1 /* Copyright 2022 The TensorFlow Authors. All Rights Reserved.
2
3 Licensed under the Apache License, Version 2.0 (the "License");
4 you may not use this file except in compliance with the License.
5 You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9 Unless required by applicable law or agreed to in writing, software
10 distributed under the License is distributed on an "AS IS" BASIS,
11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 See the License for the specific language governing permissions and
13 limitations under the License.
14 ==============================================================================*/
15 #include "tensorflow/lite/profiling/root_profiler.h"
16
17 #include <memory>
18 #include <utility>
19 #include <vector>
20
21 namespace tflite {
22 namespace profiling {
23
AddProfiler(Profiler * profiler)24 void RootProfiler::AddProfiler(Profiler* profiler) {
25 if (profiler == nullptr) return;
26 profilers_.push_back(profiler);
27 }
28
AddProfiler(std::unique_ptr<Profiler> && profiler)29 void RootProfiler::AddProfiler(std::unique_ptr<Profiler>&& profiler) {
30 if (profiler == nullptr) return;
31 owned_profilers_.emplace_back(std::move(profiler));
32 profilers_.push_back(owned_profilers_.back().get());
33 }
34
BeginEvent(const char * tag,EventType event_type,int64_t event_metadata1,int64_t event_metadata2)35 uint32_t RootProfiler::BeginEvent(const char* tag, EventType event_type,
36 int64_t event_metadata1,
37 int64_t event_metadata2) {
38 // TODO(b/238913100): Remove the workaround.
39 if (profilers_.size() == 1) {
40 return profilers_[0]->BeginEvent(tag, event_type, event_metadata1,
41 event_metadata2);
42 }
43 auto id = next_event_id_++;
44 std::vector<uint32_t> event_ids;
45 event_ids.reserve(profilers_.size());
46 for (auto* profiler : profilers_) {
47 event_ids.push_back(profiler->BeginEvent(tag, event_type, event_metadata1,
48 event_metadata2));
49 }
50 events_.emplace(id, std::move(event_ids));
51 return id;
52 }
53
EndEvent(uint32_t event_handle,int64_t event_metadata1,int64_t event_metadata2)54 void RootProfiler::EndEvent(uint32_t event_handle, int64_t event_metadata1,
55 int64_t event_metadata2) {
56 // TODO(b/238913100): Remove the workaround.
57 if (profilers_.size() == 1) {
58 return profilers_[0]->EndEvent(event_handle, event_metadata1,
59 event_metadata2);
60 }
61 if (const auto it = events_.find(event_handle); it != events_.end()) {
62 const auto& event_ids = it->second;
63 for (auto idx = 0; idx < event_ids.size(); idx++) {
64 profilers_[idx]->EndEvent(event_ids[idx], event_metadata1,
65 event_metadata2);
66 }
67 events_.erase(it);
68 }
69 }
70
EndEvent(uint32_t event_handle)71 void RootProfiler::EndEvent(uint32_t event_handle) {
72 // TODO(b/238913100): Remove the workaround.
73 if (profilers_.size() == 1) {
74 return profilers_[0]->EndEvent(event_handle);
75 }
76 if (const auto it = events_.find(event_handle); it != events_.end()) {
77 const auto& event_ids = it->second;
78 for (auto idx = 0; idx < event_ids.size(); idx++) {
79 profilers_[idx]->EndEvent(event_ids[idx]);
80 }
81 events_.erase(it);
82 }
83 }
84
AddEvent(const char * tag,EventType event_type,uint64_t metric,int64_t event_metadata1,int64_t event_metadata2)85 void RootProfiler::AddEvent(const char* tag, EventType event_type,
86 uint64_t metric, int64_t event_metadata1,
87 int64_t event_metadata2) {
88 for (auto* profiler : profilers_) {
89 profiler->AddEvent(tag, event_type, metric, event_metadata1,
90 event_metadata2);
91 }
92 }
93
AddEventWithData(const char * tag,EventType event_type,const void * data)94 void RootProfiler::AddEventWithData(const char* tag, EventType event_type,
95 const void* data) {
96 for (auto* profiler : profilers_) {
97 profiler->AddEventWithData(tag, event_type, data);
98 }
99 }
100
RemoveChildProfilers()101 void RootProfiler::RemoveChildProfilers() {
102 owned_profilers_.clear();
103 profilers_.clear();
104 // Previous `BeginEvent` calls will be discarded.
105 events_.clear();
106 }
107
108 } // namespace profiling
109 } // namespace tflite
110