diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-26 15:38:48 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 15:38:48 +0200 |
| commit | bda307ed7bdc160fcf1475a49f6c2e796fcb1294 (patch) | |
| tree | aa24926a83001373cb4ac2d8be9fd1b6994e7c60 /Documentation/accounting/delay-accounting.txt | |
| parent | 0791e13fbb1ea4e1808d055922c3f116b924bdc9 (diff) | |
| parent | 024e8ac04453b3525448c31ef39848cf675ba6db (diff) | |
| download | op-kernel-dev-bda307ed7bdc160fcf1475a49f6c2e796fcb1294.zip op-kernel-dev-bda307ed7bdc160fcf1475a49f6c2e796fcb1294.tar.gz | |
Merge branch 'linus' into x86/cleanups
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 1443cd7..8a12f07 100644 --- a/Documentation/accounting/delay-accounting.txt +++ b/Documentation/accounting/delay-accounting.txt @@ -11,6 +11,7 @@ the delays experienced by a task while a) waiting for a CPU (while being runnable) b) completion of synchronous block I/O initiated by the task c) swapping in pages +d) memory reclaim and makes these statistics available to userspace through the taskstats interface. @@ -41,7 +42,7 @@ this structure. See include/linux/taskstats.h for a description of the fields pertaining to delay accounting. It will generally be in the form of counters returning the cumulative -delay seen for cpu, sync block I/O, swapin etc. +delay seen for cpu, sync block I/O, swapin, memory reclaim etc. Taking the difference of two successive readings of a given counter (say cpu_delay_total) for a task will give the delay @@ -94,7 +95,9 @@ CPU count real total virtual total delay total 7876 92005750 100000000 24001500 IO count delay total 0 0 -MEM count delay total +SWAP count delay total + 0 0 +RECLAIM count delay total 0 0 Get delays seen in executing a given simple command @@ -108,5 +111,7 @@ CPU count real total virtual total delay total 6 4000250 4000000 0 IO count delay total 0 0 -MEM count delay total +SWAP count delay total + 0 0 +RECLAIM count delay total 0 0 |
