Eliminated printing from switch extension.

c/src/tests/libtests/cpuuse/cpuuse.scn

@@ -1,24 +1,34 @@
-*** TEST 4 ***
+*** CPU USAGE LIBRARY TEST ***
-TA1 - 09:15:00   12/31/1988
 TA1 - rtems_task_suspend - on Task 2
 TA1 - rtems_task_suspend - on Task 3
 TA1 - killing time
 TA1 - rtems_task_resume - on Task 2
 TA1 - rtems_task_resume - on Task 3
-TA2 - 09:15:03   12/31/1988
-TA3 - 09:15:04   12/31/1988
-TA1 - 09:15:05   12/31/1988
-TA2 - 09:15:06   12/31/1988
-TA3 - 09:15:07   12/31/1988
-TA1 - 09:15:08   12/31/1988
 TA1 - rtems_task_mode - change mode to NO RTEMS_PREEMPT
-TA1 - 09:15:09   12/31/1988
 TA1 - 09:15:10   12/31/1988
 TA1 - 09:15:11   12/31/1988
 TA1 - 09:15:12   12/31/1988
 TA1 - 09:15:13   12/31/1988
 TA1 - 09:15:14   12/31/1988
+TA1 - 09:15:15   12/31/1988
 TA1 - rtems_task_mode - change mode to RTEMS_PREEMPT
-TA2 - 09:15:15   12/31/1988
+TA1 - 09:15:00   12/31/1988
-TA3 - 09:15:16   12/31/1988
+TA2 - 09:15:04   12/31/1988
-*** END OF TEST 4 ***
+TA3 - 09:15:05   12/31/1988
+TA1 - 09:15:06   12/31/1988
+TA2 - 09:15:07   12/31/1988
+TA3 - 09:15:08   12/31/1988
+TA1 - 09:15:09   12/31/1988
+TA2 - 09:15:16   12/31/1988
+CPU Usage by thread
+   ID        NAME        TICKS    PERCENT
+0x04010001   IDLE           0     0.000
+0x08010002   TA1         1203     0.748
+0x08010003   TA2          204     0.127
+0x08010004   TA3          202     0.126
+
+Ticks since last reset = 1601
+
+Total Units = 1609
+*** END OF CPU USAGE LIBRARY TEST ***
+NOTE: Actual time per task will vary but there should be no IDLE time.

c/src/tests/libtests/cpuuse/system.h

@@ -44,6 +44,7 @@ void Task_switch(
 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
 
 #define CONFIGURE_MAXIMUM_USER_EXTENSIONS     1
+#define CONFIGURE_MAXIMUM_TASKS               4
 #define CONFIGURE_TICKS_PER_TIMESLICE       100
 
 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
@@ -63,4 +64,18 @@ TEST_EXTERN rtems_name Extension_name[ 4 ];  /* array of task names */
 /* array of task run counts */
 TEST_EXTERN volatile rtems_unsigned32 Run_count[ 4 ];  
 
+/*
+ * Keep track of task switches
+ */
+
+struct taskSwitchLog {
+  int               taskIndex;
+  rtems_time_of_day when;
+};
+
+extern struct taskSwitchLog taskSwitchLog[];
+extern int taskSwitchLogIndex;
+volatile extern int testsFinished;
+
+ 
 /* end of include file */

c/src/tests/libtests/cpuuse/task2.c

@@ -20,9 +20,28 @@
 
 #include "system.h"
 
+#include <rtems/cpuuse.h>
+
+static void
+showTaskSwitches (void)
+{
+  int i;
+  int switches = taskSwitchLogIndex;
+
+  for (i = 0 ; i < switches ; i++) {
+      put_name( Task_name[taskSwitchLog[i].taskIndex], FALSE );
+      print_time( "- ", &taskSwitchLog[i].when, "\n" );
+  }
+}
+
 rtems_task Task_2(
   rtems_task_argument argument
 )
 {
-  while( FOREVER );
+  while ( !testsFinished );
+
+  showTaskSwitches ();
+  CPU_usage_Dump();
+  puts( "*** END OF CPU USAGE LIBRARY TEST ***" );
+  exit( 0 );
 }

c/src/tests/libtests/cpuuse/tswitch.c

@@ -22,7 +22,9 @@
 
 #include "system.h"
 
-#include <rtems/cpuuse.h>
+struct taskSwitchLog taskSwitchLog[1000];
+int taskSwitchLogIndex;
+volatile int testsFinished;;
 
 rtems_extension Task_switch( 
   rtems_tcb *unused,
@@ -45,14 +47,15 @@ rtems_extension Task_switch(
       fatal_directive_status_with_level( status, RTEMS_SUCCESSFUL,
                                          "rtems_clock_get", 1 );
 
-      put_name( Task_name[ index ], FALSE );
+      if (taskSwitchLogIndex <
-      print_time( "- ", &time, "\n" );
+          (sizeof taskSwitchLog / sizeof taskSwitchLog[0])) {
-
+        taskSwitchLog[taskSwitchLogIndex].taskIndex = index;
-      if ( time.second >= 16 ) {
+        taskSwitchLog[taskSwitchLogIndex].when = time;
-        CPU_usage_Dump();
+        taskSwitchLogIndex++;
-        puts( "*** END OF CPU USAGE LIBRARY TEST ***" );
-        exit( 0 );
       }
+      if ( time.second >= 16 )
+        testsFinished = 1;
+
       break;
 
     case 0: