From 60f39aea78c0986731ae3fbe06e720d22ec388d3 Mon Sep 17 00:00:00 2001
From: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Date: Mon, 13 Jan 2014 13:08:26 +0100
Subject: [PATCH] sched: add tracepoint for resuming from wait
Useful for calculating time during which thread
was scheduled out because of wait().
Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
---
core/sched.cc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/core/sched.cc b/core/sched.cc
index 0848e4587..83fc2f70d 100644
--- a/core/sched.cc
+++ b/core/sched.cc
@@ -33,6 +33,7 @@ namespace sched {
TRACEPOINT(trace_sched_switch, "to %p vold=%g vnew=%g", thread*, float, float);
TRACEPOINT(trace_sched_wait, "");
+TRACEPOINT(trace_sched_wait_ret, "");
TRACEPOINT(trace_sched_wake, "wake %p", thread*);
TRACEPOINT(trace_sched_migrate, "thread=%p cpu=%d", thread*, unsigned);
TRACEPOINT(trace_sched_queue, "thread=%p", thread*);
@@ -745,6 +746,7 @@ void thread::wait()
{
trace_sched_wait();
schedule();
+ trace_sched_wait_ret();
}
void thread::sleep_until(s64 abstime)
--
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