perf: Add metrics for switching to the applications view

Measure how long it takes to switch from the workspaces view to the
windows view the first time and the second time.

https://bugzilla.gnome.org/show_bug.cgi?id=644266

diff --git a/js/perf/core.js b/js/perf/core.js
index 3ed7924f8585746f45c60ab4a56e5c4bf69e241f..7d141a2d1ea611a2403321c1cf6ece424713741c 100644 (file)
--- a/js/perf/core.js
+++ b/js/perf/core.js
@@ -44,7 +44,13 @@ let METRICS = {
       units: "B" },
     leakedAfterOverview:
     { description: "Additional malloc'ed bytes the second time the overview is shown",
-      units: "B" }
+      units: "B" },
+    applicationsShowTimeFirst:
+    { description: "Time to switch to applications view, first time",
+      units: "us" },
+    applicationsShowTimeSubsequent:
+    { description: "Time to switch to applications view, second time",
+      units: "us"}
 };
 
 let WINDOW_CONFIGS = [
@@ -61,6 +67,8 @@ function run() {
     Scripting.defineScriptEvent("overviewShowStart", "Starting to show the overview");
     Scripting.defineScriptEvent("overviewShowDone", "Overview finished showing");
     Scripting.defineScriptEvent("afterShowHide", "After a show/hide cycle for the overview");
+    Scripting.defineScriptEvent("applicationsShowStart", "Starting to switch to applications view");
+    Scripting.defineScriptEvent("applicationsShowDone", "Done switching to applications view");
 
     Main.overview.connect('shown', function() {
                               Scripting.scriptEvent('overviewShowDone');
@@ -96,6 +104,21 @@ function run() {
         Scripting.collectStatistics();
         Scripting.scriptEvent('afterShowHide');
     }
+
+    yield Scripting.destroyTestWindows();
+    yield Scripting.sleep(1000);
+
+    Main.overview.show();
+    yield Scripting.waitLeisure();
+
+    for (let i = 0; i < 2; i++) {
+        Scripting.scriptEvent('applicationsShowStart');
+        Main.overview.viewSelector.switchTab('applications');
+        yield Scripting.waitLeisure();
+        Scripting.scriptEvent('applicationsShowDone');
+        Main.overview.viewSelector.switchTab('windows');
+        yield Scripting.waitLeisure();
+    }
 }
 
 let showingOverview = false;
@@ -107,6 +130,8 @@ let mallocUsedSize = 0;
 let overviewShowCount = 0;
 let firstOverviewUsedSize;
 let haveSwapComplete = false;
+let applicationsShowStart;
+let applicationsShowCount = 0;
 
 function script_overviewShowStart(time) {
     showingOverview = true;
@@ -122,6 +147,18 @@ function script_overviewShowDone(time) {
     finishedShowingOverview = true;
 }
 
+function script_applicationsShowStart(time) {
+    applicationsShowStart = time;
+}
+
+function script_applicationsShowDone(time) {
+    applicationsShowCount++;
+    if (applicationsShowCount == 1)
+        METRICS.applicationsShowTimeFirst.value = time - applicationsShowStart;
+    else
+        METRICS.applicationsShowTimeSubsequent.value = time - applicationsShowStart;
+}
+
 function script_afterShowHide(time) {
     if (overviewShowCount == 1) {
         METRICS.usedAfterOverview.value = mallocUsedSize;