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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-11 14:03:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-11 15:45:54 +0100 |
| commit | bae43c9945ebeef15e7952e317efb02393d3bfc7 (patch) | |
| tree | 78d12a494fa9c3f73e76e8d7895ceb94d48d517d /kernel/sys.c | |
| parent | 01b2838c4298c5e0d30b4993c195ac34dd9df61e (diff) | |
| download | op-kernel-dev-bae43c9945ebeef15e7952e317efb02393d3bfc7.zip op-kernel-dev-bae43c9945ebeef15e7952e317efb02393d3bfc7.tar.gz | |
perf counters: implement PERF_COUNT_TASK_CLOCK
Impact: add new perf-counter type
The 'task clock' counter counts the amount of time a task is executing,
in nanoseconds. It stops ticking when a task is scheduled out either due
to it blocking, sleeping or it being preempted.
This counter type is a Linux kernel based abstraction, it is available
even if the hardware does not support native hardware performance counters.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions
