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Side by Side Diff: components/discardable_memory/service/discardable_shared_memory_manager.cc

Issue 2535213002: [WIP] Add SharedMemoryTracker to dump base::SharedMemory usage
Patch Set: Implement buckets Created 3 years, 11 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "components/discardable_memory/service/discardable_shared_memory_manage r.h" 5 #include "components/discardable_memory/service/discardable_shared_memory_manage r.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 #include <utility> 8 #include <utility>
9 9
10 #include "base/atomic_sequence_num.h" 10 #include "base/atomic_sequence_num.h"
11 #include "base/bind.h" 11 #include "base/bind.h"
12 #include "base/callback.h" 12 #include "base/callback.h"
13 #include "base/command_line.h" 13 #include "base/command_line.h"
14 #include "base/debug/crash_logging.h" 14 #include "base/debug/crash_logging.h"
15 #include "base/macros.h" 15 #include "base/macros.h"
16 #include "base/memory/discardable_memory.h" 16 #include "base/memory/discardable_memory.h"
17 #include "base/memory/memory_coordinator_client_registry.h" 17 #include "base/memory/memory_coordinator_client_registry.h"
18 #include "base/memory/ptr_util.h" 18 #include "base/memory/ptr_util.h"
19 #include "base/memory/shared_memory_tracker.h"
19 #include "base/numerics/safe_math.h" 20 #include "base/numerics/safe_math.h"
20 #include "base/process/memory.h" 21 #include "base/process/memory.h"
21 #include "base/strings/string_number_conversions.h" 22 #include "base/strings/string_number_conversions.h"
22 #include "base/strings/stringprintf.h" 23 #include "base/strings/stringprintf.h"
23 #include "base/sys_info.h" 24 #include "base/sys_info.h"
24 #include "base/threading/thread_task_runner_handle.h" 25 #include "base/threading/thread_task_runner_handle.h"
25 #include "base/trace_event/memory_allocator_dump.h" 26 #include "base/trace_event/memory_allocator_dump.h"
26 #include "base/trace_event/memory_dump_manager.h" 27 #include "base/trace_event/memory_dump_manager.h"
27 #include "base/trace_event/process_memory_dump.h" 28 #include "base/trace_event/process_memory_dump.h"
28 #include "base/trace_event/trace_event.h" 29 #include "base/trace_event/trace_event.h"
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321 // corresponding dump for the same segment, this will avoid to 322 // corresponding dump for the same segment, this will avoid to
322 // double-count them in tracing. If, instead, no other process will emit a 323 // double-count them in tracing. If, instead, no other process will emit a
323 // dump with the same guid, the segment will be accounted to the browser. 324 // dump with the same guid, the segment will be accounted to the browser.
324 const uint64_t client_tracing_id = 325 const uint64_t client_tracing_id =
325 ClientProcessUniqueIdToTracingProcessId(client_id); 326 ClientProcessUniqueIdToTracingProcessId(client_id);
326 base::trace_event::MemoryAllocatorDumpGuid shared_segment_guid = 327 base::trace_event::MemoryAllocatorDumpGuid shared_segment_guid =
327 DiscardableSharedMemoryHeap::GetSegmentGUIDForTracing( 328 DiscardableSharedMemoryHeap::GetSegmentGUIDForTracing(
328 client_tracing_id, segment_id); 329 client_tracing_id, segment_id);
329 pmd->CreateSharedGlobalAllocatorDump(shared_segment_guid); 330 pmd->CreateSharedGlobalAllocatorDump(shared_segment_guid);
330 pmd->AddOwnershipEdge(dump->guid(), shared_segment_guid); 331 pmd->AddOwnershipEdge(dump->guid(), shared_segment_guid);
332 base::SharedMemoryTracker::AddOwnershipEdgeToSharedGlobalDump(
333 pmd, shared_segment_guid,
334 segment->memory()->handle(), segment->memory()->mapped_size());
331 335
332 #if defined(COUNT_RESIDENT_BYTES_SUPPORTED) 336 #if defined(COUNT_RESIDENT_BYTES_SUPPORTED)
333 if (args.level_of_detail == 337 if (args.level_of_detail ==
334 base::trace_event::MemoryDumpLevelOfDetail::DETAILED) { 338 base::trace_event::MemoryDumpLevelOfDetail::DETAILED) {
335 size_t resident_size = 339 size_t resident_size =
336 base::trace_event::ProcessMemoryDump::CountResidentBytes( 340 base::trace_event::ProcessMemoryDump::CountResidentBytes(
337 segment->memory()->memory(), segment->memory()->mapped_size()); 341 segment->memory()->memory(), segment->memory()->mapped_size());
338 342
339 // This is added to the global dump since it has to be attributed to 343 // This is added to the global dump since it has to be attributed to
340 // both the allocator dumps involved. 344 // both the allocator dumps involved.
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617 return; 621 return;
618 622
619 enforce_memory_policy_pending_ = true; 623 enforce_memory_policy_pending_ = true;
620 DCHECK(enforce_memory_policy_task_runner_); 624 DCHECK(enforce_memory_policy_task_runner_);
621 enforce_memory_policy_task_runner_->PostDelayedTask( 625 enforce_memory_policy_task_runner_->PostDelayedTask(
622 FROM_HERE, enforce_memory_policy_callback_, 626 FROM_HERE, enforce_memory_policy_callback_,
623 base::TimeDelta::FromMilliseconds(kEnforceMemoryPolicyDelayMs)); 627 base::TimeDelta::FromMilliseconds(kEnforceMemoryPolicyDelayMs));
624 } 628 }
625 629
626 } // namespace discardable_memory 630 } // namespace discardable_memory
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