1 files changed, 118 insertions, 0 deletions
diff --git a/testsuites/rhealstone/rhtaskswitch/taskswitch.c b/testsuites/rhealstone/rhtaskswitch/taskswitch.c
new file mode 100644
index 0000000000..cb9030901a
--- /dev/null
+++ b/testsuites/rhealstone/rhtaskswitch/taskswitch.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2014 Daniel Ramirez. (javamonn@gmail.com)
+ *
+ * This file's license is 2-clause BSD as in this distribution's LICENSE file.
+ */
+
+#include <rtems/timerdrv.h>
+#include <timesys.h>
+
+#define BENCHMARKS 50000
+
+rtems_task Task01( rtems_task_argument ignored );
+rtems_task Task02( rtems_task_argument ignored );
+rtems_task Init( rtems_task_argument ignored );
+
+rtems_id           Task_id[2];
+rtems_name         Task_name[2];
+uint32_t           loop_overhead;
+uint32_t           dir_overhead;
+unsigned long      count1, count2;
+rtems_status_code  status;
+
+rtems_task Task02( rtems_task_argument ignored )
+{
+  uint32_t telapsed;
+
+  /* All overhead accounted for now, we can begin benchmark */
+  benchmark_timer_initialize();
+
+  for ( count1 = 0; count1 < BENCHMARKS - 1; count1++ ) {
+    rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
+  }
+
+  telapsed = benchmark_timer_read();
+  put_time(
+     "Rhealstone: Task switch",
+     telapsed,
+     ( BENCHMARKS * 2 ) - 1,   /* ( BENCHMARKS * 2 ) - 1 total benchmarks */
+     loop_overhead,            /* Overhead of loop */
+     dir_overhead              /* Overhead of rtems_task_wake_after directive */
+  );
+
+  rtems_test_exit( 0 );
+}
+
+rtems_task Task01( rtems_task_argument ignored )
+{
+  status = rtems_task_start( Task_id[1], Task02, 0 );
+  directive_failed( status, "rtems_task_start of TA02" );
+
+  /* Yield processor so second task can startup and run */
+  rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
+
+  for ( count2 = 0; count2 < BENCHMARKS; count2++ ) {
+    rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
+  }
+
+  /* Should never reach here */
+  rtems_test_assert( false );
+
+}
+
+rtems_task Init( rtems_task_argument ignored )
+{
+  Print_Warning();
+
+  Task_name[0] = rtems_build_name( 'T','A','0','1' );
+  status = rtems_task_create(
+    Task_name[0],
+    30,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_MODES,
+    RTEMS_DEFAULT_ATTRIBUTES,
+    &Task_id[0]
+  );
+  directive_failed( status, "rtems_task_create of TA01" );
+
+  Task_name[1] = rtems_build_name( 'T','A','0','2' );
+  status = rtems_task_create(
+    Task_name[1],
+    30,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_MODES,
+    RTEMS_DEFAULT_ATTRIBUTES,
+    &Task_id[1]
+  );
+  directive_failed( status, "rtems_task_create of TA02" );
+
+  /* find overhead of routine (no task switches) */
+  benchmark_timer_initialize();
+  for ( count1 = 0; count1 < BENCHMARKS - 1; count1++ ) {
+    /* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ) */
+  }
+  for ( count2 = 0; count2 < BENCHMARKS; count2++ ) {
+    /* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ) */
+  }
+  loop_overhead = benchmark_timer_read();
+
+  /* find overhead of rtems_task_wake_after call (no task switches) */
+  benchmark_timer_initialize();
+  rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
+  dir_overhead = benchmark_timer_read();
+
+  status = rtems_task_start( Task_id[0], Task01, 0);
+  directive_failed( status, "rtems_task_start of TA01" );
+
+  status = rtems_task_delete( RTEMS_SELF);
+  directive_failed( status, "rtems_task_delete of INIT" );
+}
+
+/* configuration information */
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
+#define CONFIGURE_TICKS_PER_TIMESLICE        0
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+#define CONFIGURE_MAXIMUM_TASKS 3
+#define CONFIGURE_INIT
+#include <rtems/confdefs.h>