Publish

3 files changed, 52 insertions, 0 deletions

diff --git a/vespalib/src/tests/benchmark_timer/.gitignore b/vespalib/src/tests/benchmark_timer/.gitignore
new file mode 100644
index 00000000000..6837dcd2afe
--- /dev/null
+++ b/vespalib/src/tests/benchmark_timer/.gitignore
@@ -0,0 +1 @@
+vespalib_benchmark_timer_test_app
diff --git a/vespalib/src/tests/benchmark_timer/CMakeLists.txt b/vespalib/src/tests/benchmark_timer/CMakeLists.txt
new file mode 100644
index 00000000000..605e1723d19
--- /dev/null
+++ b/vespalib/src/tests/benchmark_timer/CMakeLists.txt
@@ -0,0 +1,8 @@
+# Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+vespa_add_executable(vespalib_benchmark_timer_test_app
+    SOURCES
+    benchmark_timer_test.cpp
+    DEPENDS
+    vespalib
+)
+vespa_add_test(NAME vespalib_benchmark_timer_test_app COMMAND vespalib_benchmark_timer_test_app BENCHMARK)
diff --git a/vespalib/src/tests/benchmark_timer/benchmark_timer_test.cpp b/vespalib/src/tests/benchmark_timer/benchmark_timer_test.cpp
new file mode 100644
index 00000000000..42f6af0e1ea
--- /dev/null
+++ b/vespalib/src/tests/benchmark_timer/benchmark_timer_test.cpp
@@ -0,0 +1,43 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#include <vespa/fastos/fastos.h>
+#include <vespa/vespalib/testkit/test_kit.h>
+#include <vespa/vespalib/util/benchmark_timer.h>
+
+using namespace vespalib;
+
+TEST("require that the benchmark timer can be used as advertised") {
+    BenchmarkTimer timer(1.0);
+    while (timer.has_budget()) {
+        timer.before();
+        FastOS_Thread::Sleep(5);
+        timer.after();
+    }
+    EXPECT_TRUE(timer.min_time() >= 0.0);
+    fprintf(stderr, "5 ms sleep takes: %g ms\n", timer.min_time() * 1000.0);
+}
+
+TEST("require that the benchmark timer all-in-one benchmarking works") {
+    uint32_t sleep_time = 5;
+    double t = BenchmarkTimer::benchmark([sleep_time](){FastOS_Thread::Sleep(sleep_time);}, 1.0);
+    fprintf(stderr, "5 ms sleep takes: %g ms\n", t * 1000.0);
+}
+
+TEST("require that the benchmark timer all-in-one benchmarking with baseline works") {
+    uint32_t work_time = 10;
+    uint32_t baseline_time = 5;
+    double t = BenchmarkTimer::benchmark([&](){FastOS_Thread::Sleep(work_time);},
+                                         [&](){FastOS_Thread::Sleep(baseline_time);}, 1.0);
+    fprintf(stderr, "10 ms sleep - 5 ms sleep takes: %g ms\n", t * 1000.0);
+}
+
+TEST("require that the benchmark timer all-in-one benchmarking with baseline and specified loop count works") {
+    uint32_t work_time = 2;
+    uint32_t baseline_time = 1;
+    uint32_t loop_cnt = 0;
+    double t = BenchmarkTimer::benchmark([&](){FastOS_Thread::Sleep(work_time); ++loop_cnt;},
+                                         [&](){FastOS_Thread::Sleep(baseline_time);}, 7, 0.0);
+    EXPECT_EQUAL(loop_cnt, 7u);
+    fprintf(stderr, "2 ms sleep - 1 ms sleep takes: %g ms\n", t * 1000.0);
+}
+
+TEST_MAIN() { TEST_RUN_ALL(); }