Move memory histograms generation to MetricsMemoryDetails.

chrome/browser/memory_details.cc

Index: chrome/browser/memory_details.cc
diff --git a/chrome/browser/memory_details.cc b/chrome/browser/memory_details.cc
index b2d22fbb67c4f0c17a20b5cabb9d7f39bd899dc9..9d77541804fe59ddcf08230bf2f33632973bad3b 100644
--- a/chrome/browser/memory_details.cc
+++ b/chrome/browser/memory_details.cc
@@ -4,6 +4,9 @@
 
 #include "chrome/browser/memory_details.h"
 
+#include <algorithm>
+#include <set>
+
 #include "base/bind.h"
 #include "base/file_version_info.h"
 #include "base/metrics/histogram.h"
@@ -114,41 +117,6 @@ ProcessData& ProcessData::operator=(const ProcessData& rhs) {
   return *this;
 }
 
-MemoryGrowthTracker::MemoryGrowthTracker() {}
-
-MemoryGrowthTracker::~MemoryGrowthTracker() {}
-
-bool MemoryGrowthTracker::UpdateSample(
-    base::ProcessId pid,
-    int sample,
-    int* diff) {
-  // |sample| is memory usage in kB.
-  const base::TimeTicks current_time = base::TimeTicks::Now();
-  std::map<base::ProcessId, int>::iterator found_size = memory_sizes_.find(pid);
-  if (found_size != memory_sizes_.end()) {
-    const int last_size = found_size->second;
-    std::map<base::ProcessId, base::TimeTicks>::iterator found_time =
-        times_.find(pid);
-    const base::TimeTicks last_time = found_time->second;
-    if (last_time < (current_time - base::TimeDelta::FromMinutes(30))) {
-      // Note that it is undefined how division of a negative integer gets
-      // rounded. |*diff| may have a difference of 1 from the correct number
-      // if |sample| < |last_size|. We ignore it as 1 is small enough.
-      *diff = ((sample - last_size) * 30 /
-               (current_time - last_time).InMinutes());
-      found_size->second = sample;
-      found_time->second = current_time;
-      return true;
-    }
-    // Skip if a last record is found less than 30 minutes ago.
-  } else {
-    // Not reporting if it's the first record for |pid|.
-    times_[pid] = current_time;
-    memory_sizes_[pid] = sample;
-  }
-  return false;
-}
-
 // About threading:
 //
 // This operation will hit no fewer than 3 threads.
@@ -161,11 +129,10 @@ bool MemoryGrowthTracker::UpdateSample(
 // one task run for that long on the UI or IO threads.  So, we run the
 // expensive parts of this operation over on the file thread.
 //
-void MemoryDetails::StartFetch(UserMetricsMode user_metrics_mode) {
+void MemoryDetails::StartFetch() {
   // This might get called from the UI or FILE threads, but should not be
   // getting called from the IO thread.
   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
-  user_metrics_mode_ = user_metrics_mode;
 
   // In order to process this request, we need to use the plugin information.
   // However, plugin process information is only available from the IO thread.
@@ -212,11 +179,6 @@ std::string MemoryDetails::ToLogString() {
   return log;
 }
 
-void MemoryDetails::SetMemoryGrowthTracker(
-    MemoryGrowthTracker* memory_growth_tracker) {
-  memory_growth_tracker_ = memory_growth_tracker;
-}
-
 void MemoryDetails::CollectChildInfoOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
@@ -407,243 +369,5 @@ void MemoryDetails::CollectChildInfoOnUIThread() {
     }
   }
 
-  if (user_metrics_mode_ == UPDATE_USER_METRICS)
-    UpdateHistograms();
-
   OnDetailsAvailable();
 }
-
-void MemoryDetails::UpdateHistograms() {
-  // Reports a set of memory metrics to UMA.
-  // Memory is measured in KB.
-
-  const ProcessData& browser = *ChromeBrowser();
-  size_t aggregate_memory = 0;
-  int chrome_count = 0;
-  int extension_count = 0;
-  int plugin_count = 0;
-  int pepper_plugin_count = 0;
-  int pepper_plugin_broker_count = 0;
-  int renderer_count = 0;
-  int other_count = 0;
-  int worker_count = 0;
-  int process_limit = content::RenderProcessHost::GetMaxRendererProcessCount();
-  for (size_t index = 0; index < browser.processes.size(); index++) {
-    int sample = static_cast<int>(browser.processes[index].working_set.priv);
-    aggregate_memory += sample;
-    switch (browser.processes[index].process_type) {
-      case content::PROCESS_TYPE_BROWSER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Browser", sample);
-        continue;
-      case content::PROCESS_TYPE_RENDERER: {
-        ProcessMemoryInformation::RendererProcessType renderer_type =
-            browser.processes[index].renderer_type;
-        switch (renderer_type) {
-          case ProcessMemoryInformation::RENDERER_EXTENSION:
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Extension", sample);
-            extension_count++;
-            continue;
-          case ProcessMemoryInformation::RENDERER_CHROME:
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Chrome", sample);
-            chrome_count++;
-            continue;
-          case ProcessMemoryInformation::RENDERER_UNKNOWN:
-            NOTREACHED() << "Unknown renderer process type.";
-            continue;
-          case ProcessMemoryInformation::RENDERER_NORMAL:
-          default:
-            // TODO(erikkay): Should we bother splitting out the other subtypes?
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Renderer", sample);
-            int diff;
-            if (memory_growth_tracker_ &&
-                memory_growth_tracker_->UpdateSample(
-                    browser.processes[index].pid, sample, &diff)) {
-              if (diff < 0)
-                UMA_HISTOGRAM_MEMORY_KB("Memory.RendererShrinkIn30Min", -diff);
-              else
-                UMA_HISTOGRAM_MEMORY_KB("Memory.RendererGrowthIn30Min", diff);
-            }
-            renderer_count++;
-            continue;
-        }
-      }
-      case content::PROCESS_TYPE_PLUGIN:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Plugin", sample);
-        plugin_count++;
-        continue;
-      case content::PROCESS_TYPE_UTILITY:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Utility", sample);
-        other_count++;
-        continue;
-      case content::PROCESS_TYPE_ZYGOTE:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Zygote", sample);
-        other_count++;
-        continue;
-      case content::PROCESS_TYPE_SANDBOX_HELPER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.SandboxHelper", sample);
-        other_count++;
-        continue;
-      case content::PROCESS_TYPE_GPU:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Gpu", sample);
-        other_count++;
-        continue;
-#if defined(ENABLE_PLUGINS)
-      case content::PROCESS_TYPE_PPAPI_PLUGIN:
-        {
-          const std::vector<base::string16>& titles =
-              browser.processes[index].titles;
-          if (titles.size() == 1 &&
-              titles[0] == base::ASCIIToUTF16(content::kFlashPluginName)) {
-            UMA_HISTOGRAM_MEMORY_KB("Memory.PepperFlashPlugin", sample);
-          }
-        }
-        UMA_HISTOGRAM_MEMORY_KB("Memory.PepperPlugin", sample);
-        pepper_plugin_count++;
-        continue;
-      case content::PROCESS_TYPE_PPAPI_BROKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.PepperPluginBroker", sample);
-        pepper_plugin_broker_count++;
-        continue;
-#endif
-      case PROCESS_TYPE_NACL_LOADER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.NativeClient", sample);
-        other_count++;
-        continue;
-      case PROCESS_TYPE_NACL_BROKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.NativeClientBroker", sample);
-        other_count++;
-        continue;
-      default:
-        NOTREACHED();
-        continue;
-    }
-  }
-#if defined(OS_CHROMEOS)
-  // Chrome OS exposes system-wide graphics driver memory which has historically
-  // been a source of leak/bloat.
-  base::SystemMemoryInfoKB meminfo;
-  if (base::GetSystemMemoryInfo(&meminfo) && meminfo.gem_size != -1)
-    UMA_HISTOGRAM_MEMORY_MB("Memory.Graphics", meminfo.gem_size / 1024 / 1024);
-#endif
-
-  UMA_HISTOGRAM_COUNTS_100("Memory.ProcessLimit", process_limit);
-  UMA_HISTOGRAM_COUNTS_100("Memory.ProcessCount",
-      static_cast<int>(browser.processes.size()));
-  UMA_HISTOGRAM_COUNTS_100("Memory.ChromeProcessCount", chrome_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.ExtensionProcessCount", extension_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.OtherProcessCount", other_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.PluginProcessCount", plugin_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.PepperPluginProcessCount",
-      pepper_plugin_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.PepperPluginBrokerProcessCount",
-      pepper_plugin_broker_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.RendererProcessCount", renderer_count);
-  UMA_HISTOGRAM_COUNTS_100("Memory.WorkerProcessCount", worker_count);
-  // TODO(viettrungluu): Do we want separate counts for the other
-  // (platform-specific) process types?
-
-  int total_sample = static_cast<int>(aggregate_memory / 1000);
-  UMA_HISTOGRAM_MEMORY_MB("Memory.Total", total_sample);
-
-#if defined(OS_CHROMEOS)
-  UpdateSwapHistograms();
-#endif
-}
-
-#if defined(OS_CHROMEOS)
-void MemoryDetails::UpdateSwapHistograms() {
-  UMA_HISTOGRAM_BOOLEAN("Memory.Swap.HaveSwapped", swap_info_.num_writes > 0);
-  if (swap_info_.num_writes == 0)
-    return;
-
-  // Only record swap info when any swaps have happened, to give us more
-  // detail in the histograms.
-  const ProcessData& browser = *ChromeBrowser();
-  size_t aggregate_memory = 0;
-  for (size_t index = 0; index < browser.processes.size(); index++) {
-    int sample = static_cast<int>(browser.processes[index].working_set.swapped);
-    aggregate_memory += sample;
-    switch (browser.processes[index].process_type) {
-      case content::PROCESS_TYPE_BROWSER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Browser", sample);
-        continue;
-      case content::PROCESS_TYPE_RENDERER: {
-        ProcessMemoryInformation::RendererProcessType renderer_type =
-            browser.processes[index].renderer_type;
-        switch (renderer_type) {
-          case ProcessMemoryInformation::RENDERER_EXTENSION:
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Extension", sample);
-            continue;
-          case ProcessMemoryInformation::RENDERER_CHROME:
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Chrome", sample);
-            continue;
-          case ProcessMemoryInformation::RENDERER_UNKNOWN:
-            NOTREACHED() << "Unknown renderer process type.";
-            continue;
-          case ProcessMemoryInformation::RENDERER_NORMAL:
-          default:
-            UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Renderer", sample);
-            continue;
-        }
-      }
-      case content::PROCESS_TYPE_PLUGIN:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Plugin", sample);
-        continue;
-      case content::PROCESS_TYPE_UTILITY:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Utility", sample);
-        continue;
-      case content::PROCESS_TYPE_ZYGOTE:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Zygote", sample);
-        continue;
-      case content::PROCESS_TYPE_SANDBOX_HELPER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.SandboxHelper", sample);
-        continue;
-      case content::PROCESS_TYPE_GPU:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Gpu", sample);
-        continue;
-      case content::PROCESS_TYPE_PPAPI_PLUGIN:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.PepperPlugin", sample);
-        continue;
-      case content::PROCESS_TYPE_PPAPI_BROKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.PepperPluginBroker", sample);
-        continue;
-      case PROCESS_TYPE_NACL_LOADER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.NativeClient", sample);
-        continue;
-      case PROCESS_TYPE_NACL_BROKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.NativeClientBroker", sample);
-        continue;
-      default:
-        NOTREACHED();
-        continue;
-    }
-  }
-
-  int total_sample = static_cast<int>(aggregate_memory / 1000);
-  UMA_HISTOGRAM_MEMORY_MB("Memory.Swap.Total", total_sample);
-
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Swap.CompressedDataSize",
-                              swap_info_.compr_data_size / (1024 * 1024),
-                              1, 4096, 50);
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Swap.OriginalDataSize",
-                              swap_info_.orig_data_size / (1024 * 1024),
-                              1, 4096, 50);
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Swap.MemUsedTotal",
-                              swap_info_.mem_used_total / (1024 * 1024),
-                              1, 4096, 50);
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Swap.NumReads",
-                              swap_info_.num_reads,
-                              1, 100000000, 100);
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Swap.NumWrites",
-                              swap_info_.num_writes,
-                              1, 100000000, 100);
-
-  if (swap_info_.orig_data_size > 0 && swap_info_.compr_data_size > 0) {
-    UMA_HISTOGRAM_CUSTOM_COUNTS(
-        "Memory.Swap.CompressionRatio",
-        swap_info_.orig_data_size / swap_info_.compr_data_size,
-        1, 20, 20);
-  }
-}
-
-#endif  // defined(OS_CHROMEOS)