// 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 "base/metrics/histogram_macros.h" #include "base/process/process_metrics.h" #include "build/build_config.h" namespace metrics { // Record a size in megabytes, a potential interval from 250MB up to 32 GB. #define UMA_HISTOGRAM_ALLOCATED_MEGABYTES(name, sample) \ UMA_HISTOGRAM_CUSTOM_COUNTS(name, sample, 250, 32768, 50) // Records a statistics |sample| for UMA histogram |name| // using a linear distribution of buckets. #define UMA_HISTOGRAM_LINEAR(name, sample, max, buckets) \ STATIC_HISTOGRAM_POINTER_BLOCK( \ name, Add(sample), \ base::LinearHistogram::FactoryGet( \ name, \ 1, /* Minimum. The 0 bin for underflow is automatically added. */ \ max + 1, /* Ensure bucket size of |maximum| / |bucket_count|. */ \ buckets + 2, /* Account for the underflow and overflow bins. */ \ base::Histogram::kUmaTargetedHistogramFlag)) #define UMA_HISTOGRAM_MEGABYTES_LINEAR(name, sample) \ UMA_HISTOGRAM_LINEAR(name, sample, 2500, 50) void RecordMemoryStats(RecordMemoryStatsType type) { #if BUILDFLAG(IS_CHROMEOS) // Record graphics GEM object size in a histogram with 50 MB buckets. int mem_gpu_mb = 0; bool mem_gpu_result = false; base::GraphicsMemoryInfoKB gpu_memory; mem_gpu_result = base::GetGraphicsMemoryInfo(&gpu_memory); if (mem_gpu_result) { mem_gpu_mb = gpu_memory.gpu_memory_size / 1024 / 1024; switch (type) { case RECORD_MEMORY_STATS_CONTENTS_OOM_KILLED: UMA_HISTOGRAM_MEGABYTES_LINEAR("Memory.OOMKill.Contents.MemGraphicsMB", mem_gpu_mb); break; case RECORD_MEMORY_STATS_EXTENSIONS_OOM_KILLED: UMA_HISTOGRAM_MEGABYTES_LINEAR( "Memory.OOMKill.Extensions.MemGraphicsMB", mem_gpu_mb); break; } } #endif base::SystemMemoryInfoKB memory; if (base::GetSystemMemoryInfo(&memory)) { // On Intel, graphics objects are in anonymous pages, but on ARM they are // not. For a total "allocated count" add in graphics pages on ARM. int mem_allocated_mb = (memory.active_anon + memory.inactive_anon) / 1024; #if BUILDFLAG(IS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY) mem_allocated_mb += mem_gpu_mb; #endif int mem_available_mb = (memory.active_file + memory.inactive_file + memory.free) / 1024; switch (type) { case RECORD_MEMORY_STATS_CONTENTS_OOM_KILLED: { UMA_HISTOGRAM_ALLOCATED_MEGABYTES( "Memory.OOMKill.Contents.MemAllocatedMB", mem_allocated_mb); UMA_HISTOGRAM_LARGE_MEMORY_MB("Memory.OOMKill.Contents.MemAvailableMB", mem_available_mb); break; } case RECORD_MEMORY_STATS_EXTENSIONS_OOM_KILLED: { UMA_HISTOGRAM_ALLOCATED_MEGABYTES( "Memory.OOMKill.Extensions.MemAllocatedMB", mem_allocated_mb); UMA_HISTOGRAM_LARGE_MEMORY_MB( "Memory.OOMKill.Extensions.MemAvailableMB", mem_available_mb); break; } } #if BUILDFLAG(IS_CHROMEOS) // Record shared memory (used by renderer/GPU buffers). int mem_shmem_mb = memory.shmem / 1024; switch (type) { case RECORD_MEMORY_STATS_CONTENTS_OOM_KILLED: UMA_HISTOGRAM_MEGABYTES_LINEAR("Memory.OOMKill.Contents.MemShmemMB", mem_shmem_mb); break; case RECORD_MEMORY_STATS_EXTENSIONS_OOM_KILLED: UMA_HISTOGRAM_MEGABYTES_LINEAR("Memory.OOMKill.Extensions.MemShmemMB", mem_shmem_mb); break; } #endif } } } // namespace metrics