Move perfy stuff into Perf Diagnostics report aggregation.

lighthouse-core/audits/byte-efficiency/unused-css-rules.js

@@ -29,7 +29,7 @@ class UnusedCSSRules extends Audit {
     return {
       category: 'CSS',
       name: 'unused-css-rules',
-      description: 'Avoids loading unnecessary CSS',
+      description: 'Unused CSS rules',
       helpText: 'Remove unused rules from stylesheets to reduce unnecessary ' +
           'bytes consumed by network activity. ' +
           '[Learn more](https://developers.google.com/speed/docs/insights/OptimizeCSSDelivery)',

lighthouse-core/audits/byte-efficiency/uses-optimized-images.js

@@ -40,7 +40,7 @@ class UsesOptimizedImages extends Audit {
     return {
       category: 'Images',
       name: 'uses-optimized-images',
-      description: 'Avoids unoptimized images',
+      description: 'Unoptimized images',
       helpText: 'Images should be optimized to save network bytes. ' +
         'The following images could have smaller file sizes when compressed with ' +
         '[WebP](https://developers.google.com/speed/webp/) or JPEG at 80 quality. ' +

lighthouse-core/audits/byte-efficiency/uses-responsive-images.js

@@ -38,7 +38,7 @@ class UsesResponsiveImages extends Audit {
     return {
       category: 'Images',
       name: 'uses-responsive-images',
-      description: 'Avoids oversized images',
+      description: 'Oversized Images',
       helpText:
         'Image sizes served should be based on the device display size to save network bytes. ' +
         'Learn more about [responsive images](https://developers.google.com/web/fundamentals/design-and-ui/media/images) ' +

lighthouse-core/audits/dobetterweb/link-blocking-first-paint.js

@@ -34,7 +34,7 @@ class LinkBlockingFirstPaintAudit extends Audit {
     return {
       category: 'Performance',
       name: 'link-blocking-first-paint',
-      description: 'Avoids `<link>` that delay first paint',
+      description: 'Render-blocking Stylesheets',
       helpText: 'Link elements are blocking the first paint of your page. Consider ' +
           'inlining critical links and deferring non-critical ones. ' +
           '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/blocking-resources).',

lighthouse-core/audits/dobetterweb/script-blocking-first-paint.js

@@ -33,7 +33,7 @@ class ScriptBlockingFirstPaint extends Audit {
     return {
       category: 'Performance',
       name: 'script-blocking-first-paint',
-      description: 'Avoids `<script>` in head that delay first paint',
+      description: 'Render-blocking scripts',
       helpText: 'Script elements are blocking the first paint of your page. Consider inlining ' +
           'critical scripts and deferring non-critical ones. ' +
           '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/blocking-resources).',

lighthouse-core/config/default.json

@@ -279,22 +279,6 @@
           "weight": 1
         }
       }
-    }, {
-      "name": "Using bytes efficiently",
-      "audits": {
-        "unused-css-rules": {
-          "expectedValue": true,
-          "weight": 1
-        },
-        "uses-optimized-images": {
-          "expectedValue": true,
-          "weight": 1
-        },
-        "uses-responsive-images": {
-          "expectedValue": true,
-          "weight": 1
-        }
-      }
     }, {
       "name": "Using modern CSS features",
       "audits": {
@@ -322,14 +306,6 @@
           "expectedValue": true,
           "weight": 1
         },
-        "link-blocking-first-paint": {
-          "expectedValue": true,
-          "weight": 1
-        },
-        "script-blocking-first-paint": {
-          "expectedValue": true,
-          "weight": 1
-        },
         "external-anchors-use-rel-noopener": {
           "expectedValue": true,
           "weight": 1
@@ -401,20 +377,40 @@
       }
     }]
   }, {
-    "name": "Performance Metrics",
+    "name": "Performance",
     "description": "These encapsulate your app's performance.",
     "scored": false,
     "categorizable": false,
     "items": [{
       "audits": {
-        "dom-size": {
-          "expectedValue": 100,
+        "unused-css-rules": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "uses-optimized-images": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "uses-responsive-images": {
+          "expectedValue": true,
           "weight": 1
         },
         "critical-request-chains": {
           "expectedValue": true,
           "weight": 1
         },
+        "link-blocking-first-paint": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "script-blocking-first-paint": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "dom-size": {
+          "expectedValue": 100,
+          "weight": 1
+        },
         "user-timings": {
           "expectedValue": true,
           "weight": 1

lighthouse-core/config/perf.json

@@ -5,7 +5,8 @@
     "gatherers": [
       "url",
       "image-usage",
-      "content-width"
+      "content-width",
+      "dobetterweb/domstats"
     ]
   },
   {
@@ -31,18 +32,17 @@
     "byte-efficiency/unused-css-rules",
     "byte-efficiency/uses-optimized-images",
     "byte-efficiency/uses-responsive-images",
+    "dobetterweb/dom-size",
     "dobetterweb/link-blocking-first-paint",
     "dobetterweb/script-blocking-first-paint"
   ],
 
   "aggregations": [{
-    "name": "Perf metrics",
+    "name": "Performance metrics",
     "description": "",
-    "scored": true,
-    "categorizable": true,
+    "scored": false,
+    "categorizable": false,
     "items": [{
-      "name": "Page load performance is fast",
-      "description": "",
       "audits": {
         "first-meaningful-paint": {
           "expectedValue": 100,
@@ -69,13 +69,38 @@
     "categorizable": false,
     "items": [{
       "audits": {
-        "unused-css-rules": {},
-        "uses-optimized-images": {},
-        "uses-responsive-images": {},
-        "critical-request-chains": {},
-        "link-blocking-first-paint": {},
-        "script-blocking-first-paint": {},
-        "user-timings": {}
+        "unused-css-rules": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "uses-optimized-images": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "uses-responsive-images": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "critical-request-chains": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "link-blocking-first-paint": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "script-blocking-first-paint": {
+          "expectedValue": true,
+          "weight": 1
+        },
+        "dom-size": {
+          "expectedValue": 100,
+          "weight": 1
+        },
+        "user-timings": {
+          "expectedValue": true,
+          "weight": 1
+        }
       }
     }]
   }]

lighthouse-core/formatters/partials/table.html

@@ -2,7 +2,7 @@
 
 {{#if rows}}
 <details class="subitem__details">
-  <summary class="subitem__detail">More information</summary>
+  <summary class="subitem__detail">View details</summary>
   <table class="table_list {{#ifNotEq headings.length 2}}multicolumn{{/ifNotEq}}">
     <thead>
       <tr>