X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=tests%2Fkernel%2Ftest-time-probe.c;h=9ee86e50160f13faca40e0b001d70da198e6d20e;hb=e1d6ac89c5b7471a44f99a4ea98c7f810d1d46bc;hp=29f870b3749e3882c970d30f829f0f8f2051a8e1;hpb=884367fdde7eb9232dab47998c4cad44c28591a1;p=lttv.git

diff --git a/tests/kernel/test-time-probe.c b/tests/kernel/test-time-probe.c
index 29f870b3..9ee86e50 100644
--- a/tests/kernel/test-time-probe.c
+++ b/tests/kernel/test-time-probe.c
@@ -4,15 +4,50 @@
  */
 
 
+#define CONFIG_LTT_FACILITY_TESTS
+#include "ltt-facility-tests.h"
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/ltt-core.h>
 
+
+/* Event logged : 4 bytes + 20 bytes header = 24 bytes. Let's use 1MB of
+ * buffers. 1MB / 24bytes = 43690. So, if we write 20000 event, we should not
+ * lose events. Check event lost count after tests. */
+
+#define NR_LOOPS 20000
+
 static int ltt_test_init(void)
 {
+	unsigned int i;
+	cycles_t time1, time2, time;
+	cycles_t max_time = 0, min_time = 18446744073709551615ULL; /* (2^64)-1 */
+	cycles_t tot_time = 0;
+	unsigned long flags;
 	printk(KERN_ALERT "test init\n");
+	
+	local_irq_save(flags);
+	for(i=0; i<NR_LOOPS; i++) {
+		time1 = get_cycles();
+		trace_tests_write_4bytes(5000);
+		time2 = get_cycles();
+		time = time2 - time1;
+		max_time = max(max_time, time);
+		min_time = min(min_time, time);
+		tot_time += time;
+	}
+	local_irq_restore(flags);
+
+	printk(KERN_ALERT "test results : time per probe\n");
+	printk(KERN_ALERT "number of loops : %d\n", NR_LOOPS);
+	printk(KERN_ALERT "total time : %llu\n", tot_time);
+	printk(KERN_ALERT "min : %llu\n", min_time);
+	printk(KERN_ALERT "max : %llu\n", max_time);
 
-	return 0;
+	printk(KERN_ALERT "test end\n");
+	
+	return -EAGAIN; /* Fail will directly unload the module */
 }
 
 static void ltt_test_exit(void)