Author: avg
Date: Sat Mar 11 15:57:36 2017
New Revision: 315075
URL: https://svnweb.freebsd.org/changeset/base/315075
Log:
trace thread running state when a thread is run for the first time
This applies to both KTR_SCHED and DTrace sched:::on-cpu tracing.
MFC after: 10 days
Modified:
head/sys/kern/sched_4bsd.c
head/sys/kern/sched_ule.c
Modified: head/sys/kern/sched_4bsd.c
==============================================================================
--- head/sys/kern/sched_4bsd.c Sat Mar 11 15:47:27 2017 (r315074)
+++ head/sys/kern/sched_4bsd.c Sat Mar 11 15:57:36 2017 (r315075)
@@ -1666,6 +1666,10 @@ sched_fork_exit(struct thread *td)
lock_profile_obtain_lock_success(&sched_lock.lock_object,
0, 0, __FILE__, __LINE__);
THREAD_LOCK_ASSERT(td, MA_OWNED | MA_NOTRECURSED);
+
+ KTR_STATE1(KTR_SCHED, "thread", sched_tdname(td), "running",
+ "prio:%d", td->td_priority);
+ SDT_PROBE0(sched, , , on__cpu);
}
char *
Modified: head/sys/kern/sched_ule.c
==============================================================================
--- head/sys/kern/sched_ule.c Sat Mar 11 15:47:27 2017 (r315074)
+++ head/sys/kern/sched_ule.c Sat Mar 11 15:57:36 2017 (r315075)
@@ -2756,6 +2756,10 @@ sched_fork_exit(struct thread *td)
TDQ_LOCK_ASSERT(tdq, MA_OWNED | MA_NOTRECURSED);
lock_profile_obtain_lock_success(
&TDQ_LOCKPTR(tdq)->lock_object, 0, 0, __FILE__, __LINE__);
+
+ KTR_STATE1(KTR_SCHED, "thread", sched_tdname(td), "running",
+ "prio:%d", td->td_priority);
+ SDT_PROBE0(sched, , , on__cpu);
}
/*
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