Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | #define LOG_TAG "storaged" |
| 18 | |
| 19 | #include <stdint.h> |
| 20 | #include <time.h> |
| 21 | |
| 22 | #include <string> |
| 23 | #include <sstream> |
| 24 | #include <unordered_map> |
| 25 | |
| 26 | #include <android-base/file.h> |
| 27 | #include <android-base/logging.h> |
| 28 | #include <android-base/macros.h> |
| 29 | #include <android-base/stringprintf.h> |
| 30 | #include <log/log_event_list.h> |
| 31 | #include <packagelistparser/packagelistparser.h> |
| 32 | |
| 33 | #include "storaged.h" |
| 34 | #include "storaged_uid_monitor.h" |
| 35 | |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 36 | using namespace android; |
| 37 | using namespace android::base; |
| 38 | |
| 39 | static bool packagelist_parse_cb(pkg_info* info, void* userdata) |
| 40 | { |
| 41 | std::unordered_map<uint32_t, struct uid_info>* uids = |
| 42 | reinterpret_cast<std::unordered_map<uint32_t, struct uid_info>*>(userdata); |
| 43 | |
| 44 | if (uids->find(info->uid) != uids->end()) { |
| 45 | (*uids)[info->uid].name = info->name; |
| 46 | } |
| 47 | |
| 48 | packagelist_free(info); |
| 49 | return true; |
| 50 | } |
| 51 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 52 | std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats() |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 53 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 54 | std::unique_ptr<lock_t> lock(new lock_t(&um_lock)); |
| 55 | return get_uid_io_stats_locked(); |
| 56 | }; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 57 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 58 | std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats_locked() |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 59 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 60 | std::unordered_map<uint32_t, struct uid_info> uid_io_stats; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 61 | std::string buffer; |
| 62 | if (!android::base::ReadFileToString(UID_IO_STATS_PATH, &buffer)) { |
| 63 | PLOG_TO(SYSTEM, ERROR) << UID_IO_STATS_PATH << ": ReadFileToString failed"; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 64 | return uid_io_stats; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | std::stringstream ss(buffer); |
| 68 | struct uid_info u; |
| 69 | bool refresh_uid = false; |
| 70 | |
| 71 | while (ss >> u.uid) { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 72 | ss >> u.io[FOREGROUND].rchar >> u.io[FOREGROUND].wchar |
| 73 | >> u.io[FOREGROUND].read_bytes >> u.io[FOREGROUND].write_bytes |
| 74 | >> u.io[BACKGROUND].rchar >> u.io[BACKGROUND].wchar |
| 75 | >> u.io[BACKGROUND].read_bytes >> u.io[BACKGROUND].write_bytes; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 76 | |
| 77 | if (!ss.good()) { |
| 78 | ss.clear(std::ios_base::badbit); |
| 79 | break; |
| 80 | } |
| 81 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 82 | if (last_uid_io_stats.find(u.uid) == last_uid_io_stats.end()) { |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 83 | refresh_uid = true; |
| 84 | u.name = std::to_string(u.uid); |
| 85 | } else { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 86 | u.name = last_uid_io_stats[u.uid].name; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 87 | } |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 88 | uid_io_stats[u.uid] = u; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | if (!ss.eof() || ss.bad()) { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 92 | uid_io_stats.clear(); |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 93 | LOG_TO(SYSTEM, ERROR) << "read UID IO stats failed"; |
| 94 | } |
| 95 | |
| 96 | if (refresh_uid) { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 97 | packagelist_parse(packagelist_parse_cb, &uid_io_stats); |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 98 | } |
| 99 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 100 | return uid_io_stats; |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 101 | } |
| 102 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 103 | static const int MAX_UID_RECORDS_SIZE = 1000 * 48; // 1000 uids in 48 hours |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 104 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 105 | static inline int records_size( |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 106 | const std::map<uint64_t, struct uid_records>& curr_records) |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 107 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 108 | int count = 0; |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 109 | for (auto const& it : curr_records) { |
| 110 | count += it.second.entries.size(); |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 111 | } |
| 112 | return count; |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 113 | } |
| 114 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 115 | static struct uid_io_usage zero_io_usage; |
| 116 | |
| 117 | void uid_monitor::add_records_locked(uint64_t curr_ts) |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 118 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 119 | // remove records more than 5 days old |
| 120 | if (curr_ts > 5 * DAY_TO_SEC) { |
| 121 | auto it = records.lower_bound(curr_ts - 5 * DAY_TO_SEC); |
| 122 | records.erase(records.begin(), it); |
Jin Qian | 9cdfdd3 | 2017-01-31 17:33:20 -0800 | [diff] [blame] | 123 | } |
| 124 | |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 125 | struct uid_records new_records; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 126 | for (const auto& p : curr_io_stats) { |
| 127 | struct uid_record record = {}; |
| 128 | record.name = p.first; |
| 129 | record.ios = p.second; |
| 130 | if (memcmp(&record.ios, &zero_io_usage, sizeof(struct uid_io_usage))) { |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 131 | new_records.entries.push_back(record); |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 132 | } |
Jin Qian | 9cdfdd3 | 2017-01-31 17:33:20 -0800 | [diff] [blame] | 133 | } |
Jin Qian | 9cdfdd3 | 2017-01-31 17:33:20 -0800 | [diff] [blame] | 134 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 135 | curr_io_stats.clear(); |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 136 | new_records.start_ts = start_ts; |
| 137 | start_ts = curr_ts; |
Jin Qian | 9cdfdd3 | 2017-01-31 17:33:20 -0800 | [diff] [blame] | 138 | |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 139 | if (new_records.entries.empty()) |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 140 | return; |
| 141 | |
| 142 | // make some room for new records |
| 143 | int overflow = records_size(records) + |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 144 | new_records.entries.size() - MAX_UID_RECORDS_SIZE; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 145 | while (overflow > 0 && records.size() > 0) { |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 146 | auto del_it = records.begin(); |
| 147 | overflow -= del_it->second.entries.size(); |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 148 | records.erase(records.begin()); |
| 149 | } |
| 150 | |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 151 | records[curr_ts] = new_records; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 152 | } |
| 153 | |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 154 | std::map<uint64_t, struct uid_records> uid_monitor::dump( |
Jin Qian | dd41d6b | 2017-02-10 17:23:16 -0800 | [diff] [blame] | 155 | double hours, uint64_t threshold, bool force_report) |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 156 | { |
Jin Qian | 1275b1b | 2017-02-06 14:02:50 -0800 | [diff] [blame] | 157 | if (force_report) { |
| 158 | report(); |
| 159 | } |
| 160 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 161 | std::unique_ptr<lock_t> lock(new lock_t(&um_lock)); |
| 162 | |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 163 | std::map<uint64_t, struct uid_records> dump_records; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 164 | uint64_t first_ts = 0; |
| 165 | |
| 166 | if (hours != 0) { |
Jin Qian | dd41d6b | 2017-02-10 17:23:16 -0800 | [diff] [blame] | 167 | first_ts = time(NULL) - hours * HOUR_TO_SEC; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 168 | } |
| 169 | |
Jin Qian | e5ea17c | 2017-02-10 10:50:03 -0800 | [diff] [blame] | 170 | for (auto it = records.lower_bound(first_ts); it != records.end(); ++it) { |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 171 | const std::vector<struct uid_record>& recs = it->second.entries; |
| 172 | struct uid_records filtered; |
Jin Qian | e5ea17c | 2017-02-10 10:50:03 -0800 | [diff] [blame] | 173 | |
| 174 | for (const auto& rec : recs) { |
| 175 | if (rec.ios.bytes[READ][FOREGROUND][CHARGER_ON] + |
| 176 | rec.ios.bytes[READ][FOREGROUND][CHARGER_OFF] + |
| 177 | rec.ios.bytes[READ][BACKGROUND][CHARGER_ON] + |
| 178 | rec.ios.bytes[READ][BACKGROUND][CHARGER_OFF] + |
| 179 | rec.ios.bytes[WRITE][FOREGROUND][CHARGER_ON] + |
| 180 | rec.ios.bytes[WRITE][FOREGROUND][CHARGER_OFF] + |
| 181 | rec.ios.bytes[WRITE][BACKGROUND][CHARGER_ON] + |
| 182 | rec.ios.bytes[WRITE][BACKGROUND][CHARGER_OFF] > threshold) { |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 183 | filtered.entries.push_back(rec); |
Jin Qian | e5ea17c | 2017-02-10 10:50:03 -0800 | [diff] [blame] | 184 | } |
| 185 | } |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 186 | |
| 187 | if (filtered.entries.empty()) |
| 188 | continue; |
| 189 | |
| 190 | filtered.start_ts = it->second.start_ts; |
Jin Qian | e5ea17c | 2017-02-10 10:50:03 -0800 | [diff] [blame] | 191 | dump_records.insert( |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 192 | std::pair<uint64_t, struct uid_records>(it->first, filtered)); |
Jin Qian | e5ea17c | 2017-02-10 10:50:03 -0800 | [diff] [blame] | 193 | } |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 194 | |
| 195 | return dump_records; |
| 196 | } |
| 197 | |
| 198 | void uid_monitor::update_curr_io_stats_locked() |
| 199 | { |
| 200 | std::unordered_map<uint32_t, struct uid_info> uid_io_stats = |
| 201 | get_uid_io_stats_locked(); |
| 202 | if (uid_io_stats.empty()) { |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | for (const auto& it : uid_io_stats) { |
| 207 | const struct uid_info& uid = it.second; |
| 208 | |
| 209 | if (curr_io_stats.find(uid.name) == curr_io_stats.end()) { |
| 210 | curr_io_stats[uid.name] = {}; |
| 211 | } |
| 212 | |
| 213 | struct uid_io_usage& usage = curr_io_stats[uid.name]; |
Jin Qian | baff640 | 2017-02-16 18:34:31 -0800 | [diff] [blame] | 214 | int64_t fg_rd_delta = uid.io[FOREGROUND].read_bytes - |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 215 | last_uid_io_stats[uid.uid].io[FOREGROUND].read_bytes; |
Jin Qian | baff640 | 2017-02-16 18:34:31 -0800 | [diff] [blame] | 216 | int64_t bg_rd_delta = uid.io[BACKGROUND].read_bytes - |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 217 | last_uid_io_stats[uid.uid].io[BACKGROUND].read_bytes; |
Jin Qian | baff640 | 2017-02-16 18:34:31 -0800 | [diff] [blame] | 218 | int64_t fg_wr_delta = uid.io[FOREGROUND].write_bytes - |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 219 | last_uid_io_stats[uid.uid].io[FOREGROUND].write_bytes; |
Jin Qian | baff640 | 2017-02-16 18:34:31 -0800 | [diff] [blame] | 220 | int64_t bg_wr_delta = uid.io[BACKGROUND].write_bytes - |
| 221 | last_uid_io_stats[uid.uid].io[BACKGROUND].write_bytes; |
| 222 | |
| 223 | usage.bytes[READ][FOREGROUND][charger_stat] += |
| 224 | (fg_rd_delta < 0) ? uid.io[FOREGROUND].read_bytes : fg_rd_delta; |
| 225 | usage.bytes[READ][BACKGROUND][charger_stat] += |
| 226 | (bg_rd_delta < 0) ? uid.io[BACKGROUND].read_bytes : bg_rd_delta; |
| 227 | usage.bytes[WRITE][FOREGROUND][charger_stat] += |
| 228 | (fg_wr_delta < 0) ? uid.io[FOREGROUND].write_bytes : fg_wr_delta; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 229 | usage.bytes[WRITE][BACKGROUND][charger_stat] += |
Jin Qian | baff640 | 2017-02-16 18:34:31 -0800 | [diff] [blame] | 230 | (bg_wr_delta < 0) ? uid.io[BACKGROUND].write_bytes : bg_wr_delta; |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | last_uid_io_stats = uid_io_stats; |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 234 | } |
| 235 | |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 236 | void uid_monitor::report() |
| 237 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 238 | std::unique_ptr<lock_t> lock(new lock_t(&um_lock)); |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 239 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 240 | update_curr_io_stats_locked(); |
| 241 | add_records_locked(time(NULL)); |
| 242 | } |
| 243 | |
| 244 | void uid_monitor::set_charger_state(charger_stat_t stat) |
| 245 | { |
| 246 | std::unique_ptr<lock_t> lock(new lock_t(&um_lock)); |
| 247 | |
| 248 | if (charger_stat == stat) { |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 249 | return; |
| 250 | } |
| 251 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 252 | update_curr_io_stats_locked(); |
| 253 | charger_stat = stat; |
| 254 | } |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 255 | |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 256 | void uid_monitor::init(charger_stat_t stat) |
| 257 | { |
| 258 | charger_stat = stat; |
Jin Qian | 8157775 | 2017-02-21 12:09:39 -0800 | [diff] [blame^] | 259 | start_ts = time(NULL); |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 260 | last_uid_io_stats = get_uid_io_stats(); |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | uid_monitor::uid_monitor() |
| 264 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 265 | sem_init(&um_lock, 0, 1); |
Jin Qian | a2e5bd1 | 2017-01-24 16:23:13 -0800 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | uid_monitor::~uid_monitor() |
| 269 | { |
Jin Qian | 5b962c6 | 2017-01-30 14:48:38 -0800 | [diff] [blame] | 270 | sem_destroy(&um_lock); |
Jin Qian | bcd6e3b | 2016-12-28 15:43:51 -0800 | [diff] [blame] | 271 | } |