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tracing: Convert some sched trace events to DEFINE_EVENT and _PRINT
Converting some of the scheduler trace events to use the TRACE_EVENT_TEMPLATE, DEFINE_EVENT and DEFINE_EVENT_PRINT helped to save some space: $ size kernel/sched.o-* text data bss dec hex filename 79299 6776 2520 88595 15a13 kernel/sched.o-notrace 101941 11896 2584 116421 1c6c5 kernel/sched.o-templ 104779 11896 2584 119259 1d1db kernel/sched.o-trace sched.o-notrace is without any tracepoints compiled sched.o-templ is with this patch sched.o-trace is the tracepoints before this patch The trace events converted to DEFINE_EVENT: sched_wakeup, sched_wakeup_new, sched_process_free, sched_process_exit, and sched_stat_wait. The trace events converted to DEFINE_EVENT_PRINT: sched_stat_sleep and sched_stat_iowait. Note, since the TRACE_EVENT_TEMPLATE always uses a print, the sched_stat_wait print format is defined in the template and this template is used by sched_stat_sleep and sched_stat_iowait. But the later two override the print format. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
Steven Rostedt
parent
e5bc972168
commit
75ec29ab84
1 changed files with 52 additions and 118 deletions
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@ -83,7 +83,7 @@ TRACE_EVENT(sched_wait_task,
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* (NOTE: the 'rq' argument is not used by generic trace events,
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* but used by the latency tracer plugin. )
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*/
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TRACE_EVENT(sched_wakeup,
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TRACE_EVENT_TEMPLATE(sched_wakeup_template,
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TP_PROTO(struct rq *rq, struct task_struct *p, int success),
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@ -110,38 +110,19 @@ TRACE_EVENT(sched_wakeup,
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__entry->success, __entry->target_cpu)
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);
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DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
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TP_PROTO(struct rq *rq, struct task_struct *p, int success),
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TP_ARGS(rq, p, success));
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/*
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* Tracepoint for waking up a new task:
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*
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* (NOTE: the 'rq' argument is not used by generic trace events,
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* but used by the latency tracer plugin. )
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*/
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TRACE_EVENT(sched_wakeup_new,
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TP_PROTO(struct rq *rq, struct task_struct *p, int success),
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TP_ARGS(rq, p, success),
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TP_STRUCT__entry(
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__array( char, comm, TASK_COMM_LEN )
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__field( pid_t, pid )
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__field( int, prio )
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__field( int, success )
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__field( int, target_cpu )
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),
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TP_fast_assign(
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memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
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__entry->pid = p->pid;
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__entry->prio = p->prio;
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__entry->success = success;
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__entry->target_cpu = task_cpu(p);
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),
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TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
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__entry->comm, __entry->pid, __entry->prio,
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__entry->success, __entry->target_cpu)
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);
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DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
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TP_PROTO(struct rq *rq, struct task_struct *p, int success),
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TP_ARGS(rq, p, success));
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/*
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* Tracepoint for task switches, performed by the scheduler:
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@ -216,10 +197,7 @@ TRACE_EVENT(sched_migrate_task,
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__entry->orig_cpu, __entry->dest_cpu)
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);
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/*
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* Tracepoint for freeing a task:
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*/
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TRACE_EVENT(sched_process_free,
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TRACE_EVENT_TEMPLATE(sched_process_template,
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TP_PROTO(struct task_struct *p),
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@ -241,30 +219,20 @@ TRACE_EVENT(sched_process_free,
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__entry->comm, __entry->pid, __entry->prio)
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);
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/*
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* Tracepoint for freeing a task:
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*/
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DEFINE_EVENT(sched_process_template, sched_process_free,
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TP_PROTO(struct task_struct *p),
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TP_ARGS(p));
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/*
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* Tracepoint for a task exiting:
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*/
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TRACE_EVENT(sched_process_exit,
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TP_PROTO(struct task_struct *p),
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TP_ARGS(p),
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TP_STRUCT__entry(
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__array( char, comm, TASK_COMM_LEN )
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__field( pid_t, pid )
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__field( int, prio )
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),
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TP_fast_assign(
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memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
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__entry->pid = p->pid;
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__entry->prio = p->prio;
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),
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TP_printk("comm=%s pid=%d prio=%d",
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__entry->comm, __entry->pid, __entry->prio)
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);
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DEFINE_EVENT(sched_process_template, sched_process_exit,
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TP_PROTO(struct task_struct *p),
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TP_ARGS(p));
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/*
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* Tracepoint for a waiting task:
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@ -348,12 +316,7 @@ TRACE_EVENT(sched_signal_send,
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* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
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* adding sched_stat support to SCHED_FIFO/RR would be welcome.
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*/
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/*
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* Tracepoint for accounting wait time (time the task is runnable
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* but not actually running due to scheduler contention).
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*/
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TRACE_EVENT(sched_stat_wait,
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TRACE_EVENT_TEMPLATE(sched_stat_template,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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@ -379,6 +342,37 @@ TRACE_EVENT(sched_stat_wait,
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(unsigned long long)__entry->delay)
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);
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/*
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* Tracepoint for accounting wait time (time the task is runnable
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* but not actually running due to scheduler contention).
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*/
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DEFINE_EVENT(sched_stat_template, sched_stat_wait,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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TP_ARGS(tsk, delay));
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/*
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* Tracepoint for accounting sleep time (time the task is not runnable,
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* including iowait, see below).
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*/
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DEFINE_EVENT_PRINT(sched_stat_template, sched_stat_sleep,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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TP_ARGS(tsk, delay),
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TP_printk("task: %s:%d sleep: %Lu [ns]",
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__entry->comm, __entry->pid,
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(unsigned long long)__entry->delay));
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/*
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* Tracepoint for accounting iowait time (time the task is not runnable
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* due to waiting on IO to complete).
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*/
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DEFINE_EVENT_PRINT(sched_stat_template, sched_stat_iowait,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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TP_ARGS(tsk, delay),
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TP_printk("task: %s:%d iowait: %Lu [ns]",
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__entry->comm, __entry->pid,
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(unsigned long long)__entry->delay));
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/*
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* Tracepoint for accounting runtime (time the task is executing
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* on a CPU).
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@ -412,66 +406,6 @@ TRACE_EVENT(sched_stat_runtime,
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(unsigned long long)__entry->vruntime)
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);
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/*
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* Tracepoint for accounting sleep time (time the task is not runnable,
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* including iowait, see below).
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*/
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TRACE_EVENT(sched_stat_sleep,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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TP_ARGS(tsk, delay),
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TP_STRUCT__entry(
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__array( char, comm, TASK_COMM_LEN )
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__field( pid_t, pid )
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__field( u64, delay )
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),
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TP_fast_assign(
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memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
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__entry->pid = tsk->pid;
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__entry->delay = delay;
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)
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TP_perf_assign(
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__perf_count(delay);
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),
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TP_printk("comm=%s pid=%d delay=%Lu [ns]",
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__entry->comm, __entry->pid,
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(unsigned long long)__entry->delay)
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);
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/*
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* Tracepoint for accounting iowait time (time the task is not runnable
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* due to waiting on IO to complete).
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*/
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TRACE_EVENT(sched_stat_iowait,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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TP_ARGS(tsk, delay),
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TP_STRUCT__entry(
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__array( char, comm, TASK_COMM_LEN )
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__field( pid_t, pid )
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__field( u64, delay )
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),
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TP_fast_assign(
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memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
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__entry->pid = tsk->pid;
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__entry->delay = delay;
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)
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TP_perf_assign(
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__perf_count(delay);
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),
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TP_printk("comm=%s pid=%d delay=%Lu [ns]",
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__entry->comm, __entry->pid,
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(unsigned long long)__entry->delay)
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);
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#endif /* _TRACE_SCHED_H */
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/* This part must be outside protection */
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