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-rw-r--r--Documentation/accounting/delay-accounting.txt11
-rw-r--r--Documentation/accounting/getdelays.c8
2 files changed, 14 insertions, 5 deletions
diff --git a/Documentation/accounting/delay-accounting.txt b/Documentation/accounting/delay-accounting.txt
index 1443cd71d263..8a12f0730c94 100644
--- a/Documentation/accounting/delay-accounting.txt
+++ b/Documentation/accounting/delay-accounting.txt
@@ -11,6 +11,7 @@ the delays experienced by a task while
11a) waiting for a CPU (while being runnable) 11a) waiting for a CPU (while being runnable)
12b) completion of synchronous block I/O initiated by the task 12b) completion of synchronous block I/O initiated by the task
13c) swapping in pages 13c) swapping in pages
14d) memory reclaim
14 15
15and makes these statistics available to userspace through 16and makes these statistics available to userspace through
16the taskstats interface. 17the taskstats interface.
@@ -41,7 +42,7 @@ this structure. See
41 include/linux/taskstats.h 42 include/linux/taskstats.h
42for a description of the fields pertaining to delay accounting. 43for a description of the fields pertaining to delay accounting.
43It will generally be in the form of counters returning the cumulative 44It will generally be in the form of counters returning the cumulative
44delay seen for cpu, sync block I/O, swapin etc. 45delay seen for cpu, sync block I/O, swapin, memory reclaim etc.
45 46
46Taking the difference of two successive readings of a given 47Taking the difference of two successive readings of a given
47counter (say cpu_delay_total) for a task will give the delay 48counter (say cpu_delay_total) for a task will give the delay
@@ -94,7 +95,9 @@ CPU count real total virtual total delay total
94 7876 92005750 100000000 24001500 95 7876 92005750 100000000 24001500
95IO count delay total 96IO count delay total
96 0 0 97 0 0
97MEM count delay total 98SWAP count delay total
99 0 0
100RECLAIM count delay total
98 0 0 101 0 0
99 102
100Get delays seen in executing a given simple command 103Get delays seen in executing a given simple command
@@ -108,5 +111,7 @@ CPU count real total virtual total delay total
108 6 4000250 4000000 0 111 6 4000250 4000000 0
109IO count delay total 112IO count delay total
110 0 0 113 0 0
111MEM count delay total 114SWAP count delay total
115 0 0
116RECLAIM count delay total
112 0 0 117 0 0
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
index 40121b5cca14..3f7755f3963f 100644
--- a/Documentation/accounting/getdelays.c
+++ b/Documentation/accounting/getdelays.c
@@ -196,14 +196,18 @@ void print_delayacct(struct taskstats *t)
196 " %15llu%15llu%15llu%15llu\n" 196 " %15llu%15llu%15llu%15llu\n"
197 "IO %15s%15s\n" 197 "IO %15s%15s\n"
198 " %15llu%15llu\n" 198 " %15llu%15llu\n"
199 "MEM %15s%15s\n" 199 "SWAP %15s%15s\n"
200 " %15llu%15llu\n"
201 "RECLAIM %12s%15s\n"
200 " %15llu%15llu\n", 202 " %15llu%15llu\n",
201 "count", "real total", "virtual total", "delay total", 203 "count", "real total", "virtual total", "delay total",
202 t->cpu_count, t->cpu_run_real_total, t->cpu_run_virtual_total, 204 t->cpu_count, t->cpu_run_real_total, t->cpu_run_virtual_total,
203 t->cpu_delay_total, 205 t->cpu_delay_total,
204 "count", "delay total", 206 "count", "delay total",
205 t->blkio_count, t->blkio_delay_total, 207 t->blkio_count, t->blkio_delay_total,
206 "count", "delay total", t->swapin_count, t->swapin_delay_total); 208 "count", "delay total", t->swapin_count, t->swapin_delay_total,
209 "count", "delay total",
210 t->freepages_count, t->freepages_delay_total);
207} 211}
208 212
209void task_context_switch_counts(struct taskstats *t) 213void task_context_switch_counts(struct taskstats *t)