[perf-test] Add a benchmark for querySelector()

https://bugs.webkit.org/show_bug.cgi?id=87742

Reviewed by Ryosuke Niwa.

Now I am optimizing querySelector() (bug 87625).
This patch adds a performance test for querySelector().
query-selector-first.html queries an element that appears
at the head of the document. On the other hand,
query-selector-last.html queries an element that appears
at the tail of the document.

Test results in my desktop:

[query-selector-first.html]
RESULT Parser: query-selector-first= 252.339803014 runs/s
median= 253.646265594 runs/s, stdev= 2.32610873209 runs/s, min= 248.138957816 runs/s, max= 254.777070064 runs/s

RESULT Parser: query-selector-first= 252.688468897 runs/s
median= 252.684876579 runs/s, stdev= 3.60008778708 runs/s, min= 246.002460025 runs/s, max= 258.397932817 runs/s

RESULT Parser: query-selector-first= 253.466019656 runs/s
median= 254.129606099 runs/s, stdev= 1.78002675664 runs/s, min= 247.831474597 runs/s, max= 254.777070064 runs/s

RESULT Parser: query-selector-first= 256.245078189 runs/s
median= 257.06940874 runs/s, stdev= 2.84722072201 runs/s, min= 249.687890137 runs/s, max= 259.74025974 runs/s

RESULT Parser: query-selector-first= 252.203100497 runs/s
median= 252.047989175 runs/s, stdev= 1.75233446036 runs/s, min= 248.138957816 runs/s, max= 255.427841635 runs/s

[query-selector-last.html]
RESULT Parser: query-selector-last= 356.009616076 runs/s
median= 355.781448539 runs/s, stdev= 0.841519086864 runs/s, min= 354.430379747 runs/s, max= 358.056265985 runs/s

RESULT Parser: query-selector-last= 360.735271001 runs/s
median= 361.057532424 runs/s, stdev= 1.12253219867 runs/s, min= 358.514724712 runs/s, max= 362.225097025 runs/s

RESULT Parser: query-selector-last= 359.598592463 runs/s
median= 359.435173299 runs/s, stdev= 0.816538258728 runs/s, min= 358.056265985 runs/s, max= 360.824742268 runs/s

RESULT Parser: query-selector-last= 357.260651715 runs/s
median= 357.598978289 runs/s, stdev= 1.17393159885 runs/s, min= 353.982300885 runs/s, max= 358.974358974 runs/s

RESULT Parser: query-selector-last= 351.696240713 runs/s
median= 351.980025916 runs/s, stdev= 1.14200564038 runs/s, min= 348.692403487 runs/s, max= 353.535353535 runs/s

* Parser/query-selector-first.html: Added.
* Parser/query-selector-last.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@118899 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/PerformanceTests/ChangeLog b/PerformanceTests/ChangeLog
index 034c1ce..3fcdfb7 100644 (file)
--- a/PerformanceTests/ChangeLog
+++ b/PerformanceTests/ChangeLog
@@ -1,3 +1,54 @@
+2012-05-30  Kentaro Hara  <haraken@chromium.org>
+
+        [perf-test] Add a benchmark for querySelector()
+        https://bugs.webkit.org/show_bug.cgi?id=87742
+
+        Reviewed by Ryosuke Niwa.
+
+        Now I am optimizing querySelector() (bug 87625).
+        This patch adds a performance test for querySelector().
+        query-selector-first.html queries an element that appears
+        at the head of the document. On the other hand,
+        query-selector-last.html queries an element that appears
+        at the tail of the document.
+
+        Test results in my desktop:
+
+        [query-selector-first.html]
+        RESULT Parser: query-selector-first= 252.339803014 runs/s
+        median= 253.646265594 runs/s, stdev= 2.32610873209 runs/s, min= 248.138957816 runs/s, max= 254.777070064 runs/s
+
+        RESULT Parser: query-selector-first= 252.688468897 runs/s
+        median= 252.684876579 runs/s, stdev= 3.60008778708 runs/s, min= 246.002460025 runs/s, max= 258.397932817 runs/s
+
+        RESULT Parser: query-selector-first= 253.466019656 runs/s
+        median= 254.129606099 runs/s, stdev= 1.78002675664 runs/s, min= 247.831474597 runs/s, max= 254.777070064 runs/s
+
+        RESULT Parser: query-selector-first= 256.245078189 runs/s
+        median= 257.06940874 runs/s, stdev= 2.84722072201 runs/s, min= 249.687890137 runs/s, max= 259.74025974 runs/s
+
+        RESULT Parser: query-selector-first= 252.203100497 runs/s
+        median= 252.047989175 runs/s, stdev= 1.75233446036 runs/s, min= 248.138957816 runs/s, max= 255.427841635 runs/s
+
+        [query-selector-last.html]
+        RESULT Parser: query-selector-last= 356.009616076 runs/s
+        median= 355.781448539 runs/s, stdev= 0.841519086864 runs/s, min= 354.430379747 runs/s, max= 358.056265985 runs/s
+
+        RESULT Parser: query-selector-last= 360.735271001 runs/s
+        median= 361.057532424 runs/s, stdev= 1.12253219867 runs/s, min= 358.514724712 runs/s, max= 362.225097025 runs/s
+
+        RESULT Parser: query-selector-last= 359.598592463 runs/s
+        median= 359.435173299 runs/s, stdev= 0.816538258728 runs/s, min= 358.056265985 runs/s, max= 360.824742268 runs/s
+
+        RESULT Parser: query-selector-last= 357.260651715 runs/s
+        median= 357.598978289 runs/s, stdev= 1.17393159885 runs/s, min= 353.982300885 runs/s, max= 358.974358974 runs/s
+
+        RESULT Parser: query-selector-last= 351.696240713 runs/s
+        median= 351.980025916 runs/s, stdev= 1.14200564038 runs/s, min= 348.692403487 runs/s, max= 353.535353535 runs/s
+
+        * Parser/query-selector-first.html: Added.
+        * Parser/query-selector-last.html: Added.
+
 2012-05-25  Ilya Tikhonovsky  <loislo@chromium.org>
 
         Web Inspector: HeapSnapshot: introduce performance counter for HeapSnapshotConstructorsDataGrid._aggregatesReceived method.

diff --git a/PerformanceTests/Parser/query-selector-first.html b/PerformanceTests/Parser/query-selector-first.html
new file mode 100644 (file)
index 0000000..2531f8c
--- /dev/null
+++ b/PerformanceTests/Parser/query-selector-first.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<body>
+<h1 id="id" class="class"></h1>
+<script src="../resources/runner.js"></script>
+<script>
+PerfTestRunner.runPerSecond({
+    description: "This benchmark tests querySelector() for an element that appears near the head of the document",
+    run: function() {
+        for (var i = 0; i < 1000; i++) {
+            document.querySelector("h1");
+            document.querySelector("#id");
+            document.querySelector(".class");
+        }
+}});
+</script>
+</body>
+</html>

diff --git a/PerformanceTests/Parser/query-selector-last.html b/PerformanceTests/Parser/query-selector-last.html
new file mode 100644 (file)
index 0000000..8a84e57
--- /dev/null
+++ b/PerformanceTests/Parser/query-selector-last.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script src="../resources/runner.js"></script>
+<script>
+for (var i = 0; i < 1000; i++) {
+    var div = document.createElement("div");
+    div.id = "foo";
+    div.className = "bar";
+    document.body.appendChild(div);
+}
+
+var h1 = document.createElement("h1");
+h1.id = "id";
+h1.className = "class";
+document.body.appendChild(h1);
+
+PerfTestRunner.runPerSecond({
+    description: "This benchmark tests querySelector() for an element that appears near the tail of the document",
+    run: function() {
+        for (var i = 0; i < 100; i++) {
+            document.querySelector("h1");
+            document.querySelector("#id");
+            document.querySelector(".class");
+        }
+}});
+</script>
+</body>
+</html>