diff options
| author |   Steven Rostedt <srostedt@redhat.com> | 2009-08-06 14:59:32 -0400 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2009-08-26 00:32:03 -0400 |
| commit | f0693c8bd5c50380b299e19d19e7640024640b42 (patch) | |
| tree | a14b3e0cc80de7315c0be3f7880a5001a48f2c02 /include/trace | |
| parent | tracing: Eliminate code duplication in kernel/tracepoint.c (diff) | |
| download | linux-dev-f0693c8bd5c50380b299e19d19e7640024640b42.tar.xz linux-dev-f0693c8bd5c50380b299e19d19e7640024640b42.zip | |
tracing/sched: show CPU task wakes up on in trace event
While debugging the scheduler push / pull algorithm, I found
it very annoying that the sched wake up events did not show
the CPU that the task was waking on. In order to analyze the
scheduler, I needed that information.
This patch adds recording of the CPU that a task is waking up
on.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/sched.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 8949bb7eb082..a581ef211ff5 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -94,6 +94,7 @@ TRACE_EVENT(sched_wakeup, __field( pid_t, pid ) __field( int, prio ) __field( int, success ) + __field( int, cpu ) ), TP_fast_assign( @@ -101,11 +102,12 @@ TRACE_EVENT(sched_wakeup, __entry->pid = p->pid; __entry->prio = p->prio; __entry->success = success; + __entry->cpu = task_cpu(p); ), - TP_printk("task %s:%d [%d] success=%d", + TP_printk("task %s:%d [%d] success=%d [%03d]", __entry->comm, __entry->pid, __entry->prio, - __entry->success) + __entry->success, __entry->cpu) ); /* @@ -125,6 +127,7 @@ TRACE_EVENT(sched_wakeup_new, __field( pid_t, pid ) __field( int, prio ) __field( int, success ) + __field( int, cpu ) ), TP_fast_assign( @@ -132,11 +135,12 @@ TRACE_EVENT(sched_wakeup_new, __entry->pid = p->pid; __entry->prio = p->prio; __entry->success = success; + __entry->cpu = task_cpu(p); ), - TP_printk("task %s:%d [%d] success=%d", + TP_printk("task %s:%d [%d] success=%d [%03d]", __entry->comm, __entry->pid, __entry->prio, - __entry->success) + __entry->success, __entry->cpu) ); /* |