tree c2d2a3884acff00ff9e3097b3de570a5159a44ce
parent 53f9d1320983a507933b0b40689a70b5704b2650
author jonlee@apple.com <jonlee@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1455132128 +0000
committer jonlee@apple.com <jonlee@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1455132128 +0000

Add a ramp controller
https://bugs.webkit.org/show_bug.cgi?id=154028

Provisionally reviewed by Said Abou-Hallawa.

Enhance the graph to include a complexity-fps graph, in addition
to the time graph.

* Animometer/developer.html: Add a ramp option.
* Animometer/resources/debug-runner/animometer.css: Update the style.
* Animometer/resources/strings.js: Flatten the Strings.text constants.
* Animometer/resources/debug-runner/animometer.js:
(ResultsTable.call._addGraphButton): Refactor.
(ResultsTable.call._addTest): Add regression data.
(benchmarkController): Add a form that allows the user to switch between the two forms,
Add a form that allows the user to toggle different data. Hide certain header columns
depending on the selected controller.
* Animometer/resources/debug-runner/graph.js: Add the complexity regressions.
* Animometer/resources/debug-runner/tests.js: Add headers for the ramp results.
* Animometer/resources/runner/animometer.js:
(ResultsTable): If a header is disabled don't include them in _flattenedHeaders.
* Animometer/tests/resources/main.js:
(Controller): Allow options to specify the capacity for sample arrays.
(Regression): A piecewise regression that tries to fit a slope and a flat profile.
(_calculateRegression): Options can fix the slope and bias when calculating the minimal
error. Sweep across the samples in time (which could be backward depending on the controller)
and calculate the intersection point.
(RampController): This controller assumes that the target frame rate is below
58 FPS. It runs in two stages. The first stage quickly determines the order of
magnitude of objects needed to stress the system by the setting the complexity
to increasingly difficult tiers. Perform a series of ramps descending from a
high-water mark of complexity. The complexity needed to reach the target frame
length is done by performing a piecewise regression on each ramp, and track a
running average of these values. For the next ramp, make that running average
the center of the ramp. With a minimum complexity of 0, the high-water mark is
twice that average. The score is based on the highest complexity that can
reach 60 fps.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@196372 268f45cc-cd09-0410-ab3c-d52691b4dbfc