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| author |   Ken Chen <kenchen@google.com> | 2008-12-16 23:41:22 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-12-18 13:54:01 +0100 |
| commit | 9c2c48020ec0dd6ecd27e5a1298f73b40d85a595 (patch) | |
| tree | 1a44f56e18012120aff0969094eebd572deb2ea3 /kernel/trace/trace_branch.c | |
| parent | sched, cpuacct: export percpu cpuacct cgroup stats (diff) | |
| download | wireguard-linux-9c2c48020ec0dd6ecd27e5a1298f73b40d85a595.tar.xz wireguard-linux-9c2c48020ec0dd6ecd27e5a1298f73b40d85a595.zip | |
schedstat: consolidate per-task cpu runtime stats
Impact: simplify code
When we turn on CONFIG_SCHEDSTATS, per-task cpu runtime is accumulated
twice. Once in task->se.sum_exec_runtime and once in sched_info.cpu_time.
These two stats are exactly the same.
Given that task->se.sum_exec_runtime is always accumulated by the core
scheduler, sched_info can reuse that data instead of duplicate the accounting.
Signed-off-by: Ken Chen <kenchen@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_branch.c')
0 files changed, 0 insertions, 0 deletions