Make SvgCubics performance test more consistent

https://bugs.webkit.org/show_bug.cgi?id=89778

Reviewed by Ryosuke Niwa.

Previously this test ran twice for each iteration, but this led to inconsistent repaints.
This change updates the test to only run once per iteration, and adds even more cubics
so that the test runs consistently in the 80ms range on my Linux desktop.

Performance results on my desktop:
    RESULT SVG: SvgCubics= 80.5 ms
    median= 82.0 ms, stdev= 3.04138126515 ms, min= 75.0 ms, max= 85.0 ms

    RESULT SVG: SvgCubics= 80.1 ms
    median= 81.0 ms, stdev= 4.27668095607 ms, min= 74.0 ms, max= 88.0 ms

    RESULT SVG: SvgCubics= 81.45 ms
    median= 83.0 ms, stdev= 4.01839520207 ms, min= 75.0 ms, max= 89.0 ms

    RESULT SVG: SvgCubics= 78.9 ms
    median= 80.0 ms, stdev= 4.75289385533 ms, min= 72.0 ms, max= 87.0 ms

* SVG/SvgCubics.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121071 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/PerformanceTests/ChangeLog b/PerformanceTests/ChangeLog
index 6a172ec..d0b3119 100644 (file)
--- a/PerformanceTests/ChangeLog
+++ b/PerformanceTests/ChangeLog
@@ -1,3 +1,29 @@
+2012-06-22  Philip Rogers  <pdr@google.com>
+
+        Make SvgCubics performance test more consistent
+        https://bugs.webkit.org/show_bug.cgi?id=89778
+
+        Reviewed by Ryosuke Niwa.
+
+        Previously this test ran twice for each iteration, but this led to inconsistent repaints.
+        This change updates the test to only run once per iteration, and adds even more cubics
+        so that the test runs consistently in the 80ms range on my Linux desktop.
+
+        Performance results on my desktop:
+            RESULT SVG: SvgCubics= 80.5 ms
+            median= 82.0 ms, stdev= 3.04138126515 ms, min= 75.0 ms, max= 85.0 ms
+
+            RESULT SVG: SvgCubics= 80.1 ms
+            median= 81.0 ms, stdev= 4.27668095607 ms, min= 74.0 ms, max= 88.0 ms
+
+            RESULT SVG: SvgCubics= 81.45 ms
+            median= 83.0 ms, stdev= 4.01839520207 ms, min= 75.0 ms, max= 89.0 ms
+
+            RESULT SVG: SvgCubics= 78.9 ms
+            median= 80.0 ms, stdev= 4.75289385533 ms, min= 72.0 ms, max= 87.0 ms
+
+        * SVG/SvgCubics.html:
+
 2012-06-22  Ilya Tikhonovsky  <loislo@chromium.org>
 
         Web Inspector: partially instrument DOM Tree native memory.

diff --git a/PerformanceTests/SVG/SvgCubics.html b/PerformanceTests/SVG/SvgCubics.html
index 5509a54..1d4f409 100644 (file)
--- a/PerformanceTests/SVG/SvgCubics.html
+++ b/PerformanceTests/SVG/SvgCubics.html
@@ -785,6 +785,9 @@
             <use id='tiger3' xlink:href="#tiger"></use>
             <use id='tiger4' xlink:href="#tiger"></use>
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@@ -796,6 +799,26 @@
                 </textPath>
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dur='25s'/>
+            </path>
           </g>
         </svg>
       </div>
@@ -841,6 +864,15 @@
         tiger5.setAttribute('stroke-width', strokeWidth);
         tiger5.setAttribute('transform', 'translate(630,100)');
 
+        // spin three overlapping tigers.
+        var rad = 0.05 * t;
+        var tiger6 = document.getElementById('tiger6');
+        tiger6.setAttribute('transform', 'scale(0.5) translate(150,330) rotate(' + (rad * 180 / 3.14159) + ') translate(-50,-50)');
+        var tiger7 = document.getElementById('tiger7');
+        tiger7.setAttribute('transform', 'scale(0.5) translate(150,130) rotate(' + (rad * 180 / 3.14159) + ') translate(-50,-50)');
+        var tiger8 = document.getElementById('tiger8');
+        tiger8.setAttribute('transform', 'scale(0.5) translate(150,230) rotate(' + (-rad * 180 / 3.14159) + ') translate(-50,-50)');
+
         // move dots on a dune
         var dashOffset1 = 40 + 40 * Math.sin(0.05 * t);
         var dune1 = document.getElementById('dune1');
@@ -871,7 +903,7 @@
         // Move text on a path
         var textPath = document.getElementById('textPath');
         var text = '';
-        for (var i = 0; i < 13; i++)
+        for (var i = 0; i < 25; i++)
           text += ('text on a path! ' + t + '      ');
         textPath.textContent = text;
 
@@ -879,7 +911,7 @@
         document.getElementById('svg').offsetTop;
 
         t++;
-      }, 2, 20, function() {
+      }, 1, 20, function() {
         var wrapper = document.getElementById('wrapper');
         if (wrapper)
           wrapper.parentNode.removeChild(wrapper);