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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:18:31 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:42:15 +0300
commit437fd90c0250dee670290f9b714253671a990160 (patch)
treeb871786c360704244a07411c69fb58da9ead4a06 /qemu/tests/test-timed-average.c
parent5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff)
These changes are the raw update to qemu-2.6.
Collission happened in the following patches: migration: do cleanup operation after completion(738df5b9) Bug fix.(1750c932f86) kvmclock: add a new function to update env->tsc.(b52baab2) The code provided by the patches was already in the upstreamed version. Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/tests/test-timed-average.c')
-rw-r--r--qemu/tests/test-timed-average.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/qemu/tests/test-timed-average.c b/qemu/tests/test-timed-average.c
new file mode 100644
index 000000000..1cc4ab302
--- /dev/null
+++ b/qemu/tests/test-timed-average.c
@@ -0,0 +1,90 @@
+/*
+ * Timed average computation tests
+ *
+ * Copyright Nodalink, EURL. 2014
+ *
+ * Authors:
+ * Benoît Canet <benoit.canet@nodalink.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include <glib.h>
+
+#include "qemu/timed-average.h"
+
+/* This is the clock for QEMU_CLOCK_VIRTUAL */
+static int64_t my_clock_value;
+
+int64_t cpu_get_clock(void)
+{
+ return my_clock_value;
+}
+
+static void account(TimedAverage *ta)
+{
+ timed_average_account(ta, 1);
+ timed_average_account(ta, 5);
+ timed_average_account(ta, 2);
+ timed_average_account(ta, 4);
+ timed_average_account(ta, 3);
+}
+
+static void test_average(void)
+{
+ TimedAverage ta;
+ uint64_t result;
+ int i;
+
+ /* we will compute some average on a period of 1 second */
+ timed_average_init(&ta, QEMU_CLOCK_VIRTUAL, NANOSECONDS_PER_SECOND);
+
+ result = timed_average_min(&ta);
+ g_assert(result == 0);
+ result = timed_average_avg(&ta);
+ g_assert(result == 0);
+ result = timed_average_max(&ta);
+ g_assert(result == 0);
+
+ for (i = 0; i < 100; i++) {
+ account(&ta);
+ result = timed_average_min(&ta);
+ g_assert(result == 1);
+ result = timed_average_avg(&ta);
+ g_assert(result == 3);
+ result = timed_average_max(&ta);
+ g_assert(result == 5);
+ my_clock_value += NANOSECONDS_PER_SECOND / 10;
+ }
+
+ my_clock_value += NANOSECONDS_PER_SECOND * 100;
+
+ result = timed_average_min(&ta);
+ g_assert(result == 0);
+ result = timed_average_avg(&ta);
+ g_assert(result == 0);
+ result = timed_average_max(&ta);
+ g_assert(result == 0);
+
+ for (i = 0; i < 100; i++) {
+ account(&ta);
+ result = timed_average_min(&ta);
+ g_assert(result == 1);
+ result = timed_average_avg(&ta);
+ g_assert(result == 3);
+ result = timed_average_max(&ta);
+ g_assert(result == 5);
+ my_clock_value += NANOSECONDS_PER_SECOND / 10;
+ }
+}
+
+int main(int argc, char **argv)
+{
+ /* tests in the same order as the header function declarations */
+ g_test_init(&argc, &argv, NULL);
+ g_test_add_func("/timed-average/average", test_average);
+ return g_test_run();
+}
+