- | Documentation/accounting/taskstats-struct.txt | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/Documentation/accounting/taskstats-struct.txt b/Documentation/accounting/taskstats-struct.txt index 8aa7529f8258..e7512c061c15 100644 --- a/Documentation/accounting/taskstats-struct.txt +++ b/Documentation/accounting/taskstats-struct.txt | |||
@@ -6,7 +6,7 @@ This document contains an explanation of the struct taskstats fields. | |||
6 | There are three different groups of fields in the struct taskstats: | 6 | There are three different groups of fields in the struct taskstats: |
7 | 7 | ||
8 | 1) Common and basic accounting fields | 8 | 1) Common and basic accounting fields |
9 | If CONFIG_TASKSTATS is set, the taskstats inteface is enabled and | 9 | If CONFIG_TASKSTATS is set, the taskstats interface is enabled and |
10 | the common fields and basic accounting fields are collected for | 10 | the common fields and basic accounting fields are collected for |
11 | delivery at do_exit() of a task. | 11 | delivery at do_exit() of a task. |
12 | 2) Delay accounting fields | 12 | 2) Delay accounting fields |
@@ -24,6 +24,10 @@ There are three different groups of fields in the struct taskstats: | |||
24 | 24 | ||
25 | 4) Per-task and per-thread context switch count statistics | 25 | 4) Per-task and per-thread context switch count statistics |
26 | 26 | ||
27 | 5) Time accounting for SMT machines | ||
28 | |||
29 | 6) Extended delay accounting fields for memory reclaim | ||
30 | |||
27 | Future extension should add fields to the end of the taskstats struct, and | 31 | Future extension should add fields to the end of the taskstats struct, and |
28 | should not change the relative position of each field within the struct. | 32 | should not change the relative position of each field within the struct. |
29 | 33 | ||
@@ -164,4 +168,13 @@ struct taskstats { | |||
164 | __u64 nvcsw; /* Context voluntary switch counter */ | 168 | __u64 nvcsw; /* Context voluntary switch counter */ |
165 | __u64 nivcsw; /* Context involuntary switch counter */ | 169 | __u64 nivcsw; /* Context involuntary switch counter */ |
166 | 170 | ||
171 | 5) Time accounting for SMT machines | ||
172 | __u64 ac_utimescaled; /* utime scaled on frequency etc */ | ||
173 | __u64 ac_stimescaled; /* stime scaled on frequency etc */ | ||
174 | __u64 cpu_scaled_run_real_total; /* scaled cpu_run_real_total */ | ||
175 | |||
176 | 6) Extended delay accounting fields for memory reclaim | ||
177 | /* Delay waiting for memory reclaim */ | ||
178 | __u64 freepages_count; | ||
179 | __u64 freepages_delay_total; | ||
167 | } | 180 | } |