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// Copyright 2015 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 "components/metrics/system_memory_stats_recorder.h"
#include <windows.h>
#include "base/metrics/histogram_macros.h"
#include "base/process/process_metrics.h"
namespace metrics {
namespace {
enum { kMBytes = 1024 * 1024 };
}
void RecordMemoryStats(RecordMemoryStatsType type) {
MEMORYSTATUSEX mem_status;
mem_status.dwLength = sizeof(mem_status);
if (!::GlobalMemoryStatusEx(&mem_status))
return;
switch (type) {
case RECORD_MEMORY_STATS_TAB_DISCARDED: {
UMA_HISTOGRAM_CUSTOM_COUNTS("Memory.Stats.Win.MemoryLoad",
mem_status.dwMemoryLoad, 1, 100, 101);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.TotalPhys2",
mem_status.ullTotalPhys / kMBytes);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.AvailPhys2",
mem_status.ullAvailPhys / kMBytes);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.TotalPageFile2",
mem_status.ullTotalPageFile / kMBytes);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.AvailPageFile2",
mem_status.ullAvailPageFile / kMBytes);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.TotalVirtual2",
mem_status.ullTotalVirtual / kMBytes);
UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.Stats.Win.AvailVirtual2",
mem_status.ullAvailVirtual / kMBytes);
break;
}
default:
NOTREACHED() << "Received unexpected notification";
break;
}
}
} // namespace metrics
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