Removed performance bar labels for total rendering

app/assets/javascripts/performance_bar/index.js

@@ -70,9 +70,9 @@ export default ({ container }) =>
 
           let durationString = '';
           if (navigationEntries.length > 0) {
-            durationString = `BE ${this.formatMs(navigationEntries[0].responseEnd)} / `;
-            durationString += `FCP ${this.formatMs(paintEntries[1].startTime)} / `;
-            durationString += `DOM ${this.formatMs(navigationEntries[0].domContentLoadedEventEnd)}`;
+            durationString = `${Math.round(navigationEntries[0].responseEnd)} | `;
+            durationString += `${Math.round(paintEntries[1].startTime)} | `;
+            durationString += ` ${Math.round(navigationEntries[0].domContentLoadedEventEnd)}`;
           }
 
           let newEntries = resourceEntries.map(this.transformResourceEntry);
@@ -105,10 +105,6 @@ export default ({ container }) =>
           size: entry.transferSize ? `${nf.format(entry.transferSize)} bytes` : 'cached',
         };
       },
-      formatMs(msValue) {
-        const nf = new Intl.NumberFormat();
-        return `${nf.format(Math.round(msValue))}ms`;
-      },
     },
     render(createElement) {
       return createElement('performance-bar-app', {

doc/administration/monitoring/performance/performance_bar.md

@@ -16,10 +16,10 @@ It allows you to see (from left to right):
   ![Rugged profiling using the Performance Bar](img/performance_bar_rugged_calls.png)
 - time taken and number of Redis calls; click through for details of these calls
   ![Redis profiling using the Performance Bar](img/performance_bar_redis_calls.png)
-- total load timings of the page; click through for details of these calls
-  - BE = Backend - Time that the actual base page took to load
-  - FCP = [First Contentful Paint](https://developers.google.com/web/tools/lighthouse/audits/first-contentful-paint) - Time until something was visible to the user
-  - DOM = [DomContentLoaded](https://developers.google.com/web/fundamentals/performance/critical-rendering-path/measure-crp) Event
+- total load timings of the page; click through for details of these calls. Values in the following order:
+  - Backend - Time that the actual base page took to load
+  - [First Contentful Paint](https://developers.google.com/web/tools/lighthouse/audits/first-contentful-paint) - Time until something was visible to the user
+  - [DomContentLoaded](https://developers.google.com/web/fundamentals/performance/critical-rendering-path/measure-crp) Event
   - Number of Requests that the page loaded
   ![Frontend requests using the Performance Bar](img/performance_bar_frontend.png)
 - a link to add a request's details to the performance bar; the request can be