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1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "metrics_daemon.h" | 5 #include "metrics_daemon.h" |
6 | 6 |
7 #include <fcntl.h> | |
7 #include <string.h> | 8 #include <string.h> |
8 | 9 |
9 #include <base/file_util.h> | 10 #include <base/file_util.h> |
10 #include <base/logging.h> | 11 #include <base/logging.h> |
11 #include <dbus/dbus-glib-lowlevel.h> | 12 #include <dbus/dbus-glib-lowlevel.h> |
12 | 13 |
13 #include "counter.h" | 14 #include "counter.h" |
14 | 15 |
15 using base::Time; | 16 using base::Time; |
16 using base::TimeDelta; | 17 using base::TimeDelta; |
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77 const char MetricsDaemon::kMetricUncleanShutdownsWeeklyName[] = | 78 const char MetricsDaemon::kMetricUncleanShutdownsWeeklyName[] = |
78 "Logging.UncleanShutdownsWeekly"; | 79 "Logging.UncleanShutdownsWeekly"; |
79 const char MetricsDaemon::kMetricUserCrashesDailyName[] = | 80 const char MetricsDaemon::kMetricUserCrashesDailyName[] = |
80 "Logging.UserCrashesDaily"; | 81 "Logging.UserCrashesDaily"; |
81 const char MetricsDaemon::kMetricUserCrashesWeeklyName[] = | 82 const char MetricsDaemon::kMetricUserCrashesWeeklyName[] = |
82 "Logging.UserCrashesWeekly"; | 83 "Logging.UserCrashesWeekly"; |
83 const char MetricsDaemon::kMetricCrashFrequencyMin = 1; | 84 const char MetricsDaemon::kMetricCrashFrequencyMin = 1; |
84 const char MetricsDaemon::kMetricCrashFrequencyMax = 100; | 85 const char MetricsDaemon::kMetricCrashFrequencyMax = 100; |
85 const char MetricsDaemon::kMetricCrashFrequencyBuckets = 50; | 86 const char MetricsDaemon::kMetricCrashFrequencyBuckets = 50; |
86 | 87 |
88 // disk stats metrics | |
89 | |
90 // The {Read,Write}Sectors numbers are in sectors/second. | |
91 // A sector is usually 512 bytes. | |
92 | |
93 const char MetricsDaemon::kMetricReadSectorsLongName[] = | |
94 "Filesystem.ReadSectorsLong"; | |
95 const char MetricsDaemon::kMetricWriteSectorsLongName[] = | |
96 "Filesystem.WriteSectorsLong"; | |
97 const char MetricsDaemon::kMetricReadSectorsShortName[] = | |
98 "Filesystem.ReadSectorsShort"; | |
99 const char MetricsDaemon::kMetricWriteSectorsShortName[] = | |
100 "Filesystem.WriteSectorsShort"; | |
101 | |
102 const int MetricsDaemon::kMetricDiskStatsShortInterval = 1; // seconds | |
103 const int MetricsDaemon::kMetricDiskStatsLongInterval = 30; // seconds | |
104 | |
105 // Assume a max rate of 250Mb/s for reads (worse for writes) and 512 byte | |
106 // sectors. | |
107 const int MetricsDaemon::kMetricSectorsIOMax = 500000; // sectors/second | |
108 const int MetricsDaemon::kMetricSectorsBuckets = 50; // buckets | |
109 | |
87 // persistent metrics path | 110 // persistent metrics path |
88 const char MetricsDaemon::kMetricsPath[] = "/var/log/metrics"; | 111 const char MetricsDaemon::kMetricsPath[] = "/var/log/metrics"; |
89 | 112 |
90 | 113 |
91 // static | 114 // static |
92 const char* MetricsDaemon::kDBusMatches_[] = { | 115 const char* MetricsDaemon::kDBusMatches_[] = { |
93 "type='signal'," | 116 "type='signal'," |
94 "interface='" DBUS_IFACE_CRASH_REPORTER "'," | 117 "interface='" DBUS_IFACE_CRASH_REPORTER "'," |
95 "path='/'," | 118 "path='/'," |
96 "member='UserCrash'", | 119 "member='UserCrash'", |
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111 #define STATE(name, capname) #name, | 134 #define STATE(name, capname) #name, |
112 #include "power_states.h" | 135 #include "power_states.h" |
113 }; | 136 }; |
114 | 137 |
115 // static | 138 // static |
116 const char* MetricsDaemon::kSessionStates_[] = { | 139 const char* MetricsDaemon::kSessionStates_[] = { |
117 #define STATE(name, capname) #name, | 140 #define STATE(name, capname) #name, |
118 #include "session_states.h" | 141 #include "session_states.h" |
119 }; | 142 }; |
120 | 143 |
121 MetricsDaemon::MetricsDaemon() | 144 MetricsDaemon::MetricsDaemon() |
petkov
2011/02/14 23:39:16
initialize diskstats_path_ to NULL here.
Luigi Semenzato
2011/02/15 17:45:47
Thanks.
| |
122 : power_state_(kUnknownPowerState), | 145 : power_state_(kUnknownPowerState), |
123 session_state_(kUnknownSessionState), | 146 session_state_(kUnknownSessionState), |
124 user_active_(false), | 147 user_active_(false), |
125 usemon_interval_(0), | 148 usemon_interval_(0), |
126 usemon_source_(NULL) {} | 149 usemon_source_(NULL) {} |
127 | 150 |
128 MetricsDaemon::~MetricsDaemon() { | 151 MetricsDaemon::~MetricsDaemon() { |
129 DeleteFrequencyCounters(); | 152 DeleteFrequencyCounters(); |
130 } | 153 } |
131 | 154 |
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183 time_t cycle_duration = strstr(histogram_name, "Weekly") != NULL ? | 206 time_t cycle_duration = strstr(histogram_name, "Weekly") != NULL ? |
184 chromeos_metrics::kSecondsPerWeek : | 207 chromeos_metrics::kSecondsPerWeek : |
185 chromeos_metrics::kSecondsPerDay; | 208 chromeos_metrics::kSecondsPerDay; |
186 new_counter->Init( | 209 new_counter->Init( |
187 static_cast<chromeos_metrics::TaggedCounterInterface*>( | 210 static_cast<chromeos_metrics::TaggedCounterInterface*>( |
188 reporter.release()), | 211 reporter.release()), |
189 cycle_duration); | 212 cycle_duration); |
190 frequency_counters_[histogram_name] = new_counter.release(); | 213 frequency_counters_[histogram_name] = new_counter.release(); |
191 } | 214 } |
192 | 215 |
193 void MetricsDaemon::Init(bool testing, MetricsLibraryInterface* metrics_lib) { | 216 void MetricsDaemon::Init(bool testing, MetricsLibraryInterface* metrics_lib, |
217 const char* diskstats_path) { | |
194 testing_ = testing; | 218 testing_ = testing; |
195 DCHECK(metrics_lib != NULL); | 219 DCHECK(metrics_lib != NULL); |
196 metrics_lib_ = metrics_lib; | 220 metrics_lib_ = metrics_lib; |
197 chromeos_metrics::TaggedCounterReporter:: | 221 chromeos_metrics::TaggedCounterReporter:: |
198 SetMetricsLibraryInterface(metrics_lib); | 222 SetMetricsLibraryInterface(metrics_lib); |
199 | 223 |
200 static const char kDailyUseRecordFile[] = "/var/log/metrics/daily-usage"; | 224 static const char kDailyUseRecordFile[] = "/var/log/metrics/daily-usage"; |
201 daily_use_.reset(new chromeos_metrics::TaggedCounter()); | 225 daily_use_.reset(new chromeos_metrics::TaggedCounter()); |
202 daily_use_->Init(kDailyUseRecordFile, &ReportDailyUse, this); | 226 daily_use_->Init(kDailyUseRecordFile, &ReportDailyUse, this); |
203 | 227 |
204 ConfigureCrashIntervalReporter(kMetricKernelCrashIntervalName, | 228 ConfigureCrashIntervalReporter(kMetricKernelCrashIntervalName, |
205 &kernel_crash_interval_); | 229 &kernel_crash_interval_); |
206 ConfigureCrashIntervalReporter(kMetricUncleanShutdownIntervalName, | 230 ConfigureCrashIntervalReporter(kMetricUncleanShutdownIntervalName, |
207 &unclean_shutdown_interval_); | 231 &unclean_shutdown_interval_); |
208 ConfigureCrashIntervalReporter(kMetricUserCrashIntervalName, | 232 ConfigureCrashIntervalReporter(kMetricUserCrashIntervalName, |
209 &user_crash_interval_); | 233 &user_crash_interval_); |
210 | 234 |
211 DeleteFrequencyCounters(); | 235 DeleteFrequencyCounters(); |
212 ConfigureCrashFrequencyReporter(kMetricAnyCrashesDailyName); | 236 ConfigureCrashFrequencyReporter(kMetricAnyCrashesDailyName); |
213 ConfigureCrashFrequencyReporter(kMetricAnyCrashesWeeklyName); | 237 ConfigureCrashFrequencyReporter(kMetricAnyCrashesWeeklyName); |
214 ConfigureCrashFrequencyReporter(kMetricKernelCrashesDailyName); | 238 ConfigureCrashFrequencyReporter(kMetricKernelCrashesDailyName); |
215 ConfigureCrashFrequencyReporter(kMetricKernelCrashesWeeklyName); | 239 ConfigureCrashFrequencyReporter(kMetricKernelCrashesWeeklyName); |
216 ConfigureCrashFrequencyReporter(kMetricUncleanShutdownsDailyName); | 240 ConfigureCrashFrequencyReporter(kMetricUncleanShutdownsDailyName); |
217 ConfigureCrashFrequencyReporter(kMetricUncleanShutdownsWeeklyName); | 241 ConfigureCrashFrequencyReporter(kMetricUncleanShutdownsWeeklyName); |
218 ConfigureCrashFrequencyReporter(kMetricUserCrashesDailyName); | 242 ConfigureCrashFrequencyReporter(kMetricUserCrashesDailyName); |
219 ConfigureCrashFrequencyReporter(kMetricUserCrashesWeeklyName); | 243 ConfigureCrashFrequencyReporter(kMetricUserCrashesWeeklyName); |
220 | 244 |
245 diskstats_path_ = diskstats_path; | |
246 DiskStatsReporterInit(); | |
247 | |
221 // Don't setup D-Bus and GLib in test mode. | 248 // Don't setup D-Bus and GLib in test mode. |
222 if (testing) | 249 if (testing) |
223 return; | 250 return; |
224 | 251 |
225 g_thread_init(NULL); | 252 g_thread_init(NULL); |
226 g_type_init(); | 253 g_type_init(); |
227 dbus_g_thread_init(); | 254 dbus_g_thread_init(); |
228 | 255 |
229 DBusError error; | 256 DBusError error; |
230 dbus_error_init(&error); | 257 dbus_error_init(&error); |
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487 // If there's a use monitor scheduled already, destroys it. | 514 // If there's a use monitor scheduled already, destroys it. |
488 if (usemon_source_ == NULL) | 515 if (usemon_source_ == NULL) |
489 return; | 516 return; |
490 | 517 |
491 DLOG(INFO) << "destroying use monitor"; | 518 DLOG(INFO) << "destroying use monitor"; |
492 g_source_destroy(usemon_source_); | 519 g_source_destroy(usemon_source_); |
493 usemon_source_ = NULL; | 520 usemon_source_ = NULL; |
494 usemon_interval_ = 0; | 521 usemon_interval_ = 0; |
495 } | 522 } |
496 | 523 |
524 void MetricsDaemon::DiskStatsReporterInit() { | |
525 DiskStatsReadStats(&read_sectors_, &write_sectors_); | |
526 // The first time around just run the long stat, so we don't delay boot. | |
527 diskstats_state_ = kDiskStatsLong; | |
528 ScheduleDiskStatsCallback(kMetricDiskStatsLongInterval); | |
529 } | |
530 | |
531 void MetricsDaemon::ScheduleDiskStatsCallback(int wait) { | |
532 if (testing_) { | |
533 return; | |
534 } | |
535 g_timeout_add_seconds(wait, DiskStatsCallbackStatic, this); | |
536 } | |
537 | |
538 void MetricsDaemon::DiskStatsReadStats(long int* read_sectors, | |
539 long int* write_sectors) { | |
540 int nchars; | |
541 int nitems; | |
542 char line[200]; | |
543 int file = HANDLE_EINTR(open(diskstats_path_, O_RDONLY)); | |
544 if (file < 0) { | |
545 PLOG(WARNING) << "cannot open " << diskstats_path_; | |
546 return; | |
547 } | |
548 nchars = HANDLE_EINTR(read(file, line, sizeof(line))); | |
549 if (nchars < 0) { | |
550 PLOG(WARNING) << "cannot read from " << diskstats_path_; | |
551 } else { | |
552 LOG_IF(WARNING, nchars == sizeof(line)) << "line too long in " | |
553 << diskstats_path_; | |
554 line[nchars] = '\0'; | |
555 nitems = sscanf(line, "%*d %*d %ld %*d %*d %*d %ld", | |
556 read_sectors, write_sectors); | |
557 LOG_IF(WARNING, nitems != 2) << "found " << nitems << " items in " | |
558 << diskstats_path_ << ", expected 2"; | |
559 } | |
560 HANDLE_EINTR(close(file)); | |
561 } | |
562 | |
563 // static | |
564 gboolean MetricsDaemon::DiskStatsCallbackStatic(void* handle) { | |
565 (static_cast<MetricsDaemon*>(handle))->DiskStatsCallback(); | |
566 return false; // one-time callback | |
567 } | |
568 | |
569 void MetricsDaemon::DiskStatsCallback() { | |
570 long int read_sectors_now, write_sectors_now; | |
571 DiskStatsReadStats(&read_sectors_now, &write_sectors_now); | |
572 | |
573 switch (diskstats_state_) { | |
574 case kDiskStatsShort: | |
575 SendMetric(kMetricReadSectorsShortName, | |
576 (int) (read_sectors_now - read_sectors_) / | |
577 kMetricDiskStatsShortInterval, | |
578 0, | |
petkov
2011/02/14 23:39:16
did you double check that it's OK for this to be 0
Luigi Semenzato
2011/02/15 17:45:47
No, it should be 1. Fixing.
| |
579 kMetricSectorsIOMax, | |
580 kMetricSectorsBuckets); | |
581 SendMetric(kMetricWriteSectorsShortName, | |
582 (int) (write_sectors_now - write_sectors_) / | |
583 kMetricDiskStatsShortInterval, | |
584 0, | |
585 kMetricSectorsIOMax, | |
586 kMetricSectorsBuckets); | |
587 // Schedule long callback. | |
588 diskstats_state_ = kDiskStatsLong; | |
589 ScheduleDiskStatsCallback(kMetricDiskStatsLongInterval - | |
590 kMetricDiskStatsShortInterval); | |
591 break; | |
592 case kDiskStatsLong: | |
593 SendMetric(kMetricReadSectorsLongName, | |
594 (int) (read_sectors_now - read_sectors_) / | |
595 kMetricDiskStatsLongInterval, | |
596 1, | |
597 kMetricSectorsIOMax, | |
598 kMetricSectorsBuckets); | |
599 SendMetric(kMetricWriteSectorsLongName, | |
600 (int) (write_sectors_now - write_sectors_) / | |
601 kMetricDiskStatsLongInterval, | |
602 1, | |
603 kMetricSectorsIOMax, | |
604 kMetricSectorsBuckets); | |
605 // Reset sector counters | |
606 read_sectors_ = read_sectors_now; | |
607 write_sectors_ = write_sectors_now; | |
608 // Schedule short callback. | |
609 diskstats_state_ = kDiskStatsShort; | |
610 ScheduleDiskStatsCallback(kMetricDiskStatsShortInterval); | |
611 break; | |
612 default: | |
613 LOG(FATAL) << "Invalid disk stats state"; | |
614 } | |
615 } | |
616 | |
497 // static | 617 // static |
498 void MetricsDaemon::ReportDailyUse(void* handle, int tag, int count) { | 618 void MetricsDaemon::ReportDailyUse(void* handle, int tag, int count) { |
499 if (count <= 0) | 619 if (count <= 0) |
500 return; | 620 return; |
501 | 621 |
502 MetricsDaemon* daemon = static_cast<MetricsDaemon*>(handle); | 622 MetricsDaemon* daemon = static_cast<MetricsDaemon*>(handle); |
503 int minutes = (count + kSecondsPerMinute / 2) / kSecondsPerMinute; | 623 int minutes = (count + kSecondsPerMinute / 2) / kSecondsPerMinute; |
504 daemon->SendMetric(kMetricDailyUseTimeName, minutes, | 624 daemon->SendMetric(kMetricDailyUseTimeName, minutes, |
505 kMetricDailyUseTimeMin, | 625 kMetricDailyUseTimeMin, |
506 kMetricDailyUseTimeMax, | 626 kMetricDailyUseTimeMax, |
507 kMetricDailyUseTimeBuckets); | 627 kMetricDailyUseTimeBuckets); |
508 } | 628 } |
509 | 629 |
510 void MetricsDaemon::SendMetric(const string& name, int sample, | 630 void MetricsDaemon::SendMetric(const string& name, int sample, |
511 int min, int max, int nbuckets) { | 631 int min, int max, int nbuckets) { |
512 DLOG(INFO) << "received metric: " << name << " " << sample << " " | 632 DLOG(INFO) << "received metric: " << name << " " << sample << " " |
513 << min << " " << max << " " << nbuckets; | 633 << min << " " << max << " " << nbuckets; |
514 metrics_lib_->SendToUMA(name, sample, min, max, nbuckets); | 634 metrics_lib_->SendToUMA(name, sample, min, max, nbuckets); |
515 } | 635 } |
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