MailJDTourDownloadDocsQualityTestsCoverage

Which source lines and branches the tests execute. Lines 91.5 %, branches 75.0 % (minimum 85 % and 72 %). main @ 399ffe3d · 21 October 2026 · pipeline 7238.

GCC Code Coverage Report

Directory: src/
Coverage: low: ≥ 0% medium: ≥ 75.0% high: ≥ 90.0%
Coverage Exec / Excl / Total
Lines: 97.3% 362 / 0 / 372
Functions: 97.0% 32 / 0 / 33
Branches: 81.3% 436 / 0 / 536
performance/BackgroundPerformanceTracker.cpp
Line Branch Exec Source
1 #include "performance/BackgroundPerformanceTracker.h"
2
3 #include <QApplication>
4 #include <QDir>
5 #include <QEvent>
6 #include <QFile>
7 #include <QFileInfo>
8 #include <QJsonDocument>
9 #include <QJsonObject>
10 #include <QSet>
11 #include <QTimer>
12 #include <QWidget>
13
14 #include <algorithm>
15
16 namespace MailJD::Performance {
17
18 namespace {
19 constexpr auto RowMetric = "realtime.server_to_row.v1";
20 constexpr auto BadgeMetric = "realtime.server_to_badge.v1";
21 constexpr auto NotificationMetric = "realtime.server_to_notification.v1";
22 constexpr auto SettledMetric = "realtime.server_to_settled.v1";
23 constexpr auto AnchorFileName = "realtime-anchor.json";
24 constexpr auto SyncMetric = "sync.total.v1";
25 constexpr auto ThroughputMetric = "sync.items_per_second.v1";
26 constexpr auto MaintenanceMetric = "maintenance.total.v1";
27 constexpr auto ShutdownMetric = "shutdown.input_to_durable_terminal.v1";
28 constexpr auto ContentionBackgroundMetric =
29 "contention.background_throughput.v1";
30 constexpr auto ContentionStallMetric = "contention.event_loop_stall.v1";
31 constexpr auto ContentionBusyMetric = "contention.sqlite_busy.v1";
32 constexpr int EventLoopProbeIntervalMs = 50;
33 constexpr qint64 MaximumAnchorAgeNs = 15LL * 60LL * 1000LL * 1000LL * 1000LL;
34
35 const QSet<QString> AllowedAnchorFields = {
36 QStringLiteral("schema_version"),
37 QStringLiteral("run_id"),
38 QStringLiteral("scenario"),
39 QStringLiteral("server_accepted_monotonic_ns"),
40 QStringLiteral("item_count"),
41 };
42 } // namespace
43
44 3003 BackgroundPerformanceTracker &BackgroundPerformanceTracker::instance() {
45
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 3003 static BackgroundPerformanceTracker tracker;
46 3003 return tracker;
47 }
48
49 25 BackgroundPerformanceTracker::BackgroundPerformanceTracker(QObject *parent)
50
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 25 : QObject(parent) {
51
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 25 m_eventLoopProbe.setTimerType(Qt::PreciseTimer);
52
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 25 m_eventLoopProbe.setInterval(EventLoopProbeIntervalMs);
53 25 connect(&m_eventLoopProbe, &QTimer::timeout, this,
54
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 25 &BackgroundPerformanceTracker::probeEventLoop);
55 25 }
56
57 27 bool BackgroundPerformanceTracker::isRealtimeActive() const {
58
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 77 return PerformanceTrace::instance().isEnabled() &&
59
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 77 PerformanceTrace::instance().selectedScenario().startsWith(
60
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 79 QStringLiteral("REALTIME."));
61 }
62
63 10 void BackgroundPerformanceTracker::ensureEventFilterInstalled() {
64
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 10 if (!m_eventFilterInstalled && qApp) {
65 1 qApp->installEventFilter(this);
66 1 m_eventFilterInstalled = true;
67 }
68 10 }
69
70 3 void BackgroundPerformanceTracker::watchMailViewport(QWidget *viewport) {
71 3 m_mailViewport = viewport;
72
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 3 if (isRealtimeActive())
73 3 ensureEventFilterInstalled();
74 3 }
75
76 3 void BackgroundPerformanceTracker::watchBadgeViewport(QWidget *viewport) {
77 3 m_badgeViewport = viewport;
78
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 3 if (isRealtimeActive())
79 3 ensureEventFilterInstalled();
80 3 }
81
82 28 void BackgroundPerformanceTracker::reset() {
83
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 56 if (m_row.isValid() || m_badge.isValid() || m_notification.isValid() ||
84
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 28 m_settled.isValid())
85 ✗ failAll(Outcome::Cancelled);
86 28 m_scenario.clear();
87 28 m_expectedCount = 0;
88 28 m_fetchedCount = 0;
89 28 m_appendedCount = 0;
90 28 m_notificationCount = 0;
91 28 m_repaintCount = 0;
92 28 m_rowPaintPending = false;
93 28 m_badgePaintPending = false;
94 28 m_rowPainted = false;
95 28 m_badgePainted = false;
96 28 m_notificationAccepted = false;
97 28 m_settleScheduled = false;
98 28 ++m_generation;
99 28 resetBackground();
100 28 }
101
102 1537 bool BackgroundPerformanceTracker::isBackgroundActive() const {
103
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 1537 if (!PerformanceTrace::instance().isEnabled())
104 1496 return false;
105
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 41 const QString selected = PerformanceTrace::instance().selectedScenario();
106
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 140 return selected.startsWith(QStringLiteral("SYNC_MAINT.")) ||
107
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 58 selected.startsWith(QStringLiteral("CONTENTION."));
108 41 }
109
110 1537 bool BackgroundPerformanceTracker::selectedOperationMatches(
111 const QStringList &operations) const {
112
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 1537 if (!isBackgroundActive())
113 1511 return false;
114
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 26 const QString selected = PerformanceTrace::instance().selectedScenario();
115
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 26 return std::any_of(operations.cbegin(), operations.cend(),
116 34 [&selected](const QString &operation) {
117
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 136 return selected.contains(QStringLiteral(".") +
118
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 68 operation +
119
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 136 QStringLiteral("."));
120 26 });
121 26 }
122
123 1537 void BackgroundPerformanceTracker::beginBackground(
124 const QStringList &operations, qint64 startNs, qint64 itemCount,
125 qint64 byteCount) {
126
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 1537 if (!selectedOperationMatches(operations) || m_background.isValid())
127 1522 return;
128
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 15 const QString scenario = PerformanceTrace::instance().selectedScenario();
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 15 const QString operation = scenario.section(QLatin1Char('.'), 1, 1);
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 15 if (scenario.startsWith(QStringLiteral("CONTENTION."))) {
131
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 2 m_backgroundMetric = QString::fromLatin1(ContentionBackgroundMetric);
132
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 13 } else if (operation.startsWith(QStringLiteral("shutdown_"))) {
133
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 1 m_backgroundMetric = QString::fromLatin1(ShutdownMetric);
134
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 35 } else if (operation == QStringLiteral("fts_rebuild") ||
135
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 33 operation == QStringLiteral("fts_incremental") ||
136
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 31 operation == QStringLiteral("predictor_initial") ||
137
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 29 operation == QStringLiteral("predictor_incremental") ||
138
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 27 operation == QStringLiteral("migration") ||
139
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 54 operation == QStringLiteral("wal_checkpoint") ||
140
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 18 operation == QStringLiteral("payload_eviction")) {
141
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 7 m_backgroundMetric = QString::fromLatin1(MaintenanceMetric);
142 } else {
143
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 5 m_backgroundMetric = QString::fromLatin1(SyncMetric);
144 }
145 15 m_backgroundStartedNs =
146
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 15 startNs >= 0 ? startNs : PerformanceTrace::monotonicNowNs();
147 15 m_backgroundItems = 0;
148 15 m_backgroundBytes = 0;
149 15 m_sqliteBusyNs = 0;
150 15 m_maxEventLoopDelayNs = 0;
151 15 m_backgroundClients = 0;
152 15 m_finishedBackgroundClients = 0;
153 15 m_backgroundFailed = false;
154 15 m_backgroundQueueClosed = false;
155
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 30 m_background = PerformanceTrace::instance().startMetric(
156
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 15 scenario, m_backgroundMetric, m_backgroundStartedNs, itemCount,
157 15 byteCount);
158
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 30 m_background.startPhase(QStringLiteral("background_work"));
159
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 15 if (scenario.startsWith(QStringLiteral("SYNC_MAINT."))) {
160 65 for (const QString &metric : {QString::fromLatin1(SyncMetric),
161 13 QString::fromLatin1(ThroughputMetric),
162 13 QString::fromLatin1(MaintenanceMetric),
163
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 130 QString::fromLatin1(ShutdownMetric)}) {
164
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 106 if (metric == m_backgroundMetric ||
165
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 106 (m_backgroundMetric == QString::fromLatin1(SyncMetric) &&
166
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 67 metric == QString::fromLatin1(ThroughputMetric)))
167 18 continue;
168
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 68 PerformanceTrace::instance().markProcessEvent(
169
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 68 scenario, metric + QStringLiteral(".inapplicable"));
170 65 }
171 }
172 15 m_probeExpectedNs = m_backgroundStartedNs +
173 static_cast<qint64>(EventLoopProbeIntervalMs) * 1000000;
174
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 15 m_eventLoopProbe.start();
175 15 }
176
177 2194 void BackgroundPerformanceTracker::backgroundPhaseStarted(
178 const QString &phase) {
179
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 2194 if (m_background.isValid())
180 3 m_background.startPhase(phase);
181 2194 }
182
183 1432 void BackgroundPerformanceTracker::backgroundPhaseFinished(const QString &phase,
184 qint64 itemCount,
185 qint64 byteCount) {
186
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 1432 if (m_background.isValid())
187 3 m_background.endPhase(phase, itemCount, byteCount);
188 1432 }
189
190 775 void BackgroundPerformanceTracker::addBackgroundWork(qint64 itemCount,
191 qint64 byteCount) {
192
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 775 if (!m_background.isValid())
193 764 return;
194 11 m_backgroundItems += std::max<qint64>(0, itemCount);
195 11 m_backgroundBytes += std::max<qint64>(0, byteCount);
196 }
197
198 4 void BackgroundPerformanceTracker::backgroundClientQueued() {
199
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 4 if (m_background.isValid() && !m_backgroundQueueClosed)
200 2 ++m_backgroundClients;
201 4 }
202
203 3 void BackgroundPerformanceTracker::backgroundQueueClosed() {
204
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 3 if (!m_background.isValid())
205 1 return;
206 2 m_backgroundQueueClosed = true;
207
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 2 if (m_backgroundClients == 0) {
208
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 1 backgroundPhaseFinished(QStringLiteral("dav_sync"));
209 1 backgroundFinished(false);
210 }
211 }
212
213 2 void BackgroundPerformanceTracker::backgroundClientFailed() {
214
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 2 if (m_background.isValid())
215 1 m_backgroundFailed = true;
216 2 }
217
218 4 void BackgroundPerformanceTracker::backgroundClientFinished() {
219
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 4 if (!m_background.isValid())
220 2 return;
221 2 ++m_finishedBackgroundClients;
222
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 2 if (m_backgroundQueueClosed &&
223
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 2 m_finishedBackgroundClients >= m_backgroundClients) {
224
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 1 backgroundPhaseFinished(QStringLiteral("dav_sync"));
225 1 backgroundFinished(!m_backgroundFailed);
226 }
227 }
228
229 2 void BackgroundPerformanceTracker::addSqliteBusyTime(qint64 durationNs) {
230
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 2 if (m_background.isValid())
231 2 m_sqliteBusyNs += std::max<qint64>(0, durationNs);
232 2 }
233
234 1 void BackgroundPerformanceTracker::probeEventLoop() {
235
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 1 if (!m_background.isValid()) {
236 ✗ m_eventLoopProbe.stop();
237 ✗ return;
238 }
239 1 const qint64 now = PerformanceTrace::monotonicNowNs();
240 3 m_maxEventLoopDelayNs = std::max(
241 1 m_maxEventLoopDelayNs, std::max<qint64>(0, now - m_probeExpectedNs));
242 1 m_probeExpectedNs =
243 1 now + static_cast<qint64>(EventLoopProbeIntervalMs) * 1000000;
244 }
245
246 769 void BackgroundPerformanceTracker::backgroundFinished(bool success) {
247
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 769 if (!m_background.isValid())
248 755 return;
249
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 14 m_eventLoopProbe.stop();
250
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 14 const QString scenario = PerformanceTrace::instance().selectedScenario();
251 14 const qint64 totalNs = std::max<qint64>(
252
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 14 0, PerformanceTrace::monotonicNowNs() - m_backgroundStartedNs);
253
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 28 m_background.endPhase(QStringLiteral("background_work"), m_backgroundItems,
254 m_backgroundBytes);
255
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 54 if (scenario.startsWith(QStringLiteral("SYNC_MAINT.")) &&
256
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 26 m_backgroundMetric == QString::fromLatin1(SyncMetric)) {
257
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 8 PerformanceTrace::instance().markProcessEvent(
258
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 8 scenario, QString::fromLatin1(ThroughputMetric), -1, totalNs,
259 m_backgroundItems, m_backgroundBytes);
260 }
261
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 14 if (scenario.startsWith(QStringLiteral("CONTENTION."))) {
262
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 4 PerformanceTrace::instance().markProcessEvent(
263
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 4 scenario, QString::fromLatin1(ContentionStallMetric), -1,
264 m_maxEventLoopDelayNs);
265
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 4 PerformanceTrace::instance().markProcessEvent(
266
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 4 scenario, QString::fromLatin1(ContentionBusyMetric), -1,
267 m_sqliteBusyNs);
268 }
269
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 14 m_background.finish(success ? Outcome::Success : Outcome::Failed,
270 m_backgroundItems, m_backgroundBytes);
271 14 m_background = {};
272 14 m_backgroundMetric.clear();
273 14 m_backgroundStartedNs = 0;
274 14 }
275
276 28 void BackgroundPerformanceTracker::resetBackground() {
277 28 m_eventLoopProbe.stop();
278
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 28 if (m_background.isValid())
279 1 m_background.finish(Outcome::Cancelled, m_backgroundItems,
280 m_backgroundBytes);
281 28 m_background = {};
282 28 m_backgroundMetric.clear();
283 28 m_backgroundStartedNs = 0;
284 28 m_backgroundItems = 0;
285 28 m_backgroundBytes = 0;
286 28 m_sqliteBusyNs = 0;
287 28 m_probeExpectedNs = 0;
288 28 m_maxEventLoopDelayNs = 0;
289 28 m_backgroundClients = 0;
290 28 m_finishedBackgroundClients = 0;
291 28 m_backgroundFailed = false;
292 28 m_backgroundQueueClosed = false;
293 28 }
294
295 13 bool BackgroundPerformanceTracker::beginFromAnchor(int observedCount) {
296
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 13 auto &trace = PerformanceTrace::instance();
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 13 const QFileInfo traceInfo(trace.outputPath());
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 13 QFile file(traceInfo.dir().filePath(QString::fromLatin1(AnchorFileName)));
299
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 13 if (!file.open(QIODevice::ReadOnly)) {
300
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 1 trace.markProcessEvent(trace.selectedScenario(),
301 2 QStringLiteral("realtime.anchor_missing"));
302 1 return false;
303 }
304 12 QJsonParseError parseError;
305 const QJsonDocument document =
306
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 12 QJsonDocument::fromJson(file.readAll(), &parseError);
307
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 12 if (parseError.error != QJsonParseError::NoError || !document.isObject()) {
308
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 2 trace.markProcessEvent(trace.selectedScenario(),
309 4 QStringLiteral("realtime.anchor_invalid"));
310 2 return false;
311 }
312
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 10 const QJsonObject object = document.object();
313
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 56 for (const QString &key : object.keys()) {
314
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 47 if (!AllowedAnchorFields.contains(key)) {
315
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 1 trace.markProcessEvent(trace.selectedScenario(),
316 2 QStringLiteral("realtime.anchor_unsafe"));
317 1 return false;
318 }
319 10 }
320 const qint64 acceptedNs =
321
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 18 object.value(QStringLiteral("server_accepted_monotonic_ns"))
322
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 18 .toVariant()
323
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 9 .toLongLong();
324
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 9 const int itemCount = object.value(QStringLiteral("item_count")).toInt(-1);
325
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 9 const qint64 now = PerformanceTrace::monotonicNowNs();
326 const bool valid =
327
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 34 object.value(QStringLiteral("schema_version")).toInt() == 1 &&
328
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 17 object.value(QStringLiteral("run_id")).toString() ==
329
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 31 traceInfo.dir().dirName() &&
330
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 16 object.value(QStringLiteral("scenario")).toString() ==
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 22 trace.selectedScenario() &&
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 5 acceptedNs > 0 && acceptedNs <= now &&
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 26 now - acceptedNs <= MaximumAnchorAgeNs && itemCount > 0 &&
334
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 9 itemCount == observedCount;
335
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 9 if (!valid) {
336
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 8 trace.markProcessEvent(trace.selectedScenario(),
337 16 QStringLiteral("realtime.anchor_mismatch"));
338 8 return false;
339 }
340
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 1 beginRealtimeDelivery(acceptedNs, itemCount);
341 1 return true;
342 13 }
343
344 14 void BackgroundPerformanceTracker::idleDeliveryObserved(int newCount) {
345
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 14 if (!isRealtimeActive())
346 1 return;
347
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 26 if (m_row.isValid() || m_badge.isValid() || m_notification.isValid() ||
348
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 13 m_settled.isValid()) {
349 ✗ failAll(Outcome::Cancelled);
350 }
351
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 13 if (!beginFromAnchor(newCount))
352 12 return;
353
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 2 m_row.mark(QStringLiteral("client_idle_observed"), newCount);
354
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 2 m_badge.mark(QStringLiteral("client_idle_observed"), newCount);
355
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 2 m_notification.mark(QStringLiteral("client_idle_observed"), newCount);
356
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 2 m_settled.mark(QStringLiteral("client_idle_observed"), newCount);
357 }
358
359 7 void BackgroundPerformanceTracker::beginRealtimeDelivery(
360 qint64 serverAcceptedNs, int expectedCount) {
361
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 7 if (!isRealtimeActive() || serverAcceptedNs <= 0 || expectedCount <= 0)
362 3 return;
363 4 reset();
364 4 ensureEventFilterInstalled();
365
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 4 m_scenario = PerformanceTrace::instance().selectedScenario();
366 4 m_expectedCount = expectedCount;
367
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 8 m_row = PerformanceTrace::instance().startMetric(
368
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 8 m_scenario, QString::fromLatin1(RowMetric), serverAcceptedNs,
369 4 expectedCount);
370
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 8 m_badge = PerformanceTrace::instance().startMetric(
371
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 8 m_scenario, QString::fromLatin1(BadgeMetric), serverAcceptedNs,
372 4 expectedCount);
373
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 8 m_notification = PerformanceTrace::instance().startMetric(
374
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 8 m_scenario, QString::fromLatin1(NotificationMetric), serverAcceptedNs,
375 4 expectedCount);
376
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 8 m_settled = PerformanceTrace::instance().startMetric(
377
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 8 m_scenario, QString::fromLatin1(SettledMetric), serverAcceptedNs,
378 4 expectedCount);
379 4 for (const Operation &operation :
380
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 40 {m_row, m_badge, m_notification, m_settled}) {
381
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 32 operation.mark(QStringLiteral("server_accepted"), expectedCount);
382
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 32 operation.startPhase(QStringLiteral("protocol_and_header_fetch"),
383 expectedCount);
384 20 }
385 }
386
387 20 void BackgroundPerformanceTracker::headersCommitted(int fetchedCount,
388 int appendedCount) {
389
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 20 if (!m_row.isValid() || fetchedCount <= 0 || appendedCount < 0)
390 15 return;
391 5 m_fetchedCount += fetchedCount;
392 5 m_appendedCount += appendedCount;
393
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 5 if (m_fetchedCount > m_expectedCount || m_appendedCount > m_expectedCount ||
394
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 5 m_fetchedCount != m_appendedCount) {
395 1 failAll(Outcome::Failed);
396 1 return;
397 }
398
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 4 if (m_fetchedCount < m_expectedCount)
399 1 return;
400 3 for (const Operation &operation :
401
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 30 {m_row, m_badge, m_notification, m_settled}) {
402
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 12 operation.endPhase(QStringLiteral("protocol_and_header_fetch"),
403 12 m_fetchedCount);
404
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 24 operation.mark(QStringLiteral("headers_committed"), m_fetchedCount);
405 15 }
406
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 6 m_row.startPhase(QStringLiteral("row_paint"));
407
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 6 m_settled.startPhase(QStringLiteral("visible_settle"));
408 3 m_rowPaintPending = true;
409
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 3 if (m_mailViewport)
410 2 m_mailViewport->update();
411 }
412
413 7 void BackgroundPerformanceTracker::badgeCommitted() {
414
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 13 if (!m_badge.isValid() || m_fetchedCount != m_expectedCount ||
415
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 13 m_badgePaintPending || m_badgePainted)
416 4 return;
417
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 6 m_badge.startPhase(QStringLiteral("badge_paint"));
418 3 m_badgePaintPending = true;
419
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 3 if (m_badgeViewport)
420 2 m_badgeViewport->update();
421 }
422
423 7 void BackgroundPerformanceTracker::notificationCommitted(int representedCount,
424 bool accepted) {
425
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 7 if (!m_notification.isValid() || representedCount <= 0)
426 3 return;
427
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 4 if (!accepted) {
428 ✗ failAll(Outcome::Failed);
429 ✗ return;
430 }
431 4 m_notificationCount += representedCount;
432
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 4 if (m_notificationCount > m_expectedCount) {
433 1 failAll(Outcome::Failed);
434 1 return;
435 }
436
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 3 if (m_notificationCount == m_expectedCount) {
437
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 2 m_notification.mark(QStringLiteral("notification_service_accepted"),
438 2 m_notificationCount);
439 2 m_notification.finish(Outcome::Success, m_expectedCount);
440 2 m_notification = {};
441 2 m_notificationAccepted = true;
442 2 maybeScheduleSettled();
443 }
444 }
445
446 ✗ void BackgroundPerformanceTracker::failRealtimeDelivery() {
447 ✗ failAll(Outcome::Failed);
448 ✗ }
449
450 2 void BackgroundPerformanceTracker::failAll(Outcome outcome) {
451
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 10 for (Operation *operation : {&m_row, &m_badge, &m_notification, &m_settled}) {
452
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 8 if (operation->isValid())
453
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 6 operation->finish(outcome, m_expectedCount);
454 8 *operation = {};
455 }
456 2 m_rowPaintPending = false;
457 2 m_badgePaintPending = false;
458 2 m_settleScheduled = false;
459 2 ++m_generation;
460 2 }
461
462 8 void BackgroundPerformanceTracker::maybeScheduleSettled() {
463
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 16 if (!m_settled.isValid() || m_settleScheduled || !m_rowPainted ||
464
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 16 !m_badgePainted || !m_notificationAccepted)
465 6 return;
466 2 m_settleScheduled = true;
467 2 const quint64 generation = ++m_generation;
468
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 2 QTimer::singleShot(100, this, [this, generation]() {
469
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 2 if (!m_settled.isValid() || generation != m_generation)
470 ✗ return;
471
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 4 m_settled.endPhase(QStringLiteral("visible_settle"), m_repaintCount);
472
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 4 m_settled.mark(QStringLiteral("settled_event_loop_turn"), m_repaintCount);
473 2 m_settled.finish(Outcome::Success, m_expectedCount);
474 2 m_settled = {};
475 2 m_settleScheduled = false;
476 });
477 }
478
479 40 bool BackgroundPerformanceTracker::eventFilter(QObject *watched,
480 QEvent *event) {
481
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 40 if (event->type() == QEvent::Paint) {
482
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 7 if (watched == m_mailViewport && m_rowPaintPending && m_row.isValid()) {
483 3 ++m_repaintCount;
484
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 6 m_row.endPhase(QStringLiteral("row_paint"), m_expectedCount);
485 3 m_row.finish(Outcome::Success, m_expectedCount);
486 3 m_row = {};
487 3 m_rowPaintPending = false;
488 3 m_rowPainted = true;
489 3 maybeScheduleSettled();
490 }
491
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 10 if (watched == m_badgeViewport && m_badgePaintPending &&
492
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 3 m_badge.isValid()) {
493 3 ++m_repaintCount;
494
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 6 m_badge.endPhase(QStringLiteral("badge_paint"), m_expectedCount);
495 3 m_badge.finish(Outcome::Success, m_expectedCount);
496 3 m_badge = {};
497 3 m_badgePaintPending = false;
498 3 m_badgePainted = true;
499 3 maybeScheduleSettled();
500 }
501 }
502 40 return QObject::eventFilter(watched, event);
503 }
504
505 } // namespace MailJD::Performance
506