From 50035446fa78f78a7ad068d05d34df393281cbe8 Mon Sep 17 00:00:00 2001
From: compudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Date: Thu, 8 May 2008 01:47:54 +0000
Subject: [PATCH 1/1] update

git-svn-id: http://ltt.polymtl.ca/svn@2899 04897980-b3bd-0310-b5e0-8ef037075253
---
 tests/kernel/test-trace-speed.c | 64 +++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 tests/kernel/test-trace-speed.c

diff --git a/tests/kernel/test-trace-speed.c b/tests/kernel/test-trace-speed.c
new file mode 100644
index 00000000..4537eb06
--- /dev/null
+++ b/tests/kernel/test-trace-speed.c
@@ -0,0 +1,64 @@
+/* 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;
+
+static inline 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;
+
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	remove_proc_entry("testmark", NULL);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mathieu Desnoyers");
+MODULE_DESCRIPTION("Marker Test");
+
-- 
2.34.1