update test

git-svn-id: http://ltt.polymtl.ca/svn@3029 04897980-b3bd-0310-b5e0-8ef037075253

diff --git a/trunk/tests/kernel/test-fair-rwlock.c b/trunk/tests/kernel/test-fair-rwlock.c
index 109851ff79166adfb2fdda9e2d943d97962b1a2e..2cc1ba634618cb7ad82961b7bd6aecf1e112dc12 100644 (file)
--- a/trunk/tests/kernel/test-fair-rwlock.c
+++ b/trunk/tests/kernel/test-fair-rwlock.c
@@ -47,8 +47,11 @@
 #define NR_INTERRUPT_READERS 1
 #define NR_TRYLOCK_INTERRUPT_READERS 1
 
-/* Writer iteration delay, in ms. 0 for busy loop. */
-#define WRITER_DELAY 1
+/*
+ * Writer iteration delay, in us. 0 for busy loop. Caution : writers can
+ * starve readers.
+ */
+#define WRITER_DELAY 10
 
 static int var[NR_VARS];
 static struct task_struct *reader_threads[NR_READERS];
@@ -252,7 +255,7 @@ static int writer_thread(void *data)
                fair_write_unlock_irq(&frwlock);
                preempt_enable();       /* for get_cycles accuracy */
                if (WRITER_DELAY > 0)
-                       msleep(WRITER_DELAY);
+                       udelay(WRITER_DELAY);
        } while (!kthread_should_stop());
        printk("writer_thread/%lu iterations : %lu, "
                "max contention %llu cycles\n",
@@ -282,7 +285,7 @@ static int trylock_writer_thread(void *data)
                //fair_write_unlock(&frwlock);
                fair_write_unlock_irq(&frwlock);
                if (WRITER_DELAY > 0)
-                       msleep(WRITER_DELAY);
+                       udelay(WRITER_DELAY);
        } while (!kthread_should_stop());
        printk("trylock_writer_thread/%lu iterations : %lu, "
                "successful iterations : %lu\n",