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[perf-test] Add a benchmark for body.scrollTop
authorharaken@chromium.org <haraken@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Fri, 18 May 2012 06:03:56 +0000 (06:03 +0000)
committerharaken@chromium.org <haraken@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Fri, 18 May 2012 06:03:56 +0000 (06:03 +0000)
https://bugs.webkit.org/show_bug.cgi?id=86806

Reviewed by Ryosuke Niwa.

Currently Bindings/dom-attributes.html is just a collection of random
DOM attributes and methods. We should remove it and instead add more
reasonable micro benchmarks by classifying DOM binding call paths.

This patch adds a benchmark for body.scrollTop, which covers other
DOM attributes that return small integers.

(Note: Performance optimization for the benchmark will be coming soon.)

Test results in my Linux desktop:

RESULT Bindings: scroll-top= 209.410654239 runs/s
median= 211.64021164 runs/s, stdev= 4.09958741195 runs/s, min= 201.005025126 runs/s, max= 212.483399734 runs/s

RESULT Bindings: scroll-top= 195.651111157 runs/s
median= 196.319018405 runs/s, stdev= 1.77011627406 runs/s, min= 191.846522782 runs/s, max= 197.28729963 runs/s
RESULT Bindings: scroll-top= 200.004907612 runs/s
median= 201.511335013 runs/s, stdev= 3.27455403827 runs/s, min= 193.236714976 runs/s, max= 202.53164557 runs/s

RESULT Bindings: scroll-top= 209.582737512 runs/s
median= 210.803689065 runs/s, stdev= 3.16769655464 runs/s, min= 203.045685279 runs/s, max= 211.920529801 runs/s

RESULT Bindings: scroll-top= 199.924607687 runs/s
median= 201.13144338 runs/s, stdev= 3.11080503619 runs/s, min= 193.003618818 runs/s, max= 202.02020202 runs/s

* Bindings/scroll-top.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@117547 268f45cc-cd09-0410-ab3c-d52691b4dbfc

PerformanceTests/Bindings/scroll-top.html [new file with mode: 0644] patch | blob
PerformanceTests/ChangeLog patch | blob | history

diff --git a/PerformanceTests/Bindings/scroll-top.html b/PerformanceTests/Bindings/scroll-top.html
new file mode 100644 (file)
index 0000000..78318eb
--- /dev/null
+++ b/PerformanceTests/Bindings/scroll-top.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script src="../resources/runner.js"></script>
+<script>
+PerfTestRunner.runPerSecond({
+    description: "This benchmark covers DOM attributes that return small integers.",
+    run: function() {
+        var localBody = document.body;
+        for (var i = 0; i < 100000; i++)
+            localBody.scrollTop;
+}});
+</script>
+</body>
+</html>
diff --git a/PerformanceTests/ChangeLog b/PerformanceTests/ChangeLog
index ddc283b..c89d409 100644 (file)
--- a/PerformanceTests/ChangeLog
+++ b/PerformanceTests/ChangeLog
@@ -1,5 +1,39 @@
 2012-05-17  Kentaro Hara  <haraken@chromium.org>
 
+        [perf-test] Add a benchmark for body.scrollTop
+        https://bugs.webkit.org/show_bug.cgi?id=86806
+
+        Reviewed by Ryosuke Niwa.
+
+        Currently Bindings/dom-attributes.html is just a collection of random
+        DOM attributes and methods. We should remove it and instead add more
+        reasonable micro benchmarks by classifying DOM binding call paths.
+
+        This patch adds a benchmark for body.scrollTop, which covers other
+        DOM attributes that return small integers.
+
+        (Note: Performance optimization for the benchmark will be coming soon.)
+
+        Test results in my Linux desktop:
+
+        RESULT Bindings: scroll-top= 209.410654239 runs/s
+        median= 211.64021164 runs/s, stdev= 4.09958741195 runs/s, min= 201.005025126 runs/s, max= 212.483399734 runs/s
+
+        RESULT Bindings: scroll-top= 195.651111157 runs/s
+        median= 196.319018405 runs/s, stdev= 1.77011627406 runs/s, min= 191.846522782 runs/s, max= 197.28729963 runs/s
+        RESULT Bindings: scroll-top= 200.004907612 runs/s
+        median= 201.511335013 runs/s, stdev= 3.27455403827 runs/s, min= 193.236714976 runs/s, max= 202.53164557 runs/s
+
+        RESULT Bindings: scroll-top= 209.582737512 runs/s
+        median= 210.803689065 runs/s, stdev= 3.16769655464 runs/s, min= 203.045685279 runs/s, max= 211.920529801 runs/s
+
+        RESULT Bindings: scroll-top= 199.924607687 runs/s
+        median= 201.13144338 runs/s, stdev= 3.11080503619 runs/s, min= 193.003618818 runs/s, max= 202.02020202 runs/s
+
+        * Bindings/scroll-top.html: Added.
+
+2012-05-17  Kentaro Hara  <haraken@chromium.org>
+
         [perf-test] Add a micro benchmark for div.firstChild getter for an undefined firstChild
         https://bugs.webkit.org/show_bug.cgi?id=86725
 
Domain: Web Framework / Uncategorized;