From 50315a1d20e99a3751e44ed79dcae33439e82331 Mon Sep 17 00:00:00 2001
From: Stefan Lankes <lankes@lfbs.rwth-aachen.de>
Date: Thu, 22 Sep 2011 10:58:03 +0200
Subject: [PATCH] dump every minute the average cpu load

---
 arch/x86/kernel/timer.c  | 6 +++++-
 include/metalsvm/tasks.h | 8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/timer.c b/arch/x86/kernel/timer.c
index 70f62b1c..a2d4ed9f 100644
--- a/arch/x86/kernel/timer.c
+++ b/arch/x86/kernel/timer.c
@@ -79,12 +79,16 @@ static void timer_handler(struct state *s)
 		/*if (timer_ticks % TIMER_FREQ == 0) {
 			vga_puts("One second has passed\n");
 		}*/
+
+		/* Dump load every minute */
+		if (timer_ticks % (TIMER_FREQ*60) == 0)
+			dump_load();
 	}
 
 	update_load();
 
 #if MAX_CORES > 1
-	if ((atomic_int32_read(&cpu_online) > 1) && (timer_ticks % (TIMER_FREQ/5) == 0))
+	if (atomic_int32_read(&cpu_online) > 1)
 		load_balancing();
 #endif
 }
diff --git a/include/metalsvm/tasks.h b/include/metalsvm/tasks.h
index 3f4589cb..55056cbd 100644
--- a/include/metalsvm/tasks.h
+++ b/include/metalsvm/tasks.h
@@ -92,6 +92,11 @@ tid_t wait(int32_t* result);
  */
 void update_load(void);
 
+/** @brief Print the current cpu load
+ *
+ */
+void dump_load(void);
+
 #if MAX_CORES > 1
 /** @brief Load balancer
  *
@@ -103,7 +108,8 @@ void load_balancing(void);
 
 /** @brief Task switcher
  *
- * Timer-interrupted use of this function for task switching */
+ * Timer-interrupted use of this function for task switching
+ */
 void scheduler(void);
 
 /** @brief Wake up a blocked task