update

[lttv.git] / markers-test / test-mark-speed-empty.c

diff --git a/markers-test/test-mark-speed-empty.c b/markers-test/test-mark-speed-empty.c
index c960ec03b7fcf0ab0bb37772fda80aebfc97d47b..ceaac9da04616a66eca206e0da81f35cdc9d4c37 100644 (file)
--- a/markers-test/test-mark-speed-empty.c
+++ b/markers-test/test-mark-speed-empty.c
@@ -52,13 +52,22 @@ static void noinline test2(const struct marker *mdata,
        //asm volatile ("");
 struct proc_dir_entry *pentry = NULL;
 
+char temp0[8192];
+int temp[8192] __cacheline_aligned;
+char temp5[8192];
+
 static inline void test(unsigned long arg, unsigned long arg2)
 {
 #ifdef CACHEFLUSH
        wbinvd();
 #endif
-       asm ("" : : "i" ((100 + 60) << 10));
-       asm volatile ("");
+       temp[2] = (temp[0] + 60) << 10;
+       temp[3] = (temp[2] + 60) << 10;
+       temp[4] = (temp[3] + 60) << 10;
+       temp[0] = (temp[4] + 60) << 10;
+       barrier();
+       asm ("");
+       barrier();
        //__my_trace_mark(1, kernel_debug_test, NULL, "%d %d %ld %ld", 2, current->pid, arg, arg2);
        //__my_trace_mark(0, kernel_debug_test, NULL, "%d %d %ld %ld", 2, current->pid, arg, arg2);
 }
@@ -70,10 +79,14 @@ static int my_open(struct inode *inode, struct file *file)
        unsigned long flags;
 
        local_irq_save(flags);
+#ifdef CACHEFLUSH
+       wbinvd();       /* initial write back, without cycle count */
+       msleep(20);     /* wait for L2 flush */
+#endif
        rdtsc_barrier();
        cycles1 = get_cycles();
        rdtsc_barrier();
-       for(i=0; i<200; i++) {
+       for(i=0; i<2000; i++) {
                test(i, i);
                test(i, i);
                test(i, i);