move everything out of trunk

[lttv.git] / trunk / tests / kernel / test-prefix-speed.c

diff --git a/trunk/tests/kernel/test-prefix-speed.c b/trunk/tests/kernel/test-prefix-speed.c
deleted file mode 100644 (file)
index 55518b2..0000000
--- a/trunk/tests/kernel/test-prefix-speed.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* test-nop-speed.c
- *
- */
-
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <linux/sched.h>
-#include <linux/timex.h>
-#include <asm/atomic.h>
-#include <asm/ptrace.h>
-
-#define NR_TESTS 10000000
-
-int var, var2;
-atomic64_t atomicval;
-
-struct proc_dir_entry *pentry = NULL;
-
-
-static inline long test_nop_atomic64_add_return(long i, atomic64_t *v)
-{
-       long __i = i;
-       asm volatile(".byte 0x90;"
-                    "xaddq %0, %1;"
-                    : "+r" (i), "+m" (v->counter)
-                    : : "memory");
-       return i + __i;
-}
-
-static inline long test_prefix_atomic64_add_return(long i, atomic64_t *v)
-{
-       long __i = i;
-       asm volatile(".byte 0x3E;"
-                    "xaddq %0, %1;"
-                    : "+r" (i), "+m" (v->counter)
-                    : : "memory");
-       return i + __i;
-}
-
-static inline long test_lock_atomic64_add_return(long i, atomic64_t *v)
-{
-       long __i = i;
-       asm volatile(".byte 0xf0;"
-                    "xaddq %0, %1;"
-                    : "+r" (i), "+m" (v->counter)
-                    : : "memory");
-       return i + __i;
-}
-
-
-
-void empty(void)
-{
-       asm volatile ("");
-       var += 50;
-       var /= 10;
-       var *= var2;
-}
-
-void testnop(void)
-{
-       test_nop_atomic64_add_return(5, &atomicval);
-       var += 50;
-       var /= 10;
-       var *= var2;
-}
-
-void testprefix(void)
-{
-       test_prefix_atomic64_add_return(5, &atomicval);
-       var += 50;
-       var /= 10;
-       var *= var2;
-}
-
-void testlock(void)
-{
-       test_lock_atomic64_add_return(5, &atomicval);
-       var += 50;
-       var /= 10;
-       var *= var2;
-}
-
-
-
-void perform_test(const char *name, void (*callback)(void))
-{
-       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<NR_TESTS; i++) {
-               callback();
-       }
-       rdtsc_barrier();
-       cycles2 = get_cycles();
-       rdtsc_barrier();
-       local_irq_restore(flags);
-       printk("test %s cycles : %llu\n", name, cycles2-cycles1);
-}
-
-static int my_open(struct inode *inode, struct file *file)
-{
-       printk("NR_TESTS %d\n", NR_TESTS);
-
-       perform_test("empty", empty);
-       printk("value : %ld\n", atomic64_read(&atomicval));
-       perform_test("test 1-byte nop xadd", testnop);
-       printk("value : %ld\n", atomic64_read(&atomicval));
-       perform_test("test DS override prefix xadd", testprefix);
-       printk("value : %ld\n", atomic64_read(&atomicval));
-       perform_test("test LOCK xadd", testlock);
-       printk("value : %ld\n", atomic64_read(&atomicval));
-
-       return -EPERM;
-}
-
-
-static struct file_operations my_operations = {
-       .open = my_open,
-};
-
-int init_module(void)
-{
-       pentry = create_proc_entry("testprefix", 0444, NULL);
-       if (pentry)
-               pentry->proc_fops = &my_operations;
-
-       return 0;
-}
-
-void cleanup_module(void)
-{
-       remove_proc_entry("testprefix", NULL);
-}
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("prefix test");