leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wakeup-tracer: show scheduling data in output

Browse Source 
Impact: better data for wakeup tracer

This patch adds the wakeup and schedule calls that are used by
the scheduler tracer to make the wakeup tracer more readable.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2009-01-21 17:17:04 -05:00 committed by Ingo Molnar
parent 3244351c31
commit f8ec1062f5
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/trace/trace_sched_wakeup.c
View File

@ -153,6 +153,7 @@ probe_wakeup_sched_switch(struct rq *rq, struct task_struct *prev,
goto out_unlock;
trace_function(wakeup_trace, data, CALLER_ADDR1, CALLER_ADDR2, flags, pc);
tracing_sched_switch_trace(wakeup_trace, data, prev, next, flags, pc);
/*
* usecs conversion is slow so we try to delay the conversion
@ -214,6 +215,7 @@ static void wakeup_reset(struct trace_array *tr)
static void
probe_wakeup(struct rq *rq, struct task_struct *p, int success)
{
struct trace_array_cpu *data;
int cpu = smp_processor_id();
unsigned long flags;
long disabled;
@ -253,9 +255,12 @@ probe_wakeup(struct rq *rq, struct task_struct *p, int success)
local_save_flags(flags);
wakeup_trace->data[wakeup_cpu]->preempt_timestamp = ftrace_now(cpu);
trace_function(wakeup_trace, wakeup_trace->data[wakeup_cpu],
CALLER_ADDR1, CALLER_ADDR2, flags, pc);
data = wakeup_trace->data[wakeup_cpu];
data->preempt_timestamp = ftrace_now(cpu);
tracing_sched_wakeup_trace(wakeup_trace, data, p, current,
flags, pc);
trace_function(wakeup_trace, data, CALLER_ADDR1, CALLER_ADDR2,
flags, pc);
out_locked:
__raw_spin_unlock(&wakeup_lock);