components/web_cache/renderer/web_cache_memory_dump_provider.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/web_cache/renderer/web_cache_memory_dump_provider.h"
   6
   7 #include "base/trace_event/memory_allocator_dump.h"
   8 #include "base/trace_event/memory_dump_manager.h"
   9 #include "base/trace_event/process_memory_dump.h"
  10 #include "third_party/WebKit/public/web/WebCache.h"
  11
  12 namespace web_cache {
  13 namespace {
  14
  15 base::LazyInstance<WebCacheMemoryDumpProvider>::Leaky g_wcmdp_instance =
  16     LAZY_INSTANCE_INITIALIZER;
  17
  18 void DumpResourceStats(const blink::WebCache::ResourceTypeStat& resource_stat,
  19                        const std::string& resource_name,
  20                        base::trace_event::ProcessMemoryDump* pmd) {
  21   base::trace_event::MemoryAllocatorDump* allocator_dump =
  22       pmd->CreateAllocatorDump(resource_name);
  23   allocator_dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
  24                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  25                             resource_stat.size);
  26   allocator_dump->AddScalar(
  27       base::trace_event::MemoryAllocatorDump::kNameObjectsCount,
  28       base::trace_event::MemoryAllocatorDump::kUnitsObjects,
  29       resource_stat.count);
  30   allocator_dump->AddScalar("live_size",
  31                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  32                             resource_stat.liveSize);
  33   allocator_dump->AddScalar("decoded_size",
  34                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  35                             resource_stat.decodedSize);
  36   allocator_dump->AddScalar("purged_size",
  37                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  38                             resource_stat.purgedSize);
  39   allocator_dump->AddScalar("purgeable_size",
  40                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  41                             resource_stat.purgeableSize);
  42 }
  43
  44 }  // namespace
  45
  46 // static
  47 WebCacheMemoryDumpProvider* WebCacheMemoryDumpProvider::GetInstance() {
  48   return g_wcmdp_instance.Pointer();
  49 }
  50
  51 WebCacheMemoryDumpProvider::WebCacheMemoryDumpProvider() {}
  52
  53 WebCacheMemoryDumpProvider::~WebCacheMemoryDumpProvider() {}
  54
  55 bool WebCacheMemoryDumpProvider::OnMemoryDump(
  56     const base::trace_event::MemoryDumpArgs& args,
  57     base::trace_event::ProcessMemoryDump* pmd) {
  58   blink::WebCache::UsageStats memory_stats;
  59   blink::WebCache::getUsageStats(&memory_stats);
  60
  61   const std::string dump_name("web_cache");
  62   base::trace_event::MemoryAllocatorDump* allocator_dump =
  63       pmd->CreateAllocatorDump(dump_name);
  64
  65   allocator_dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
  66                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  67                             memory_stats.liveSize + memory_stats.deadSize);
  68   allocator_dump->AddScalar("live_size",
  69                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  70                             memory_stats.liveSize);
  71   allocator_dump->AddScalar("dead_size",
  72                             base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  73                             memory_stats.deadSize);
  74
  75   blink::WebCache::ResourceTypeStats resource_stats;
  76   blink::WebCache::getResourceTypeStats(&resource_stats);
  77   DumpResourceStats(resource_stats.images, dump_name + "/images", pmd);
  78   DumpResourceStats(resource_stats.cssStyleSheets,
  79                     dump_name + "/css_style_sheets", pmd);
  80   DumpResourceStats(resource_stats.scripts, dump_name + "/scripts", pmd);
  81   DumpResourceStats(resource_stats.xslStyleSheets,
  82                     dump_name + "/xsl_style_sheets", pmd);
  83   DumpResourceStats(resource_stats.fonts, dump_name + "/fonts", pmd);
  84   DumpResourceStats(resource_stats.other, dump_name + "/other", pmd);
  85
  86   return true;
  87 }
  88
  89 }  // namespace web_cache