| // 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 "third_party/blink/renderer/platform/instrumentation/partition_alloc_memory_dump_provider.h" |
| |
| #include "base/allocator/partition_allocator/partition_alloc.h" |
| #include "base/format_macros.h" |
| #include "base/metrics/histogram_functions.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/trace_event/malloc_dump_provider.h" |
| #include "base/trace_event/process_memory_dump.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/partitions.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| const char kPartitionAllocDumpName[] = "partition_alloc"; |
| const char kPartitionsDumpName[] = "partitions"; |
| |
| std::string GetPartitionDumpName(const char* partition_name) { |
| return base::StringPrintf("%s/%s/%s", kPartitionAllocDumpName, |
| kPartitionsDumpName, partition_name); |
| } |
| |
| // This class is used to invert the dependency of PartitionAlloc on the |
| // PartitionAllocMemoryDumpProvider. This implements an interface that will |
| // be called with memory statistics for each bucket in the allocator. |
| class PartitionStatsDumperImpl final : public base::PartitionStatsDumper { |
| DISALLOW_NEW(); |
| |
| public: |
| PartitionStatsDumperImpl( |
| base::trace_event::ProcessMemoryDump* memory_dump, |
| base::trace_event::MemoryDumpLevelOfDetail level_of_detail) |
| : memory_dump_(memory_dump), uid_(0), total_active_bytes_(0) {} |
| |
| // PartitionStatsDumper implementation. |
| void PartitionDumpTotals(const char* partition_name, |
| const base::PartitionMemoryStats*) override; |
| void PartitionsDumpBucketStats( |
| const char* partition_name, |
| const base::PartitionBucketMemoryStats*) override; |
| |
| size_t TotalActiveBytes() const { return total_active_bytes_; } |
| |
| private: |
| base::trace_event::ProcessMemoryDump* memory_dump_; |
| uint64_t uid_; |
| size_t total_active_bytes_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PartitionStatsDumperImpl); |
| }; |
| |
| void PartitionStatsDumperImpl::PartitionDumpTotals( |
| const char* partition_name, |
| const base::PartitionMemoryStats* memory_stats) { |
| total_active_bytes_ += memory_stats->total_active_bytes; |
| std::string dump_name = GetPartitionDumpName(partition_name); |
| base::trace_event::MemoryAllocatorDump* allocator_dump = |
| memory_dump_->CreateAllocatorDump(dump_name); |
| allocator_dump->AddScalar("size", "bytes", |
| memory_stats->total_resident_bytes); |
| allocator_dump->AddScalar("allocated_objects_size", "bytes", |
| memory_stats->total_active_bytes); |
| allocator_dump->AddScalar("virtual_size", "bytes", |
| memory_stats->total_mmapped_bytes); |
| allocator_dump->AddScalar("virtual_committed_size", "bytes", |
| memory_stats->total_committed_bytes); |
| allocator_dump->AddScalar("decommittable_size", "bytes", |
| memory_stats->total_decommittable_bytes); |
| allocator_dump->AddScalar("discardable_size", "bytes", |
| memory_stats->total_discardable_bytes); |
| if (memory_stats->has_thread_cache) { |
| const auto& thread_cache_stats = memory_stats->current_thread_cache_stats; |
| auto* thread_cache_dump = memory_dump_->CreateAllocatorDump( |
| dump_name + "/thread_cache/main_thread"); |
| base::trace_event::ReportPartitionAllocThreadCacheStats(thread_cache_dump, |
| thread_cache_stats); |
| |
| const auto& all_thread_caches_stats = memory_stats->all_thread_caches_stats; |
| auto* all_thread_caches_dump = |
| memory_dump_->CreateAllocatorDump(dump_name + "/thread_cache"); |
| base::trace_event::ReportPartitionAllocThreadCacheStats( |
| all_thread_caches_dump, all_thread_caches_stats); |
| |
| if (all_thread_caches_stats.alloc_count) { |
| int hit_rate_percent = |
| static_cast<int>((100 * all_thread_caches_stats.alloc_hits) / |
| all_thread_caches_stats.alloc_count); |
| base::UmaHistogramPercentage("Memory.PartitionAlloc.ThreadCache.HitRate", |
| hit_rate_percent); |
| |
| int batch_fill_rate_percent = |
| static_cast<int>((100 * all_thread_caches_stats.batch_fill_count) / |
| all_thread_caches_stats.alloc_count); |
| base::UmaHistogramPercentage( |
| "Memory.PartitionAlloc.ThreadCache.BatchFillRate", |
| batch_fill_rate_percent); |
| } |
| |
| if (thread_cache_stats.alloc_count) { |
| int hit_rate_percent = |
| static_cast<int>((100 * thread_cache_stats.alloc_hits) / |
| thread_cache_stats.alloc_count); |
| base::UmaHistogramPercentage( |
| "Memory.PartitionAlloc.ThreadCache.HitRate.MainThread", |
| hit_rate_percent); |
| |
| int batch_fill_rate_percent = |
| static_cast<int>((100 * thread_cache_stats.batch_fill_count) / |
| thread_cache_stats.alloc_count); |
| base::UmaHistogramPercentage( |
| "Memory.PartitionAlloc.ThreadCache.BatchFillRate.MainThread", |
| batch_fill_rate_percent); |
| } |
| } |
| } |
| |
| void PartitionStatsDumperImpl::PartitionsDumpBucketStats( |
| const char* partition_name, |
| const base::PartitionBucketMemoryStats* memory_stats) { |
| DCHECK(memory_stats->is_valid); |
| std::string dump_name = GetPartitionDumpName(partition_name); |
| if (memory_stats->is_direct_map) { |
| dump_name.append(base::StringPrintf("/buckets/directMap_%" PRIu64, ++uid_)); |
| } else { |
| dump_name.append(base::StringPrintf("/buckets/bucket_%" PRIu32, |
| memory_stats->bucket_slot_size)); |
| } |
| |
| base::trace_event::MemoryAllocatorDump* allocator_dump = |
| memory_dump_->CreateAllocatorDump(dump_name); |
| allocator_dump->AddScalar("size", "bytes", memory_stats->resident_bytes); |
| allocator_dump->AddScalar("allocated_objects_size", "bytes", |
| memory_stats->active_bytes); |
| allocator_dump->AddScalar("slot_size", "bytes", |
| memory_stats->bucket_slot_size); |
| allocator_dump->AddScalar("decommittable_size", "bytes", |
| memory_stats->decommittable_bytes); |
| allocator_dump->AddScalar("discardable_size", "bytes", |
| memory_stats->discardable_bytes); |
| // TODO(bartekn): Rename the scalar names. |
| allocator_dump->AddScalar("total_slot_span_size", "bytes", |
| memory_stats->allocated_slot_span_size); |
| allocator_dump->AddScalar("active_slot_spans", "objects", |
| memory_stats->num_active_slot_spans); |
| allocator_dump->AddScalar("full_slot_spans", "objects", |
| memory_stats->num_full_slot_spans); |
| allocator_dump->AddScalar("empty_slot_spans", "objects", |
| memory_stats->num_empty_slot_spans); |
| allocator_dump->AddScalar("decommitted_slot_spans", "objects", |
| memory_stats->num_decommitted_slot_spans); |
| } |
| |
| } // namespace |
| |
| PartitionAllocMemoryDumpProvider* PartitionAllocMemoryDumpProvider::Instance() { |
| DEFINE_STATIC_LOCAL(PartitionAllocMemoryDumpProvider, instance, ()); |
| return &instance; |
| } |
| |
| bool PartitionAllocMemoryDumpProvider::OnMemoryDump( |
| const base::trace_event::MemoryDumpArgs& args, |
| base::trace_event::ProcessMemoryDump* memory_dump) { |
| using base::trace_event::MemoryDumpLevelOfDetail; |
| |
| MemoryDumpLevelOfDetail level_of_detail = args.level_of_detail; |
| PartitionStatsDumperImpl partition_stats_dumper(memory_dump, level_of_detail); |
| |
| base::trace_event::MemoryAllocatorDump* partitions_dump = |
| memory_dump->CreateAllocatorDump(base::StringPrintf( |
| "%s/%s", kPartitionAllocDumpName, kPartitionsDumpName)); |
| |
| // This method calls memoryStats.partitionsDumpBucketStats with memory |
| // statistics. |
| WTF::Partitions::DumpMemoryStats( |
| level_of_detail != MemoryDumpLevelOfDetail::DETAILED, |
| &partition_stats_dumper); |
| |
| base::trace_event::MemoryAllocatorDump* allocated_objects_dump = |
| memory_dump->CreateAllocatorDump( |
| WTF::Partitions::kAllocatedObjectPoolName); |
| allocated_objects_dump->AddScalar("size", "bytes", |
| partition_stats_dumper.TotalActiveBytes()); |
| memory_dump->AddOwnershipEdge(allocated_objects_dump->guid(), |
| partitions_dump->guid()); |
| |
| return true; |
| } |
| |
| PartitionAllocMemoryDumpProvider::PartitionAllocMemoryDumpProvider() = default; |
| PartitionAllocMemoryDumpProvider::~PartitionAllocMemoryDumpProvider() = default; |
| |
| } // namespace blink |
