Move params to struct, more informative debug

Took 56 seconds

Took 53 seconds

Took 2 minutes

Took 33 seconds

cockatrice/src/client/network/connection_controller/remote_connection_controller.cpp

@@ -45,7 +45,6 @@ void ConnectionController::wireClientSignals()
     connect(remoteClient, &RemoteClient::statusChanged, this, &ConnectionController::onStatusChanged);
 
     connect(remoteClient, &AbstractClient::pingStatsUpdated, this, &ConnectionController::pingStatsUpdated);
-    connect(remoteClient, &AbstractClient::pingSamplesUpdated, this, &ConnectionController::pingSamplesUpdated);
 
     connect(remoteClient, &RemoteClient::userInfoChanged, this, &ConnectionController::onUserInfoReceived,
             Qt::BlockingQueuedConnection);

cockatrice/src/client/network/connection_controller/remote_connection_controller.h

@@ -56,11 +56,7 @@ signals:
 
     // Forwarded from AbstractClient::pingStatsUpdated. See that signal for the
     // meaning of the parameters.
-    void pingStatsUpdated(int lastMs, int medianMs, int p95Ms, int maxMs, int sampleCount);
-
-    // Forwarded from AbstractClient::pingSamplesUpdated. See that signal for
-    // the meaning of the parameter.
-    void pingSamplesUpdated(const QList<int> &samplesMs);
+    void pingStatsUpdated(const LatencyTracker::Stats &stats, const QList<int> &samplesMs);
 
 private slots:
     // Slots wired directly to RemoteClient signals

libcockatrice_network/libcockatrice/network/client/abstract/abstract_client.cpp

@@ -1,6 +1,7 @@
 #include "abstract_client.h"
 
 #include <google/protobuf/descriptor.h>
+#include <libcockatrice/protocol/debug_pb_message.h>
 #include <libcockatrice/protocol/featureset.h>
 #include <libcockatrice/protocol/get_pb_extension.h>
 #include <libcockatrice/protocol/pb/commands.pb.h>
@@ -28,6 +29,7 @@ AbstractClient::AbstractClient(QObject *parent)
     qRegisterMetaType<Response>("Response");
     qRegisterMetaType<Response::ResponseCode>("Response::ResponseCode");
     qRegisterMetaType<ClientStatus>("ClientStatus");
+    qRegisterMetaType<LatencyTracker::Stats>("LatencyTracker::Stats");
     qRegisterMetaType<RoomEvent>("RoomEvent");
     qRegisterMetaType<GameEventContainer>("GameEventContainer");
     qRegisterMetaType<Event_ServerIdentification>("Event_ServerIdentification");
@@ -169,10 +171,10 @@ void AbstractClient::queuePendingCommand(PendingCommand *pend)
 
 namespace
 {
-constexpr int StatsEmitIntervalMs = 1000;
+constexpr int STATS_EMIT_INTERVAL_MS = 1000;
 // Game actions are what players perceive as lag. Surface unusually slow ones
 // without requiring debug logging to be enabled.
-constexpr qint64 SlowGameCommandWarnMs = 1500;
+constexpr qint64 SLOW_GAME_COMMAND_WARN_MS = 1500;
 } // namespace
 
 void AbstractClient::recordLatency(PendingCommand &pend)
@@ -189,29 +191,26 @@ void AbstractClient::recordLatency(PendingCommand &pend)
             << "command RTT:" << elapsed << "ms (cmd_id" << pend.getCommandContainer().cmd_id() << ")";
     }
 
-    if (elapsed >= SlowGameCommandWarnMs && pend.getCommandContainer().game_command_size() > 0) {
-        qCWarning(AbstractClientLog) << "slow game command round trip:" << elapsed << "ms (cmd_id"
-                                     << pend.getCommandContainer().cmd_id() << ")";
+    if (elapsed >= SLOW_GAME_COMMAND_WARN_MS && pend.getCommandContainer().game_command_size() > 0) {
+        qCWarning(AbstractClientLog).noquote()
+            << "slow game command round trip:" << elapsed << "ms | " << getSafeDebugString(pend.getCommandContainer());
     }
 
     // Emit aggregated stats at most once per StatsEmitIntervalMs so that the
     // per-command hot path stays free of signal traffic. The keepalive ping
     // guarantees a fresh sample roughly every second while connected.
-    if (!statsEmitClockStarted || statsEmitClock.elapsed() >= StatsEmitIntervalMs) {
+    if (!statsEmitClockStarted || statsEmitClock.elapsed() >= STATS_EMIT_INTERVAL_MS) {
         statsEmitClock.start();
         statsEmitClockStarted = true;
         const LatencyTracker::Stats stats = latencyTracker.stats();
-        const QList<qint64> recentSamples = latencyTracker.recentSamples();
 
         QList<int> samples;
         samples.reserve(stats.sampleCount);
-        for (qint64 sample : recentSamples) {
+        for (qint64 sample : latencyTracker.recentSamples()) {
             samples.append(static_cast<int>(sample));
         }
 
-        emit pingStatsUpdated(static_cast<int>(stats.lastMs), static_cast<int>(stats.medianMs),
-                              static_cast<int>(stats.p95Ms), static_cast<int>(stats.maxMs), stats.sampleCount);
-        emit pingSamplesUpdated(samples);
+        emit pingStatsUpdated(stats, samples);
     }
 }
 
@@ -219,8 +218,7 @@ void AbstractClient::clearLatencyStats()
 {
     latencyTracker.clear();
     statsEmitClockStarted = false;
-    emit pingStatsUpdated(0, 0, 0, 0, 0);
-    emit pingSamplesUpdated({});
+    emit pingStatsUpdated(LatencyTracker::Stats{}, {});
 }
 
 PendingCommand *AbstractClient::prepareSessionCommand(const ::google::protobuf::Message &cmd)

libcockatrice_network/libcockatrice/network/client/abstract/abstract_client.h

@@ -61,21 +61,16 @@ signals:
     void maxPingTime(int seconds, int maxSeconds);
 
     /**
-     * @brief Aggregated round-trip statistics, emitted at most once per second.
+     * @brief Aggregated round-trip statistics and a chronological snapshot of
+     * the rolling window, emitted at most once per second.
      *
-     * All values are in milliseconds. sampleCount is the number of samples
-     * currently in the rolling window. Emitted from the client thread. The
-     * connection to UI objects is automatically queued across threads.
+     * All values in the stats struct are in milliseconds; sampleCount is the
+     * number of samples currently in the rolling window. The samples list is
+     * ordered oldest first so graphs can redraw without polling the tracker
+     * across threads. Emitted from the client thread. The connection to UI
+     * objects is automatically queued across threads.
      */
-    void pingStatsUpdated(int lastMs, int medianMs, int p95Ms, int maxMs, int sampleCount);
-
-    /**
-     * @brief Chronological snapshot of the rolling window, oldest sample first.
-     *
-     * Emitted together with pingStatsUpdated under the same throttle, so
-     * graphs can redraw without polling the tracker across threads.
-     */
-    void pingSamplesUpdated(const QList<int> &samplesMs);
+    void pingStatsUpdated(const LatencyTracker::Stats &stats, const QList<int> &samplesMs);
 
     // Room events
     void roomEventReceived(const RoomEvent &event);
@@ -143,8 +138,8 @@ public:
 
     /**
      * @brief Drops all recorded round-trip samples and resets the stats
-     * emission throttle, emitting a zeroed pingStatsUpdated so that UI
-     * listeners can clear their display.
+     * emission throttle, emitting zeroed stats so that UI listeners can
+     * clear their display.
      *
      * Must be called from the client thread (as RemoteClient's disconnect
      * path does). The tracker is deliberately lock-free.

libcockatrice_network/libcockatrice/network/client/abstract/latency_tracker.h

@@ -7,6 +7,7 @@
 #define LATENCY_TRACKER_H
 
 #include <QList>
+#include <QMetaType>
 #include <array>
 
 /**
@@ -45,4 +46,6 @@ private:
     int count = 0; ///< number of valid samples, capped at WindowSize
 };
 
+Q_DECLARE_METATYPE(LatencyTracker::Stats)
+
 #endif