move everything out of trunk

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

diff --git a/trunk/tests/kernel/test-ipi.c b/trunk/tests/kernel/test-ipi.c
deleted file mode 100644 (file)
index 6f3f4fb..0000000
--- a/trunk/tests/kernel/test-ipi.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * test-ipi.c
- *
- * Copyright 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- * Distributed under GPLv2
- */
-
-#include <linux/jiffies.h>
-#include <linux/compiler.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/math64.h>
-#include <linux/spinlock.h>
-#include <linux/seqlock.h>
-#include <linux/cpumask.h>
-#include <linux/smp.h>
-#include <asm/timex.h>
-#include <asm/system.h>
-
-#ifdef CONFIG_ARM
-#include <linux/trace-clock.h>
-#define get_timestamp  trace_clock_read64
-#else
-#define get_timestamp  get_cycles
-#endif
-
-#define NR_LOOPS 20000
-
-int test_val;
-
-static void do_testbaseline(void)
-{
-       unsigned long flags;
-       unsigned int i;
-       cycles_t time1, time2, time;
-       u32 rem;
-
-       local_irq_save(flags);
-       preempt_disable();
-       time1 = get_timestamp();
-       for (i = 0; i < NR_LOOPS; i++) {
-               asm volatile ("");
-       }
-       time2 = get_timestamp();
-       local_irq_restore(flags);
-       preempt_enable();
-       time = time2 - time1;
-
-       printk(KERN_ALERT "test results: time for baseline\n");
-       printk(KERN_ALERT "number of loops: %d\n", NR_LOOPS);
-       printk(KERN_ALERT "total time: %llu\n", (unsigned long long)time);
-       time = div_u64_rem(time, NR_LOOPS, &rem);
-       printk(KERN_ALERT "-> baseline takes %llu cycles\n", (unsigned long long)time);
-       printk(KERN_ALERT "test end\n");
-}
-
-static void remote_wmb(void *info)
-{
-       smp_wmb();
-}
-
-static void do_test_ipi(void)
-{
-       unsigned int i;
-       int cpu;
-       cycles_t time1, time2, time;
-       u32 rem;
-
-       preempt_disable();
-       cpu = smp_processor_id();
-       if (cpu == 0)
-               cpu = 1;
-       else
-               cpu = 0;
-       time1 = get_timestamp();
-       for (i = 0; i < NR_LOOPS; i++) {
-               smp_call_function_single(cpu, remote_wmb, NULL, 1);
-       }
-       time2 = get_timestamp();
-       preempt_enable();
-       time = time2 - time1;
-
-       printk(KERN_ALERT "test results: time for ipi\n");
-       printk(KERN_ALERT "number of loops: %d\n", NR_LOOPS);
-       printk(KERN_ALERT "total time: %llu\n", (unsigned long long)time);
-       time = div_u64_rem(time, NR_LOOPS, &rem);
-       printk(KERN_ALERT "-> ipi takes %llu cycles\n", (unsigned long long)time);
-       printk(KERN_ALERT "test end\n");
-}
-
-static void do_test_wmb(void)
-{
-       unsigned int i;
-       cycles_t time1, time2, time;
-       u32 rem;
-
-       preempt_disable();
-       time1 = get_timestamp();
-       for (i = 0; i < NR_LOOPS; i++) {
-               wmb();
-       }
-       time2 = get_timestamp();
-       preempt_enable();
-       time = time2 - time1;
-
-       printk(KERN_ALERT "test results: time for ipi\n");
-       printk(KERN_ALERT "number of loops: %d\n", NR_LOOPS);
-       printk(KERN_ALERT "total time: %llu\n", (unsigned long long)time);
-       time = div_u64_rem(time, NR_LOOPS, &rem);
-       printk(KERN_ALERT "-> ipi takes %llu cycles\n", (unsigned long long)time);
-       printk(KERN_ALERT "test end\n");
-}
-
-static int ltt_test_init(void)
-{
-       printk(KERN_ALERT "test init\n");
-       
-       printk(KERN_ALERT "Number of active CPUs : %d\n", num_online_cpus());
-       do_testbaseline();
-       do_test_ipi();
-       do_test_wmb();
-       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("Test read lock speed");