From: Ben Pfaff <blp@cs.stanford.edu>
Date: Thu, 5 Oct 2006 03:07:31 +0000 (+0000)
Subject: Sleep until recent_cpu actually decays.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a40154ad529f4c3d15068b3b3103197fb896add;p=pintos-anon

Sleep until recent_cpu actually decays.
---

diff --git a/src/tests/threads/mlfqs-recent-1.c b/src/tests/threads/mlfqs-recent-1.c
index 670b00c..4258671 100644
--- a/src/tests/threads/mlfqs-recent-1.c
+++ b/src/tests/threads/mlfqs-recent-1.c
@@ -114,10 +114,14 @@ test_mlfqs_recent_1 (void)
   
   ASSERT (thread_mlfqs);
 
-  msg ("Sleeping 10 seconds to allow recent_cpu to decay, please wait...");
-  start_time = timer_ticks ();
-  timer_sleep (DIV_ROUND_UP (start_time, TIMER_FREQ) - start_time
-               + 10 * TIMER_FREQ);
+  do 
+    {
+      msg ("Sleeping 10 seconds to allow recent_cpu to decay, please wait...");
+      start_time = timer_ticks ();
+      timer_sleep (DIV_ROUND_UP (start_time, TIMER_FREQ) - start_time
+                   + 10 * TIMER_FREQ);
+    }
+  while (thread_get_recent_cpu () > 700);
 
   start_time = timer_ticks ();
   for (;;)