X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=trunk%2Ftests%2Fkernel%2Ftest-fct-speed.c;fp=trunk%2Ftests%2Fkernel%2Ftest-fct-speed.c;h=079e4793f5df74e5148f0e3ad575651155fcdcf4;hb=3d6e46e15a388687ca1c5b7e2eec831eccd59d2d;hp=0000000000000000000000000000000000000000;hpb=ec7a5af61127aa50a1839eee5be99ce53494c57b;p=lttv.git

diff --git a/trunk/tests/kernel/test-fct-speed.c b/trunk/tests/kernel/test-fct-speed.c
new file mode 100644
index 00000000..079e4793
--- /dev/null
+++ b/trunk/tests/kernel/test-fct-speed.c
@@ -0,0 +1,65 @@
+/* test-mark.c
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/timex.h>
+#include <linux/marker.h>
+#include <asm/ptrace.h>
+
+	//asm volatile ("");
+struct proc_dir_entry *pentry = NULL;
+
+void test(unsigned long arg)
+{
+	asm volatile ("");
+	//trace_mark(test_marker, "arg1 %lu arg2 %p", arg, current);
+}
+
+static int my_open(struct inode *inode, struct file *file)
+{
+	unsigned int i;
+	cycles_t cycles1, cycles2;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	rdtsc_barrier();
+	cycles1 = get_cycles();
+	rdtsc_barrier();
+	for(i=0; i<20000; i++) {
+		test(i);
+	}
+	rdtsc_barrier();
+	cycles2 = get_cycles();
+	rdtsc_barrier();
+	local_irq_restore(flags);
+	printk("cycles : %llu\n", cycles2-cycles1);
+	return -EPERM;
+}
+
+
+static struct file_operations my_operations = {
+	.open = my_open,
+};
+
+int init_module(void)
+{
+	pentry = create_proc_entry("testmark", 0444, NULL);
+	if (pentry)
+		pentry->proc_fops = &my_operations;
+
+	printk("test addr %p\n", &test);
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	remove_proc_entry("testmark", NULL);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mathieu Desnoyers");
+MODULE_DESCRIPTION("Marker Test");
+