1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "pixelstats: TempResidencyStats"
#include <aidl/android/frameworks/stats/IStats.h>
#include <android-base/chrono_utils.h>
#include <android-base/file.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <android/binder_manager.h>
#include <hardware/google/pixel/pixelstats/pixelatoms.pb.h>
#include <pixelstats/TempResidencyReporter.h>
#include <utils/Log.h>
#include <cinttypes>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
using aidl::android::frameworks::stats::IStats;
using aidl::android::frameworks::stats::VendorAtom;
using aidl::android::frameworks::stats::VendorAtomValue;
using android::base::ReadFileToString;
using android::hardware::google::pixel::PixelAtoms::ThermalDfsStats;
/**
* Parse file_contents and read residency stats into cur_stats.
*/
bool parse_file_contents(std::string file_contents,
std::map<std::string, std::vector<int64_t>> *cur_stats) {
const char *data = file_contents.c_str();
int data_len = file_contents.length();
char sensor_name[32];
int offset = 0;
int bytes_read;
while (sscanf(data + offset, "THERMAL ZONE: %31s\n%n", sensor_name, &bytes_read) == 1) {
int64_t temp_res_value;
int num_stats_buckets;
int index = 0;
offset += bytes_read;
if (offset >= data_len)
return false;
std::string sensor_name_str = sensor_name;
if (!sscanf(data + offset, "NUM_TEMP_RESIDENCY_BUCKETS: %d\n%n", &num_stats_buckets,
&bytes_read))
return false;
offset += bytes_read;
if (offset >= data_len)
return false;
while (index < num_stats_buckets) {
if (sscanf(data + offset, "-inf - %*d ====> %ldms\n%n", &temp_res_value, &bytes_read) !=
1 &&
sscanf(data + offset, "%*d - %*d ====> %ldms\n%n", &temp_res_value, &bytes_read) !=
1 &&
sscanf(data + offset, "%*d - inf ====> %ldms\n\n%n", &temp_res_value,
&bytes_read) != 1)
return false;
(*cur_stats)[sensor_name_str].push_back(temp_res_value);
index++;
offset += bytes_read;
if ((offset >= data_len) && (index < num_stats_buckets))
return false;
}
}
return true;
}
/**
* Logs the Temperature residency stats for every thermal zone.
*/
void TempResidencyReporter::logTempResidencyStats(const std::shared_ptr<IStats> &stats_client,
const char *const temperature_residency_path) {
if (!temperature_residency_path) {
ALOGV("TempResidencyStatsPath path not specified");
return;
}
std::string file_contents;
if (!ReadFileToString(temperature_residency_path, &file_contents)) {
ALOGE("Unable to read TempResidencyStatsPath %s - %s", temperature_residency_path,
strerror(errno));
return;
}
std::map<std::string, std::vector<int64_t>> cur_stats_map;
if (!parse_file_contents(file_contents, &cur_stats_map)) {
ALOGE("Fail to parse TempResidencyStatsPath");
return;
}
if (!cur_stats_map.size())
return;
::android::base::boot_clock::time_point curTime = ::android::base::boot_clock::now();
int64_t since_last_update_ms =
std::chrono::duration_cast<std::chrono::milliseconds>(curTime - prevTime).count();
auto cur_stats_map_iterator = cur_stats_map.begin();
VendorAtomValue tmp_atom_value;
// Iterate through cur_stats_map by sensor_name
while (cur_stats_map_iterator != cur_stats_map.end()) {
std::vector<VendorAtomValue> values;
std::string sensor_name_str = cur_stats_map_iterator->first;
std::vector<int64_t> residency_stats = cur_stats_map_iterator->second;
tmp_atom_value.set<VendorAtomValue::stringValue>(sensor_name_str);
values.push_back(tmp_atom_value);
tmp_atom_value.set<VendorAtomValue::longValue>(since_last_update_ms);
values.push_back(tmp_atom_value);
bool key_in_map = (prev_stats.find(sensor_name_str)) != prev_stats.end();
bool stat_len_match = (residency_stats.size() == prev_stats[sensor_name_str].size());
if (key_in_map && !stat_len_match)
prev_stats[sensor_name_str].clear();
int64_t sum_residency = 0;
if (residency_stats.size() > kMaxBucketLen) {
cur_stats_map_iterator++;
continue;
}
// Iterate over every temperature residency buckets
for (int index = 0; index < residency_stats.size(); index++) {
// Get diff if stats arr length match previous stats
// Otherwise use raw stats as temperature residency stats per day
if (key_in_map && stat_len_match) {
int64_t diff_residency =
residency_stats[index] - prev_stats[sensor_name_str][index];
tmp_atom_value.set<VendorAtomValue::longValue>(diff_residency);
sum_residency += diff_residency;
prev_stats[sensor_name_str][index] = residency_stats[index];
} else {
tmp_atom_value.set<VendorAtomValue::longValue>(residency_stats[index]);
sum_residency += residency_stats[index];
prev_stats[sensor_name_str].push_back(residency_stats[index]);
}
values.push_back(tmp_atom_value);
}
if (abs(since_last_update_ms - sum_residency) > kMaxResidencyDiffMs)
ALOGI("Thermal zone: %s Temperature residency stats not good!\ndevice sum_residency: "
"%ldms, since_last_update_ms %ldms\n",
sensor_name_str.c_str(), sum_residency, since_last_update_ms);
// Send vendor atom to IStats HAL
VendorAtom event = {.reverseDomainName = "",
.atomId = PixelAtoms::Atom::kVendorTempResidencyStats,
.values = std::move(values)};
ndk::ScopedAStatus ret = stats_client->reportVendorAtom(event);
if (!ret.isOk())
ALOGE("Unable to report VendorTempResidencyStats to Stats service");
cur_stats_map_iterator++;
}
prevTime = curTime;
}
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
|
