sched: add tracepoints related to NUMA task migration

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / trace / events / sched.h

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 04c3084..67e1bbf 100644 (file)
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -443,6 +443,93 @@ TRACE_EVENT(sched_process_hang,
 );
 #endif /* CONFIG_DETECT_HUNG_TASK */
 
+DECLARE_EVENT_CLASS(sched_move_task_template,
+
+       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)
+);
+
+/*
+ * Tracks migration of tasks from one runqueue to another. Can be used to
+ * detect if automatic NUMA balancing is bouncing between nodes
+ */
+DEFINE_EVENT(sched_move_task_template, sched_move_numa,
+       TP_PROTO(struct task_struct *tsk, int src_cpu, int dst_cpu),
+
+       TP_ARGS(tsk, src_cpu, dst_cpu)
+);
+
+DEFINE_EVENT(sched_move_task_template, sched_stick_numa,
+       TP_PROTO(struct task_struct *tsk, int src_cpu, int dst_cpu),
+
+       TP_ARGS(tsk, src_cpu, dst_cpu)
+);
+
+TRACE_EVENT(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),
+
+       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        = task_pid_nr(dst_tsk);
+               __entry->dst_tgid       = task_tgid_nr(dst_tsk);
+               __entry->dst_ngid       = task_numa_group_id(dst_tsk);
+               __entry->dst_cpu        = dst_cpu;
+               __entry->dst_nid        = cpu_to_node(dst_cpu);
+       ),
+
+       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)
+);
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */