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 eecef2178e840ff8f432836cf625cba988dbebbd..10b3ffce8eccf67c2f510944faa8b56bd01420ba 100644 (file)
--- a/markers-test/test-mark-speed-empty.c
+++ b/markers-test/test-mark-speed-empty.c
@@ -79,6 +79,9 @@ 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 */
+#endif
        rdtsc_barrier();
        cycles1 = get_cycles();
        rdtsc_barrier();