1 /*
2 * Copyright (C) 2021 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/proto/chrome_system_probes_parser.h"
18
19 #include <cstdint>
20
21 #include "perfetto/protozero/proto_decoder.h"
22 #include "src/trace_processor/importers/common/event_tracker.h"
23 #include "src/trace_processor/importers/common/process_tracker.h"
24 #include "src/trace_processor/importers/common/track_tracker.h"
25 #include "src/trace_processor/importers/common/tracks.h"
26 #include "src/trace_processor/importers/common/tracks_common.h"
27 #include "src/trace_processor/storage/trace_storage.h"
28 #include "src/trace_processor/types/trace_processor_context.h"
29
30 #include "protos/perfetto/trace/ps/process_stats.pbzero.h"
31 #include "src/trace_processor/types/variadic.h"
32
33 namespace perfetto::trace_processor {
34
ChromeSystemProbesParser(TraceProcessorContext * context)35 ChromeSystemProbesParser::ChromeSystemProbesParser(
36 TraceProcessorContext* context)
37 : context_(context),
38 is_peak_rss_resettable_id_(
39 context->storage->InternString("is_peak_rss_resettable")) {}
40
ParseProcessStats(int64_t ts,ConstBytes blob)41 void ChromeSystemProbesParser::ParseProcessStats(int64_t ts, ConstBytes blob) {
42 protos::pbzero::ProcessStats::Decoder stats(blob.data, blob.size);
43 for (auto it = stats.processes(); it; ++it) {
44 protozero::ProtoDecoder proc(*it);
45 auto pid_field =
46 proc.FindField(protos::pbzero::ProcessStats::Process::kPidFieldNumber);
47 uint32_t pid = pid_field.as_uint32();
48
49 for (auto fld = proc.ReadField(); fld.valid(); fld = proc.ReadField()) {
50 using ProcessStats = protos::pbzero::ProcessStats;
51 if (fld.id() == ProcessStats::Process::kIsPeakRssResettableFieldNumber) {
52 UniquePid upid = context_->process_tracker->GetOrCreateProcess(pid);
53 context_->process_tracker->AddArgsTo(upid).AddArg(
54 is_peak_rss_resettable_id_, Variadic::Boolean(fld.as_bool()));
55 continue;
56 }
57 if (fld.id() ==
58 ProcessStats::Process::kChromePrivateFootprintKbFieldNumber) {
59 UniquePid upid = context_->process_tracker->GetOrCreateProcess(pid);
60 TrackId track = context_->track_tracker->InternTrack(
61 tracks::kChromeProcessStatsBlueprint,
62 tracks::Dimensions(upid, "private_footprint_kb"));
63 int64_t value = fld.as_int64() * 1024;
64 context_->event_tracker->PushCounter(ts, static_cast<double>(value),
65 track);
66 continue;
67 }
68 if (fld.id() ==
69 ProcessStats::Process::kChromePeakResidentSetKbFieldNumber) {
70 UniquePid upid = context_->process_tracker->GetOrCreateProcess(pid);
71 TrackId track = context_->track_tracker->InternTrack(
72 tracks::kChromeProcessStatsBlueprint,
73 tracks::Dimensions(upid, "peak_resident_set_kb"));
74 int64_t value = fld.as_int64() * 1024;
75 context_->event_tracker->PushCounter(ts, static_cast<double>(value),
76 track);
77 continue;
78 }
79 }
80 }
81 }
82
83 } // namespace perfetto::trace_processor
84