Add renderer memory metrics

chrome/renderer/chrome_render_frame_observer.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_render_frame_observer.h"
 
 #include <stddef.h>
 #include <string.h>
 
 #include <limits>
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_isolated_world_ids.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/prerender_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
 #include "components/translate/content/renderer/translate_helper.h"
 #include "content/public/renderer/render_frame.h"
+#include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "extensions/common/constants.h"
 #include "printing/features/features.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/WebKit/public/platform/WebImage.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElement.h"
 #include "third_party/WebKit/public/web/WebFrameContentDumper.h"
@@ skipping 204 matching lines @@
   WebLocalFrame* frame = render_frame()->GetWebFrame();
   // Don't do anything for subframes.
   if (frame->parent())
     return;
 
   GURL osdd_url = frame->document().openSearchDescriptionURL();
   if (!osdd_url.is_empty()) {
     Send(new ChromeViewHostMsg_PageHasOSDD(
         routing_id(), frame->document().url(), osdd_url));
   }
+
+  content::RendererMemoryMetrics memory_metrics;
+  content::RenderThread::Get()->GetRendererMemoryMetrics(&memory_metrics);

[haraken, 2016/12/12 11:32:27]

Can we measure # of tabs in this renderer at this point?

If there're many cases that this renderer is shared by multiple tabs, we'll end
up with collecting "meaningless" values -- we need to think about another way to
make the measurement a more meaningful thing.

[keishi, 2017/01/06 11:08:27]

Added Memory.Experimental.Renderer.*.TotalAllocatedPerRenderViewMB which divides
the memory size with the # of RenderViews.

+  UMA_HISTOGRAM_MEMORY_KB("Renderer.Memory.DidFinishLoad.PartitionAllocKB",
+                          memory_metrics.partition_alloc_kb);
+  UMA_HISTOGRAM_MEMORY_KB("Renderer.Memory.DidFinishLoad.BlinkGCKB",
+                          memory_metrics.blink_gc_kb);
+  UMA_HISTOGRAM_MEMORY_MB("Renderer.Memory.DidFinishLoad.MallocMB",
+                          memory_metrics.malloc_mb);
+  UMA_HISTOGRAM_MEMORY_KB("Renderer.Memory.DidFinishLoad.DiscardableKB",
+                          memory_metrics.discardable_kb);
+  UMA_HISTOGRAM_MEMORY_MB("Renderer.Memory.DidFinishLoad.V8MainThreadIsolateMB",
+                          memory_metrics.v8_main_thread_isolate_mb);
+  UMA_HISTOGRAM_MEMORY_MB("Renderer.Memory.DidFinishLoad.TotalAllocatedMB",
+                          memory_metrics.total_allocated_mb);
+  UMA_HISTOGRAM_MEMORY_MB(
+      "Renderer.Memory.DidFinishLoad.NonDiscardableTotalAllocatedMB",
+      memory_metrics.non_discardable_total_allocated_mb);
 }
 
 void ChromeRenderFrameObserver::DidStartProvisionalLoad() {
   // Let translate_helper do any preparatory work for loading a URL.
   if (!translate_helper_)
     return;
 
   translate_helper_->PrepareForUrl(
       render_frame()->GetWebFrame()->document().url());
 }
@@ skipping 76 matching lines @@
       CapturePageText(FINAL_CAPTURE);
       break;
     default:
       break;
   }
 }
 
 void ChromeRenderFrameObserver::OnDestruct() {
   delete this;
 }