1 /*
2 * Copyright (C) 2024 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "src/trace_processor/importers/common/cpu_tracker.h"
18
19 #include <cstdint>
20 #include <optional>
21
22 #include "perfetto/base/logging.h"
23 #include "perfetto/ext/base/string_view.h"
24 #include "src/trace_processor/importers/common/machine_tracker.h"
25 #include "src/trace_processor/tables/metadata_tables_py.h"
26
27 namespace perfetto::trace_processor {
28
CpuTracker(TraceProcessorContext * context)29 CpuTracker::CpuTracker(TraceProcessorContext* context) : context_(context) {
30 // Preallocate ucpu of this machine for maintaining the relative order between
31 // ucpu and cpu.
32 auto machine_id = context_->machine_tracker->machine_id();
33 if (machine_id.has_value())
34 ucpu_offset_ = machine_id->value * kMaxCpusPerMachine;
35
36 for (auto id = 0u; id < kMaxCpusPerMachine; id++) {
37 // Only populate the |machine_id| column. The |cpu| column is update only
38 // when the CPU is present.
39 tables::CpuTable::Row cpu_row;
40 cpu_row.machine_id = machine_id;
41 context_->storage->mutable_cpu_table()->Insert(cpu_row);
42 }
43 }
44
SetCpuInfo(uint32_t cpu,base::StringView processor,uint32_t cluster_id,std::optional<uint32_t> capacity)45 tables::CpuTable::Id CpuTracker::SetCpuInfo(uint32_t cpu,
46 base::StringView processor,
47 uint32_t cluster_id,
48 std::optional<uint32_t> capacity) {
49 auto cpu_id = GetOrCreateCpu(cpu);
50
51 auto cpu_row = context_->storage->mutable_cpu_table()->FindById(cpu_id);
52 PERFETTO_DCHECK(cpu_row.has_value());
53
54 if (!processor.empty()) {
55 auto string_id = context_->storage->InternString(processor);
56 cpu_row->set_processor(string_id);
57 }
58 cpu_row->set_cluster_id(cluster_id);
59 if (capacity) {
60 cpu_row->set_capacity(*capacity);
61 }
62 return cpu_id;
63 }
64
65 } // namespace perfetto::trace_processor
66