[gnome-shell] Add a new hwtest script

[Owen Taylor <otaylor src gnome org>]

commit 4e56af39daac3acec0907ca130e5d244aaedc9c4
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Thu Jun 5 15:18:25 2014 -0400

    Add a new hwtest script
    
    Add a performance test script that is used by the GNOME Hardware Testing
    Project to measure metrics to be reported to perf.gnome.org.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732350

 js/js-resources.gresource.xml |    1 +
 js/perf/hwtest.js             |  310 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 311 insertions(+), 0 deletions(-)
---
diff --git a/js/js-resources.gresource.xml b/js/js-resources.gresource.xml
index 32df2dd..ffef871 100644
--- a/js/js-resources.gresource.xml
+++ b/js/js-resources.gresource.xml
@@ -25,6 +25,7 @@
     <file>misc/util.js</file>
 
     <file>perf/core.js</file>
+    <file>perf/hwtest.js</file>
 
     <file>portalHelper/main.js</file>
 
diff --git a/js/perf/hwtest.js b/js/perf/hwtest.js
new file mode 100644
index 0000000..1f0b181
--- /dev/null
+++ b/js/perf/hwtest.js
@@ -0,0 +1,310 @@
+const Clutter = imports.gi.Clutter;
+const Gio = imports.gi.Gio;
+const Gtk = imports.gi.Gtk;
+const Meta = imports.gi.Meta;
+const Main = imports.ui.main;
+const Scripting = imports.ui.scripting;
+const Shell = imports.gi.Shell;
+
+let METRICS = {
+    timeToDesktop:
+    { description: "Time from starting graphical.target to desktop showing",
+      units: "us" },
+
+    overviewShowTime:
+    { description: "Time to switch to overview view, first time",
+      units: "us" },
+
+    applicationsShowTime:
+    { description: "Time to switch to applications view, first time",
+      units: "us" },
+
+    mainViewRedrawTime:
+    { description: "Time to redraw the main view, full screen",
+      units: "us" },
+
+    overviewRedrawTime:
+    { description: "Time to redraw the overview, full screen, 5 windows",
+      units: "us" },
+
+    applicationRedrawTime:
+    { description: "Time to redraw frame with a maximized application update",
+      units: "us" },
+
+    geditStartTime:
+    { description: "Time from gedit launch to window drawn",
+      units: "us" },
+}
+
+function waitAndDraw(milliseconds) {
+    let cb;
+
+    let timeline = new Clutter.Timeline({ duration: milliseconds });
+    timeline.start();
+
+    timeline.connect('new-frame',
+        function(timeline, frame) {
+            global.stage.queue_redraw();
+        });
+
+    timeline.connect('completed',
+        function() {
+            timeline.stop();
+            if (cb)
+                cb();
+        });
+
+    return function(callback) {
+        cb = callback;
+    };
+}
+
+function waitSignal(object, signal) {
+    let cb;
+
+    let id = object.connect(signal, function() {
+        object.disconnect(id);
+        if (cb)
+            cb();
+    });
+
+    return function(callback) {
+        cb = callback;
+    };
+}
+
+function extractBootTimestamp() {
+    let sp = Gio.Subprocess.new(['journalctl', '-b',
+                                 'MESSAGE_ID=7d4958e842da4a758f6c1cdc7b36dcc5',
+                                 'UNIT=graphical.target',
+                                 '-o',
+                                 'json-pretty'],
+                                Gio.SubprocessFlags.STDOUT_PIPE);
+    let result = null;
+
+    let datastream = Gio.DataInputStream.new(sp.get_stdout_pipe());
+    while (true) {
+        let [line, length] = datastream.read_line_utf8(null);
+        if (line === null)
+            break;
+
+        let m = /.*"__MONOTONIC_TIMESTAMP".*"([0-9]+)"/.exec(line);
+        if (m) {
+            result = Number(m[1]);
+        }
+    }
+    datastream.close(null);
+    return result;
+}
+
+function run() {
+    Scripting.defineScriptEvent("desktopShown", "Finished initial animation");
+    Scripting.defineScriptEvent("overviewShowStart", "Starting to show the overview");
+    Scripting.defineScriptEvent("overviewShowDone", "Overview finished showing");
+    Scripting.defineScriptEvent("applicationsShowStart", "Starting to switch to applications view");
+    Scripting.defineScriptEvent("applicationsShowDone", "Done switching to applications view");
+    Scripting.defineScriptEvent("mainViewDrawStart", "Drawing main view");
+    Scripting.defineScriptEvent("mainViewDrawDone", "Ending timing main view drawing");
+    Scripting.defineScriptEvent("overviewDrawStart", "Drawing overview");
+    Scripting.defineScriptEvent("overviewDrawDone", "Ending timing overview drawing");
+    Scripting.defineScriptEvent("redrawTestStart", "Drawing application window");
+    Scripting.defineScriptEvent("redrawTestDone", "Ending timing application window drawing");
+    Scripting.defineScriptEvent("collectTimings", "Accumulate frame timings from redraw tests");
+    Scripting.defineScriptEvent("geditLaunch", "gedit application launch");
+    Scripting.defineScriptEvent("geditFirstFrame", "first frame of gedit window drawn");
+
+    yield Scripting.waitLeisure();
+    Scripting.scriptEvent('desktopShown');
+
+    Gtk.Settings.get_default().gtk_enable_animations = false;
+
+    Scripting.scriptEvent('overviewShowStart');
+    Main.overview.show();
+    yield Scripting.waitLeisure();
+    Scripting.scriptEvent('overviewShowDone');
+
+    yield Scripting.sleep(1000);
+
+    Scripting.scriptEvent('applicationsShowStart');
+    Main.overview._dash.showAppsButton.checked = true;
+
+    yield Scripting.waitLeisure();
+    Scripting.scriptEvent('applicationsShowDone');
+
+    yield Scripting.sleep(1000);
+
+    Main.overview.hide();
+    yield Scripting.waitLeisure();
+
+    ////////////////////////////////////////
+    // Tests of redraw speed
+    ////////////////////////////////////////
+
+    global.frame_timestamps = true;
+    global.frame_finish_timestamp = true;
+
+    for (let k = 0; k < 5; k++)
+        yield Scripting.createTestWindow(640, 480,
+                                         { maximized: true });
+    yield Scripting.waitTestWindows();
+
+    yield Scripting.sleep(1000);
+
+    Scripting.scriptEvent('mainViewDrawStart');
+    yield waitAndDraw(1000);
+    Scripting.scriptEvent('mainViewDrawDone');
+
+    Main.overview.show();
+    Scripting.waitLeisure();
+
+    yield Scripting.sleep(1500);
+
+    Scripting.scriptEvent('overviewDrawStart');
+    yield waitAndDraw(1000);
+    Scripting.scriptEvent('overviewDrawDone');
+
+    yield Scripting.destroyTestWindows();
+    Main.overview.hide();
+
+    yield Scripting.createTestWindow(640, 480,
+                                     { maximized: true,
+                                       redraws: true});
+    yield Scripting.waitTestWindows();
+
+    yield Scripting.sleep(1000);
+
+    Scripting.scriptEvent('redrawTestStart');
+    yield Scripting.sleep(1000);
+    Scripting.scriptEvent('redrawTestDone');
+
+    yield Scripting.sleep(1000);
+    Scripting.scriptEvent('collectTimings');
+
+    yield Scripting.destroyTestWindows();
+
+    global.frame_timestamps = false;
+    global.frame_finish_timestamp = false;
+
+    yield Scripting.sleep(1000);
+
+    ////////////////////////////////////////
+
+    let appSys = Shell.AppSystem.get_default();
+    let app = appSys.lookup_app('gedit.desktop');
+
+    Scripting.scriptEvent('geditLaunch');
+    app.activate();
+
+    let windows = app.get_windows();
+    if (windows.length > 0)
+        throw new Error('gedit was already running');
+
+    while (windows.length == 0) {
+        yield waitSignal(global.display, 'window-created');
+        windows = app.get_windows();
+    }
+
+    let actor = windows[0].get_compositor_private();
+    yield waitSignal(actor, 'first-frame');
+    Scripting.scriptEvent('geditFirstFrame');
+
+    yield Scripting.sleep(1000);
+
+    windows[0].delete(global.get_current_time());
+
+    yield Scripting.sleep(1000);
+
+    Gtk.Settings.get_default().gtk_enable_animations = true;
+}
+
+let overviewShowStart;
+let applicationsShowStart;
+let stagePaintStart;
+let redrawTiming;
+let redrawTimes = {};
+let geditLaunchTime;
+
+function script_desktopShown(time) {
+    let bootTimestamp = extractBootTimestamp();
+    METRICS.timeToDesktop.value = time - bootTimestamp;
+}
+
+function script_overviewShowStart(time) {
+    overviewShowStart = time;
+}
+
+function script_overviewShowDone(time) {
+    METRICS.overviewShowTime.value = time - overviewShowStart;
+}
+
+function script_applicationsShowStart(time) {
+    applicationsShowStart = time;
+}
+
+function script_applicationsShowDone(time) {
+    METRICS.applicationsShowTime.value = time - applicationsShowStart;
+}
+
+function script_mainViewDrawStart(time) {
+    redrawTiming = 'mainView';
+}
+
+function script_mainViewDrawDone(time) {
+    redrawTiming = null;
+}
+
+function script_overviewDrawStart(time) {
+    redrawTiming = 'overview';
+}
+
+function script_overviewDrawDone(time) {
+    redrawTiming = null;
+}
+
+function script_redrawTestStart(time) {
+    redrawTiming = 'application';
+}
+
+function script_redrawTestDone(time) {
+    redrawTiming = null;
+}
+
+function script_collectTimings(time) {
+    for (let timing in redrawTimes) {
+        let times = redrawTimes[timing];
+        times.sort();
+
+        let len = times.length;
+        let median;
+
+        if (len == 0)
+            median = -1;
+        else if (len % 2 == 1)
+            median = times[(len - 1)/ 2];
+        else
+            median = Math.round((times[len / 2 - 1] + times[len / 2]) / 2);
+
+        METRICS[timing + 'RedrawTime'].value = median;
+    }
+}
+
+function script_geditLaunch(time) {
+    geditLaunchTime = time;
+}
+
+function script_geditFirstFrame(time) {
+    METRICS.geditStartTime.value = time - geditLaunchTime;
+}
+
+function clutter_stagePaintStart(time) {
+    stagePaintStart = time;
+}
+
+function clutter_paintCompletedTimestamp(time) {
+    if (redrawTiming != null && stagePaintStart != null) {
+        if (!(redrawTiming in redrawTimes))
+            redrawTimes[redrawTiming] = [];
+        redrawTimes[redrawTiming].push(time - stagePaintStart);
+    }
+    stagePaintStart = null;
+}