[gnome-shell] perf: Add metrics for different window configurations

[Owen Taylor <otaylor src gnome org>]

commit 239aa7b8d5765472d1c1582adca552331b5983b3
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Mar 8 18:54:23 2011 -0500

    perf: Add metrics for different window configurations
    
    Add metrics:
     overviewFps5Windows
     overviewFps10Windows
     overviewFps5Maximzed
     overviewFps10Maximized
     overviewFps5Alpha
     overviewFps10Alpha
    
    To have more numbers to show how performance varies with different
    numbers of windows and different types of windows (maximized,
    with an alpha channel.)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=644265

 js/perf/core.js |   61 +++++++++++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 53 insertions(+), 8 deletions(-)
---
diff --git a/js/perf/core.js b/js/perf/core.js
index 1bbeab7..3ed7924 100644
--- a/js/perf/core.js
+++ b/js/perf/core.js
@@ -21,6 +21,24 @@ let METRICS = {
     overviewFpsSubsequent:
     { description: "Frames rate when going to the overview, second time",
       units: "frames / s" },
+    overviewFps5Windows:
+    { description: "Frames rate when going to the overview, 5 windows open",
+      units: "frames / s" },
+    overviewFps10Windows:
+    { description: "Frames rate when going to the overview, 10 windows open",
+      units: "frames / s" },
+    overviewFps5Maximized:
+    { description: "Frames rate when going to the overview, 5 maximized windows open",
+      units: "frames / s" },
+    overviewFps10Maximized:
+    { description: "Frames rate when going to the overview, 10 maximized windows open",
+      units: "frames / s" },
+    overviewFps5Alpha:
+    { description: "Frames rate when going to the overview, 5 alpha-transparent windows open",
+      units: "frames / s" },
+    overviewFps10Alpha:
+    { description: "Frames rate when going to the overview, 10 alpha-transparent windows open",
+      units: "frames / s" },
     usedAfterOverview:
     { description: "Malloc'ed bytes after the overview is shown once",
       units: "B" },
@@ -29,6 +47,16 @@ let METRICS = {
       units: "B" }
 };
 
+let WINDOW_CONFIGS = [
+    { width: 640, height: 480, alpha: false, maximized: false, count: 1,  metric: 'overviewFpsSubsequent' },
+    { width: 640, height: 480, alpha: false, maximized: false, count: 5,  metric: 'overviewFps5Windows'  },
+    { width: 640, height: 480, alpha: false, maximized: false, count: 10, metric: 'overviewFps10Windows'  },
+    { width: 640, height: 480, alpha: false, maximized: true,  count: 5,  metric: 'overviewFps5Maximized' },
+    { width: 640, height: 480, alpha: false, maximized: true,  count: 10, metric: 'overviewFps10Maximized' },
+    { width: 640, height: 480, alpha: true,  maximized: false, count: 5,  metric: 'overviewFps5Alpha' },
+    { width: 640, height: 480, alpha: true,  maximized: false, count: 10, metric: 'overviewFps10Alpha' }
+];
+
 function run() {
     Scripting.defineScriptEvent("overviewShowStart", "Starting to show the overview");
     Scripting.defineScriptEvent("overviewShowDone", "Overview finished showing");
@@ -38,13 +66,24 @@ function run() {
                               Scripting.scriptEvent('overviewShowDone');
                           });
 
-    Scripting.destroyTestWindows();
-    Scripting.createTestWindow(640, 480, false, false);
-    Scripting.waitTestWindows();
-
     yield Scripting.sleep(1000);
-    yield Scripting.waitLeisure();
-    for (let i = 0; i < 2; i++) {
+
+    for (let i = 0; i < 2 * WINDOW_CONFIGS.length; i++) {
+        // We go to the overview twice for each configuration; the first time
+        // to calculate the mipmaps for the windows, the second time to get
+        // a clean set of numbers.
+        if ((i % 2) == 0) {
+            let config = WINDOW_CONFIGS[i / 2];
+            yield Scripting.destroyTestWindows();
+
+            for (let k = 0; k < config.count; k++)
+                yield Scripting.createTestWindow(config.width, config.height, config.alpha, config.maximized);
+
+            yield Scripting.waitTestWindows();
+            yield Scripting.sleep(1000);
+            yield Scripting.waitLeisure();
+        }
+
         Scripting.scriptEvent('overviewShowStart');
         Main.overview.show();
 
@@ -117,9 +156,15 @@ function _frameDone(time) {
         if (overviewShowCount == 1) {
             METRICS.overviewLatencyFirst.value = overviewLatency;
             METRICS.overviewFpsFirst.value = fps;
-        } else {
+        } else if (overviewShowCount == 2) {
             METRICS.overviewLatencySubsequent.value = overviewLatency;
-            METRICS.overviewFpsSubsequent.value = fps;
+        }
+
+        // Other than overviewFpsFirst, we collect FPS metrics the second
+        // we show each window configuration. overviewShowCount is 1,2,3...
+        if (overviewShowCount % 2 == 0) {
+            let config = WINDOW_CONFIGS[(overviewShowCount / 2) - 1];
+            METRICS[config.metric].value = fps;
         }
     }
 }