diff options
Diffstat (limited to 'Documentation/accounting/delay-accounting.txt')
-rw-r--r-- | Documentation/accounting/delay-accounting.txt | 11 |
1 files changed, 8 insertions, 3 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 | |||
11 | a) waiting for a CPU (while being runnable) | 11 | a) waiting for a CPU (while being runnable) |
12 | b) completion of synchronous block I/O initiated by the task | 12 | b) completion of synchronous block I/O initiated by the task |
13 | c) swapping in pages | 13 | c) swapping in pages |
14 | d) memory reclaim | ||
14 | 15 | ||
15 | and makes these statistics available to userspace through | 16 | and makes these statistics available to userspace through |
16 | the taskstats interface. | 17 | the taskstats interface. |
@@ -41,7 +42,7 @@ this structure. See | |||
41 | include/linux/taskstats.h | 42 | include/linux/taskstats.h |
42 | for a description of the fields pertaining to delay accounting. | 43 | for a description of the fields pertaining to delay accounting. |
43 | It will generally be in the form of counters returning the cumulative | 44 | It will generally be in the form of counters returning the cumulative |
44 | delay seen for cpu, sync block I/O, swapin etc. | 45 | delay seen for cpu, sync block I/O, swapin, memory reclaim etc. |
45 | 46 | ||
46 | Taking the difference of two successive readings of a given | 47 | Taking the difference of two successive readings of a given |
47 | counter (say cpu_delay_total) for a task will give the delay | 48 | counter (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 |
95 | IO count delay total | 96 | IO count delay total |
96 | 0 0 | 97 | 0 0 |
97 | MEM count delay total | 98 | SWAP count delay total |
99 | 0 0 | ||
100 | RECLAIM count delay total | ||
98 | 0 0 | 101 | 0 0 |
99 | 102 | ||
100 | Get delays seen in executing a given simple command | 103 | Get 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 |
109 | IO count delay total | 112 | IO count delay total |
110 | 0 0 | 113 | 0 0 |
111 | MEM count delay total | 114 | SWAP count delay total |
115 | 0 0 | ||
116 | RECLAIM count delay total | ||
112 | 0 0 | 117 | 0 0 |