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-rw-r--r--include/trace/events/sched.h656
1 files changed, 656 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
new file mode 100644
index 000000000..c96a4337a
--- /dev/null
+++ b/include/trace/events/sched.h
@@ -0,0 +1,656 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sched
+
+#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SCHED_H
+
+#include <linux/sched/numa_balancing.h>
+#include <linux/tracepoint.h>
+#include <linux/binfmts.h>
+
+/*
+ * Tracepoint for calling kthread_stop, performed to end a kthread:
+ */
+TRACE_EVENT(sched_kthread_stop,
+
+ TP_PROTO(struct task_struct *t),
+
+ TP_ARGS(t),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
+ __entry->pid = t->pid;
+ ),
+
+ TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
+);
+
+/*
+ * Tracepoint for the return value of the kthread stopping:
+ */
+TRACE_EVENT(sched_kthread_stop_ret,
+
+ TP_PROTO(int ret),
+
+ TP_ARGS(ret),
+
+ TP_STRUCT__entry(
+ __field( int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->ret = ret;
+ ),
+
+ TP_printk("ret=%d", __entry->ret)
+);
+
+/*
+ * Tracepoint for waking up a task:
+ */
+DECLARE_EVENT_CLASS(sched_wakeup_template,
+
+ TP_PROTO(struct task_struct *p),
+
+ TP_ARGS(__perf_task(p)),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, prio )
+ __field( int, success )
+ __field( int, target_cpu )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
+ __entry->pid = p->pid;
+ __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
+ __entry->success = 1; /* rudiment, kill when possible */
+ __entry->target_cpu = task_cpu(p);
+ ),
+
+ TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
+ __entry->comm, __entry->pid, __entry->prio,
+ __entry->target_cpu)
+);
+
+/*
+ * Tracepoint called when waking a task; this tracepoint is guaranteed to be
+ * called from the waking context.
+ */
+DEFINE_EVENT(sched_wakeup_template, sched_waking,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
+ * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
+ * It is not always called from the waking context.
+ */
+DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
+ * Tracepoint for waking up a new task:
+ */
+DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+#ifdef CREATE_TRACE_POINTS
+static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
+{
+ unsigned int state;
+
+#ifdef CONFIG_SCHED_DEBUG
+ BUG_ON(p != current);
+#endif /* CONFIG_SCHED_DEBUG */
+
+ /*
+ * Preemption ignores task state, therefore preempted tasks are always
+ * RUNNING (we will not have dequeued if state != RUNNING).
+ */
+ if (preempt)
+ return TASK_REPORT_MAX;
+
+ /*
+ * task_state_index() uses fls() and returns a value from 0-8 range.
+ * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
+ * it for left shift operation to get the correct task->state
+ * mapping.
+ */
+ state = task_state_index(p);
+
+ return state ? (1 << (state - 1)) : state;
+}
+#endif /* CREATE_TRACE_POINTS */
+
+/*
+ * Tracepoint for task switches, performed by the scheduler:
+ */
+TRACE_EVENT(sched_switch,
+
+ TP_PROTO(bool preempt,
+ struct task_struct *prev,
+ struct task_struct *next),
+
+ TP_ARGS(preempt, prev, next),
+
+ TP_STRUCT__entry(
+ __array( char, prev_comm, TASK_COMM_LEN )
+ __field( pid_t, prev_pid )
+ __field( int, prev_prio )
+ __field( long, prev_state )
+ __array( char, next_comm, TASK_COMM_LEN )
+ __field( pid_t, next_pid )
+ __field( int, next_prio )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
+ __entry->prev_pid = prev->pid;
+ __entry->prev_prio = prev->prio;
+ __entry->prev_state = __trace_sched_switch_state(preempt, prev);
+ memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
+ __entry->next_pid = next->pid;
+ __entry->next_prio = next->prio;
+ /* XXX SCHED_DEADLINE */
+ ),
+
+ TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d",
+ __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
+
+ (__entry->prev_state & (TASK_REPORT_MAX - 1)) ?
+ __print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|",
+ { TASK_INTERRUPTIBLE, "S" },
+ { TASK_UNINTERRUPTIBLE, "D" },
+ { __TASK_STOPPED, "T" },
+ { __TASK_TRACED, "t" },
+ { EXIT_DEAD, "X" },
+ { EXIT_ZOMBIE, "Z" },
+ { TASK_PARKED, "P" },
+ { TASK_DEAD, "I" }) :
+ "R",
+
+ __entry->prev_state & TASK_REPORT_MAX ? "+" : "",
+ __entry->next_comm, __entry->next_pid, __entry->next_prio)
+);
+
+/*
+ * Tracepoint for a task being migrated:
+ */
+TRACE_EVENT(sched_migrate_task,
+
+ TP_PROTO(struct task_struct *p, int dest_cpu),
+
+ TP_ARGS(p, dest_cpu),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, prio )
+ __field( int, orig_cpu )
+ __field( int, dest_cpu )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
+ __entry->pid = p->pid;
+ __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
+ __entry->orig_cpu = task_cpu(p);
+ __entry->dest_cpu = dest_cpu;
+ ),
+
+ TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
+ __entry->comm, __entry->pid, __entry->prio,
+ __entry->orig_cpu, __entry->dest_cpu)
+);
+
+DECLARE_EVENT_CLASS(sched_process_template,
+
+ TP_PROTO(struct task_struct *p),
+
+ TP_ARGS(p),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, prio )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
+ __entry->pid = p->pid;
+ __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
+ ),
+
+ TP_printk("comm=%s pid=%d prio=%d",
+ __entry->comm, __entry->pid, __entry->prio)
+);
+
+/*
+ * Tracepoint for freeing a task:
+ */
+DEFINE_EVENT(sched_process_template, sched_process_free,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
+ * Tracepoint for a task exiting:
+ */
+DEFINE_EVENT(sched_process_template, sched_process_exit,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
+ * Tracepoint for waiting on task to unschedule:
+ */
+DEFINE_EVENT(sched_process_template, sched_wait_task,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
+ * Tracepoint for a waiting task:
+ */
+TRACE_EVENT(sched_process_wait,
+
+ TP_PROTO(struct pid *pid),
+
+ TP_ARGS(pid),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, prio )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
+ __entry->pid = pid_nr(pid);
+ __entry->prio = current->prio; /* XXX SCHED_DEADLINE */
+ ),
+
+ TP_printk("comm=%s pid=%d prio=%d",
+ __entry->comm, __entry->pid, __entry->prio)
+);
+
+/*
+ * Tracepoint for do_fork:
+ */
+TRACE_EVENT(sched_process_fork,
+
+ TP_PROTO(struct task_struct *parent, struct task_struct *child),
+
+ TP_ARGS(parent, child),
+
+ TP_STRUCT__entry(
+ __array( char, parent_comm, TASK_COMM_LEN )
+ __field( pid_t, parent_pid )
+ __array( char, child_comm, TASK_COMM_LEN )
+ __field( pid_t, child_pid )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
+ __entry->parent_pid = parent->pid;
+ memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
+ __entry->child_pid = child->pid;
+ ),
+
+ TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
+ __entry->parent_comm, __entry->parent_pid,
+ __entry->child_comm, __entry->child_pid)
+);
+
+/*
+ * Tracepoint for exec:
+ */
+TRACE_EVENT(sched_process_exec,
+
+ TP_PROTO(struct task_struct *p, pid_t old_pid,
+ struct linux_binprm *bprm),
+
+ TP_ARGS(p, old_pid, bprm),
+
+ TP_STRUCT__entry(
+ __string( filename, bprm->filename )
+ __field( pid_t, pid )
+ __field( pid_t, old_pid )
+ ),
+
+ TP_fast_assign(
+ __assign_str(filename, bprm->filename);
+ __entry->pid = p->pid;
+ __entry->old_pid = old_pid;
+ ),
+
+ TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
+ __entry->pid, __entry->old_pid)
+);
+
+
+#ifdef CONFIG_SCHEDSTATS
+#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT
+#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS
+#else
+#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT_NOP
+#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS_NOP
+#endif
+
+/*
+ * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
+ * adding sched_stat support to SCHED_FIFO/RR would be welcome.
+ */
+DECLARE_EVENT_CLASS_SCHEDSTAT(sched_stat_template,
+
+ TP_PROTO(struct task_struct *tsk, u64 delay),
+
+ TP_ARGS(__perf_task(tsk), __perf_count(delay)),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( u64, delay )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->delay = delay;
+ ),
+
+ TP_printk("comm=%s pid=%d delay=%Lu [ns]",
+ __entry->comm, __entry->pid,
+ (unsigned long long)__entry->delay)
+);
+
+/*
+ * Tracepoint for accounting wait time (time the task is runnable
+ * but not actually running due to scheduler contention).
+ */
+DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_wait,
+ TP_PROTO(struct task_struct *tsk, u64 delay),
+ TP_ARGS(tsk, delay));
+
+/*
+ * Tracepoint for accounting sleep time (time the task is not runnable,
+ * including iowait, see below).
+ */
+DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_sleep,
+ TP_PROTO(struct task_struct *tsk, u64 delay),
+ TP_ARGS(tsk, delay));
+
+/*
+ * Tracepoint for accounting iowait time (time the task is not runnable
+ * due to waiting on IO to complete).
+ */
+DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_iowait,
+ TP_PROTO(struct task_struct *tsk, u64 delay),
+ TP_ARGS(tsk, delay));
+
+/*
+ * Tracepoint for accounting blocked time (time the task is in uninterruptible).
+ */
+DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_blocked,
+ TP_PROTO(struct task_struct *tsk, u64 delay),
+ TP_ARGS(tsk, delay));
+
+/*
+ * Tracepoint for accounting runtime (time the task is executing
+ * on a CPU).
+ */
+DECLARE_EVENT_CLASS(sched_stat_runtime,
+
+ TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
+
+ TP_ARGS(tsk, __perf_count(runtime), vruntime),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( u64, runtime )
+ __field( u64, vruntime )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->runtime = runtime;
+ __entry->vruntime = vruntime;
+ ),
+
+ TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
+ __entry->comm, __entry->pid,
+ (unsigned long long)__entry->runtime,
+ (unsigned long long)__entry->vruntime)
+);
+
+DEFINE_EVENT(sched_stat_runtime, sched_stat_runtime,
+ TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
+ TP_ARGS(tsk, runtime, vruntime));
+
+/*
+ * Tracepoint for showing priority inheritance modifying a tasks
+ * priority.
+ */
+TRACE_EVENT(sched_pi_setprio,
+
+ TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
+
+ TP_ARGS(tsk, pi_task),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, oldprio )
+ __field( int, newprio )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->oldprio = tsk->prio;
+ __entry->newprio = pi_task ?
+ min(tsk->normal_prio, pi_task->prio) :
+ tsk->normal_prio;
+ /* XXX SCHED_DEADLINE bits missing */
+ ),
+
+ TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
+ __entry->comm, __entry->pid,
+ __entry->oldprio, __entry->newprio)
+);
+
+#ifdef CONFIG_DETECT_HUNG_TASK
+TRACE_EVENT(sched_process_hang,
+ TP_PROTO(struct task_struct *tsk),
+ TP_ARGS(tsk),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ ),
+
+ TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
+);
+#endif /* CONFIG_DETECT_HUNG_TASK */
+
+/*
+ * Tracks migration of tasks from one runqueue to another. Can be used to
+ * detect if automatic NUMA balancing is bouncing between nodes.
+ */
+TRACE_EVENT(sched_move_numa,
+
+ TP_PROTO(struct task_struct *tsk, int src_cpu, int dst_cpu),
+
+ TP_ARGS(tsk, src_cpu, dst_cpu),
+
+ TP_STRUCT__entry(
+ __field( pid_t, pid )
+ __field( pid_t, tgid )
+ __field( pid_t, ngid )
+ __field( int, src_cpu )
+ __field( int, src_nid )
+ __field( int, dst_cpu )
+ __field( int, dst_nid )
+ ),
+
+ TP_fast_assign(
+ __entry->pid = task_pid_nr(tsk);
+ __entry->tgid = task_tgid_nr(tsk);
+ __entry->ngid = task_numa_group_id(tsk);
+ __entry->src_cpu = src_cpu;
+ __entry->src_nid = cpu_to_node(src_cpu);
+ __entry->dst_cpu = dst_cpu;
+ __entry->dst_nid = cpu_to_node(dst_cpu);
+ ),
+
+ TP_printk("pid=%d tgid=%d ngid=%d src_cpu=%d src_nid=%d dst_cpu=%d dst_nid=%d",
+ __entry->pid, __entry->tgid, __entry->ngid,
+ __entry->src_cpu, __entry->src_nid,
+ __entry->dst_cpu, __entry->dst_nid)
+);
+
+DECLARE_EVENT_CLASS(sched_numa_pair_template,
+
+ TP_PROTO(struct task_struct *src_tsk, int src_cpu,
+ struct task_struct *dst_tsk, int dst_cpu),
+
+ TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu),
+
+ TP_STRUCT__entry(
+ __field( pid_t, src_pid )
+ __field( pid_t, src_tgid )
+ __field( pid_t, src_ngid )
+ __field( int, src_cpu )
+ __field( int, src_nid )
+ __field( pid_t, dst_pid )
+ __field( pid_t, dst_tgid )
+ __field( pid_t, dst_ngid )
+ __field( int, dst_cpu )
+ __field( int, dst_nid )
+ ),
+
+ TP_fast_assign(
+ __entry->src_pid = task_pid_nr(src_tsk);
+ __entry->src_tgid = task_tgid_nr(src_tsk);
+ __entry->src_ngid = task_numa_group_id(src_tsk);
+ __entry->src_cpu = src_cpu;
+ __entry->src_nid = cpu_to_node(src_cpu);
+ __entry->dst_pid = dst_tsk ? task_pid_nr(dst_tsk) : 0;
+ __entry->dst_tgid = dst_tsk ? task_tgid_nr(dst_tsk) : 0;
+ __entry->dst_ngid = dst_tsk ? task_numa_group_id(dst_tsk) : 0;
+ __entry->dst_cpu = dst_cpu;
+ __entry->dst_nid = dst_cpu >= 0 ? cpu_to_node(dst_cpu) : -1;
+ ),
+
+ TP_printk("src_pid=%d src_tgid=%d src_ngid=%d src_cpu=%d src_nid=%d dst_pid=%d dst_tgid=%d dst_ngid=%d dst_cpu=%d dst_nid=%d",
+ __entry->src_pid, __entry->src_tgid, __entry->src_ngid,
+ __entry->src_cpu, __entry->src_nid,
+ __entry->dst_pid, __entry->dst_tgid, __entry->dst_ngid,
+ __entry->dst_cpu, __entry->dst_nid)
+);
+
+DEFINE_EVENT(sched_numa_pair_template, sched_stick_numa,
+
+ TP_PROTO(struct task_struct *src_tsk, int src_cpu,
+ struct task_struct *dst_tsk, int dst_cpu),
+
+ TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
+);
+
+DEFINE_EVENT(sched_numa_pair_template, sched_swap_numa,
+
+ TP_PROTO(struct task_struct *src_tsk, int src_cpu,
+ struct task_struct *dst_tsk, int dst_cpu),
+
+ TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
+);
+
+
+/*
+ * Tracepoint for waking a polling cpu without an IPI.
+ */
+TRACE_EVENT(sched_wake_idle_without_ipi,
+
+ TP_PROTO(int cpu),
+
+ TP_ARGS(cpu),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cpu;
+ ),
+
+ TP_printk("cpu=%d", __entry->cpu)
+);
+
+/*
+ * Following tracepoints are not exported in tracefs and provide hooking
+ * mechanisms only for testing and debugging purposes.
+ *
+ * Postfixed with _tp to make them easily identifiable in the code.
+ */
+DECLARE_TRACE(pelt_cfs_tp,
+ TP_PROTO(struct cfs_rq *cfs_rq),
+ TP_ARGS(cfs_rq));
+
+DECLARE_TRACE(pelt_rt_tp,
+ TP_PROTO(struct rq *rq),
+ TP_ARGS(rq));
+
+DECLARE_TRACE(pelt_dl_tp,
+ TP_PROTO(struct rq *rq),
+ TP_ARGS(rq));
+
+DECLARE_TRACE(pelt_thermal_tp,
+ TP_PROTO(struct rq *rq),
+ TP_ARGS(rq));
+
+DECLARE_TRACE(pelt_irq_tp,
+ TP_PROTO(struct rq *rq),
+ TP_ARGS(rq));
+
+DECLARE_TRACE(pelt_se_tp,
+ TP_PROTO(struct sched_entity *se),
+ TP_ARGS(se));
+
+DECLARE_TRACE(sched_cpu_capacity_tp,
+ TP_PROTO(struct rq *rq),
+ TP_ARGS(rq));
+
+DECLARE_TRACE(sched_overutilized_tp,
+ TP_PROTO(struct root_domain *rd, bool overutilized),
+ TP_ARGS(rd, overutilized));
+
+DECLARE_TRACE(sched_util_est_cfs_tp,
+ TP_PROTO(struct cfs_rq *cfs_rq),
+ TP_ARGS(cfs_rq));
+
+DECLARE_TRACE(sched_util_est_se_tp,
+ TP_PROTO(struct sched_entity *se),
+ TP_ARGS(se));
+
+DECLARE_TRACE(sched_update_nr_running_tp,
+ TP_PROTO(struct rq *rq, int change),
+ TP_ARGS(rq, change));
+
+#endif /* _TRACE_SCHED_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>