+++ /dev/null
-/* test-irqloop
- *
- * Test time spent for irq disabling
- */
-
-
-#include <linux/jiffies.h>
-#include <linux/compiler.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#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");
-
- time1 = get_cycles();
- for(i=0; i<NR_LOOPS; i++) {
- local_irq_save(flags);
- local_irq_restore(flags);
- }
- time2 = get_cycles();
- time = time2 - time1;
- tot_time += time;
-
- printk(KERN_ALERT "test results : time for irq save/restore\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);
-
- printk(KERN_ALERT "test end\n");
-
- return -EAGAIN; /* Fail will directly unload the module */
-}
-
-static void ltt_test_exit(void)
-{
- printk(KERN_ALERT "test exit\n");
-}
-
-module_init(ltt_test_init)
-module_exit(ltt_test_exit)
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Linux Trace Toolkit Test");
-