Verified roundrobin test

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@87 42af7a65-404d-4744-a932-0658087f49c3

3 files changed, 25 insertions, 6 deletions

diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog
index d2b64ea0d..925b4c798 100644
--- a/nuttx/ChangeLog
+++ b/nuttx/ChangeLog
@@ -39,12 +39,13 @@
 	* Added 'ls' command to nsh
 	* Added C5471 watchdog driver
 	* Added support for the Neuros OSD / DM320
-	* Fixed another bug where free() is called from IDEL task.
+	* Fixed another bug where free() is called from IDLE task.
 	  Can't do this; the caller must be able to wait for access
 	  to memory.
 	* Separated C5471 serial driver; a shareable part is
 	  in drivers/. ; the C5471 specific part is in arch/C5471.
 	  serial.h defines the interface.
-	* Fixed mq_receive() -- bad memcpy()
+	* Fixed mq_receive() and mq_send() -- bad memcpy()
+	* Added a test for roundrobin scheduler.
 
 
diff --git a/nuttx/examples/ostest/main.c b/nuttx/examples/ostest/main.c
index 7afba05c9..8b7096972 100644
--- a/nuttx/examples/ostest/main.c
+++ b/nuttx/examples/ostest/main.c
@@ -164,13 +164,11 @@ static int user_main(int argc, char *argv[])
   sighand_test();
 #endif
 
-#if 0 /* Does not work yet */
 #if !defined(CONFIG_DISABLE_PTHREAD) && CONFIG_RR_INTERVAL > 0
   /* Verify round robin scheduling */
 
   rr_test();
 #endif
-#endif
 
   printf("user_main: Exitting\n");
   return 0;
diff --git a/nuttx/examples/ostest/roundrobin.c b/nuttx/examples/ostest/roundrobin.c
index d8217e451..c8b8f0d29 100644
--- a/nuttx/examples/ostest/roundrobin.c
+++ b/nuttx/examples/ostest/roundrobin.c
@@ -47,7 +47,11 @@
  * Definitions
  ********************************************************************************/
 
-#define CONFIG_NINTEGERS 32768
+/* This number may need to be tuned for different processor speeds */
+
+/* #define CONFIG_NINTEGERS 32768 Takes forever on 60Mhz ARM7 */
+
+#define CONFIG_NINTEGERS 2048
 
 /********************************************************************************
  * Private Data
@@ -121,10 +125,16 @@ static void *sieve1(void *parameter)
   int i;
 
   printf("sieve1 started\n");
+  fflush(stdout);
+
   for (i = 0; i < 1000; i++)
     {
       dosieve(prime1);
     }
+
+  printf("sieve1 finished\n");
+  fflush(stdout);
+
   pthread_exit(NULL);
 }
 
@@ -137,10 +147,16 @@ static void *sieve2(void *parameter)
   int i;
 
   printf("sieve2 started\n");
+  fflush(stdout);
+
   for (i = 0; i < 1000; i++)
     {
       dosieve(prime2);
     }
+
+  printf("sieve2 finished\n");
+  fflush(stdout);
+
   pthread_exit(NULL);
 }
 
@@ -203,7 +219,11 @@ void rr_test(void)
       printf("rr_test: Error in thread 2 creation, status=%d\n",  status);
     }
 
-  printf("rr_test: Waiting for sieves to complete\n");
+  printf("rr_test: Waiting for sieves to complete -- this should take awhile\n");
+  printf("rr_test: If RR scheduling is working, they should complete at\n");
+  printf("rr_test: then same time\n");
+  fflush(stdout);
+
   pthread_join(sieve2_thread, &result);
   pthread_join(sieve1_thread, &result);
   printf("rr_test: Done\n");