From e776216d02920673266e31d553078f4edec4a264 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Tue, 13 Nov 2007 16:38:23 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@89
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 test/test.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 49 insertions(+), 2 deletions(-)

(limited to 'test')

diff --git a/test/test.c b/test/test.c
index fbaedd280..8fe61794c 100644
--- a/test/test.c
+++ b/test/test.c
@@ -46,10 +46,29 @@ static void wait(void) {
   chThdWait(t5);
 }
 
-static void println(char *msgp) {
+static void printn(unsigned int n) {
+  char buf[16], *p;
+
+  if (!n)
+    chFDDPut(comp, '0');
+  else {
+    p = buf;
+    while (n)
+          *p++ = (n % 10) + '0', n /= 10;
+    while (p > buf)
+      chFDDPut(comp, *--p);
+  }
+}
+
+static void print(char *msgp) {
 
   while (*msgp)
     chFDDPut(comp, *msgp++);
+}
+
+static void println(char *msgp) {
+
+  print(msgp);
   chFDDPut(comp, '\r');
   chFDDPut(comp, '\n');
 }
@@ -94,12 +113,19 @@ t_msg Thread5(void *p) {
   return 0;
 }
 
+t_msg Thread6(void *p) {
+
+  while (!chThdShouldTerminate())
+    chMsgRelease(chMsgWait() + 1);
+  return 0;
+}
+
 /**
  * Tester thread, this thread must be created with priority \p NORMALPRIO.
  */
 t_msg TestThread(void *p) {
   t_msg msg;
-  int i;
+  unsigned int i;
 
   comp = p;
   println("*****************************");
@@ -202,6 +228,27 @@ t_msg TestThread(void *p) {
   chThdWait(t1);
   println("");
 
+  /*
+   * Kernel benchmarks.
+   */
+  println("*** Kernel Benchmark, context switch stress test:");
+  t_time time = chSysGetTime() + 1;
+  while (chSysGetTime() < time)
+    ;
+  time += 1000;
+  i = 0;
+  t1 = chThdCreate(NORMALPRIO+1, 0, wsT1, sizeof(wsT1), Thread6, chThdSelf());
+  while (chSysGetTime() < time)
+    i = chMsgSend(t1, i);
+  chThdTerminate(t1);
+  chMsgSend(t1, 0); /* Lets the thread check the termination flag.*/
+  chThdWait(t1);
+  print("Messages throughput = ");
+  printn(i);
+  print(" msg/S, ");
+  printn(i << 1);
+  println(" ctxsw/S");
+
   println("\r\nTest complete");
   return 0;
 }
-- 
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