content/child/content_child_helpers.cc

   1 // Copyright 2014 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 "content/child/content_child_helpers.h"
   6
   7 #if defined(OS_LINUX)
   8 #include <malloc.h>
   9 #endif
  10
  11 #include "base/logging.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/process/process_metrics.h"
  14 #include "v8/include/v8.h"
  15
  16 namespace content {
  17
  18 #if defined(OS_LINUX) || defined(OS_ANDROID)
  19 size_t GetMemoryUsageKB() {
  20   struct mallinfo minfo = mallinfo();
  21   uint64_t mem_usage =
  22 #if defined(USE_TCMALLOC)
  23       minfo.uordblks
  24 #else
  25       (minfo.hblkhd + minfo.arena)
  26 #endif
  27       >> 10;
  28
  29   v8::HeapStatistics stat;
  30   // TODO(svenpanne) The call below doesn't take web workers into account, this
  31   // has to be done manually by iterating over all Isolates involved.
  32   v8::Isolate* isolate = v8::Isolate::GetCurrent();
  33   if (isolate)
  34     isolate->GetHeapStatistics(&stat);
  35   return mem_usage + (static_cast<uint64_t>(stat.total_heap_size()) >> 10);
  36 }
  37 #elif defined(OS_MACOSX)
  38 size_t GetMemoryUsageKB() {
  39   scoped_ptr<base::ProcessMetrics> process_metrics(
  40       // The default port provider is sufficient to get data for the current
  41       // process.
  42       base::ProcessMetrics::CreateProcessMetrics(
  43           base::GetCurrentProcessHandle(), NULL));
  44   return process_metrics->GetWorkingSetSize() >> 10;
  45 }
  46 #else
  47 size_t GetMemoryUsageKB() {
  48   scoped_ptr<base::ProcessMetrics> process_metrics(
  49       base::ProcessMetrics::CreateProcessMetrics(
  50           base::GetCurrentProcessHandle()));
  51   return process_metrics->GetPagefileUsage() >> 10;
  52 }
  53 #endif
  54
  55 }  // namespace content