Files
qt-creator/src/plugins/qmlprofiler/qmlprofilerstatisticsmodel.cpp
Ulf Hermann 5253dfeacf QmlProfiler: remove unused members from statistics relatives model
We never use the q pointer and we only show notes in the main model.

Change-Id: I635a97f8d878ba12b9ae55e2b758d1651d5e3aae
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>
2016-05-03 15:01:38 +00:00

467 lines
16 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
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**
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#include "qmlprofilerstatisticsmodel.h"
#include "qmlprofilermodelmanager.h"
#include "qmlprofilerdatamodel.h"
#include <utils/algorithm.h>
#include <utils/qtcassert.h>
#include <QVector>
#include <QHash>
#include <QUrl>
#include <QString>
#include <QStack>
#include <QElapsedTimer>
#include <QDebug>
namespace QmlProfiler {
class QmlProfilerStatisticsModel::QmlProfilerStatisticsModelPrivate
{
public:
QHash<int, QmlProfilerStatisticsModel::QmlEventStats> data;
QmlProfilerModelManager *modelManager;
int modelId;
QList<RangeType> acceptedTypes;
QSet<int> eventsInBindingLoop;
QHash<int, QString> notes;
};
QmlProfilerStatisticsModel::QmlProfilerStatisticsModel(QmlProfilerModelManager *modelManager,
QObject *parent) :
QObject(parent), d(new QmlProfilerStatisticsModelPrivate)
{
d->modelManager = modelManager;
connect(modelManager->qmlModel(), &QmlProfilerDataModel::changed,
this, &QmlProfilerStatisticsModel::dataChanged);
connect(modelManager->notesModel(), &Timeline::TimelineNotesModel::changed,
this, &QmlProfilerStatisticsModel::notesChanged);
d->modelId = modelManager->registerModelProxy();
// We're iterating twice in loadData.
modelManager->setProxyCountWeight(d->modelId, 2);
d->acceptedTypes << Compiling << Creating << Binding << HandlingSignal << Javascript;
modelManager->announceFeatures(d->modelId, Constants::QML_JS_RANGE_FEATURES);
}
QmlProfilerStatisticsModel::~QmlProfilerStatisticsModel()
{
delete d;
}
void QmlProfilerStatisticsModel::setEventTypeAccepted(RangeType type, bool accepted)
{
if (accepted && !d->acceptedTypes.contains(type))
d->acceptedTypes << type;
else if (!accepted && d->acceptedTypes.contains(type))
d->acceptedTypes.removeOne(type);
}
bool QmlProfilerStatisticsModel::eventTypeAccepted(RangeType type) const
{
return d->acceptedTypes.contains(type);
}
const QHash<int, QmlProfilerStatisticsModel::QmlEventStats> &QmlProfilerStatisticsModel::getData() const
{
return d->data;
}
const QVector<QmlProfilerDataModel::QmlEventTypeData> &QmlProfilerStatisticsModel::getTypes() const
{
return d->modelManager->qmlModel()->getEventTypes();
}
const QHash<int, QString> &QmlProfilerStatisticsModel::getNotes() const
{
return d->notes;
}
void QmlProfilerStatisticsModel::clear()
{
d->modelManager->modelProxyCountUpdated(d->modelId, 0, 1);
d->data.clear();
d->eventsInBindingLoop.clear();
d->notes.clear();
}
void QmlProfilerStatisticsModel::limitToRange(qint64 rangeStart, qint64 rangeEnd)
{
if (!d->modelManager->isEmpty())
loadData(rangeStart, rangeEnd);
}
void QmlProfilerStatisticsModel::dataChanged()
{
if (d->modelManager->state() == QmlProfilerModelManager::ProcessingData)
loadData();
else if (d->modelManager->state() == QmlProfilerModelManager::ClearingData)
clear();
}
void QmlProfilerStatisticsModel::notesChanged(int typeIndex)
{
const QmlProfilerNotesModel *notesModel = d->modelManager->notesModel();
if (typeIndex == -1) {
d->notes.clear();
for (int noteId = 0; noteId < notesModel->count(); ++noteId) {
int noteType = notesModel->typeId(noteId);
if (noteType != -1) {
QString &note = d->notes[noteType];
if (note.isEmpty()) {
note = notesModel->text(noteId);
} else {
note.append(QStringLiteral("\n")).append(notesModel->text(noteId));
}
}
}
} else {
d->notes.remove(typeIndex);
const QVariantList changedNotes = notesModel->byTypeId(typeIndex);
if (!changedNotes.isEmpty()) {
QStringList newNotes;
for (QVariantList::ConstIterator it = changedNotes.begin(); it != changedNotes.end();
++it) {
newNotes << notesModel->text(it->toInt());
}
d->notes[typeIndex] = newNotes.join(QStringLiteral("\n"));
}
}
emit notesAvailable(typeIndex);
}
const QSet<int> &QmlProfilerStatisticsModel::eventsInBindingLoop() const
{
return d->eventsInBindingLoop;
}
void QmlProfilerStatisticsModel::loadData(qint64 rangeStart, qint64 rangeEnd)
{
clear();
qint64 qmlTime = 0;
qint64 lastEndTime = 0;
QHash <int, QVector<qint64> > durations;
const bool checkRanges = (rangeStart != -1) && (rangeEnd != -1);
const QVector<QmlProfilerDataModel::QmlEventData> &eventList
= d->modelManager->qmlModel()->getEvents();
const QVector<QmlProfilerDataModel::QmlEventTypeData> &typesList
= d->modelManager->qmlModel()->getEventTypes();
// used by binding loop detection
QStack<const QmlProfilerDataModel::QmlEventData*> callStack;
callStack.push(0); // artificial root
for (int i = 0; i < eventList.size(); ++i) {
const QmlProfilerDataModel::QmlEventData *event = &eventList[i];
const QmlProfilerDataModel::QmlEventTypeData *type = &typesList[event->typeIndex()];
if (!d->acceptedTypes.contains(type->rangeType))
continue;
if (checkRanges) {
if ((event->startTime() + event->duration() < rangeStart)
|| (event->startTime() > rangeEnd))
continue;
}
// update stats
QmlEventStats *stats = &d->data[event->typeIndex()];
stats->duration += event->duration();
stats->durationSelf += event->duration();
if (event->duration() < stats->minTime)
stats->minTime = event->duration();
if (event->duration() > stats->maxTime)
stats->maxTime = event->duration();
stats->calls++;
// for median computing
durations[event->typeIndex()].append(event->duration());
// qml time computation
if (event->startTime() > lastEndTime) { // assume parent event if starts before last end
qmlTime += event->duration();
lastEndTime = event->startTime() + event->duration();
}
//
// binding loop detection
//
const QmlProfilerDataModel::QmlEventData *potentialParent = callStack.top();
while (potentialParent && !(potentialParent->startTime() + potentialParent->duration() >
event->startTime())) {
callStack.pop();
potentialParent = callStack.top();
}
// check whether event is already in stack
for (int ii = 1; ii < callStack.size(); ++ii) {
if (callStack.at(ii)->typeIndex() == event->typeIndex()) {
d->eventsInBindingLoop.insert(event->typeIndex());
break;
}
}
if (callStack.count() > 1)
d->data[callStack.top()->typeIndex()].durationSelf -= event->duration();
callStack.push(event);
d->modelManager->modelProxyCountUpdated(d->modelId, i, eventList.count()*2);
}
// post-process: calc mean time, median time, percentoftime
int i = d->data.size();
int total = i * 2;
for (QHash<int, QmlEventStats>::iterator it = d->data.begin(); it != d->data.end(); ++it) {
QmlEventStats* stats = &it.value();
if (stats->calls > 0)
stats->timePerCall = stats->duration / (double)stats->calls;
QVector<qint64> eventDurations = durations[it.key()];
if (!eventDurations.isEmpty()) {
Utils::sort(eventDurations);
stats->medianTime = eventDurations.at(eventDurations.count()/2);
}
stats->percentOfTime = stats->duration * 100.0 / qmlTime;
stats->percentSelf = stats->durationSelf * 100.0 / qmlTime;
d->modelManager->modelProxyCountUpdated(d->modelId, i++, total);
}
// set binding loop flag
foreach (int typeIndex, d->eventsInBindingLoop)
d->data[typeIndex].isBindingLoop = true;
// insert root event
QmlEventStats rootEvent;
rootEvent.duration = rootEvent.minTime = rootEvent.maxTime = rootEvent.timePerCall
= rootEvent.medianTime = qmlTime + 1;
rootEvent.durationSelf = 1;
rootEvent.calls = 1;
rootEvent.percentOfTime = 100.0;
rootEvent.percentSelf = 1.0 / rootEvent.duration;
d->data.insert(-1, rootEvent);
d->modelManager->modelProxyCountUpdated(d->modelId, 1, 1);
emit dataAvailable();
}
int QmlProfilerStatisticsModel::count() const
{
return d->data.count();
}
QmlProfilerStatisticsRelativesModel::QmlProfilerStatisticsRelativesModel(
QmlProfilerModelManager *modelManager, QmlProfilerStatisticsModel *statisticsModel,
QObject *parent) : QObject(parent)
{
QTC_CHECK(modelManager);
m_modelManager = modelManager;
QTC_CHECK(statisticsModel);
m_statisticsModel = statisticsModel;
// Load the child models whenever the parent model is done to get the filtering for JS/QML
// right.
connect(m_statisticsModel, &QmlProfilerStatisticsModel::dataAvailable,
this, &QmlProfilerStatisticsRelativesModel::dataChanged);
}
const QmlProfilerStatisticsRelativesModel::QmlStatisticsRelativesMap &
QmlProfilerStatisticsRelativesModel::getData(int typeId) const
{
QHash <int, QmlStatisticsRelativesMap>::ConstIterator it = m_data.find(typeId);
if (it != m_data.end()) {
return it.value();
} else {
static const QmlStatisticsRelativesMap emptyMap;
return emptyMap;
}
}
const QVector<QmlProfilerDataModel::QmlEventTypeData> &
QmlProfilerStatisticsRelativesModel::getTypes() const
{
return m_modelManager->qmlModel()->getEventTypes();
}
int QmlProfilerStatisticsRelativesModel::count() const
{
return m_data.count();
}
void QmlProfilerStatisticsRelativesModel::clear()
{
m_data.clear();
}
void QmlProfilerStatisticsRelativesModel::dataChanged()
{
loadData();
emit dataAvailable();
}
QmlProfilerStatisticsParentsModel::QmlProfilerStatisticsParentsModel(
QmlProfilerModelManager *modelManager, QmlProfilerStatisticsModel *statisticsModel,
QObject *parent) :
QmlProfilerStatisticsRelativesModel(modelManager, statisticsModel, parent)
{}
void QmlProfilerStatisticsParentsModel::loadData()
{
clear();
QmlProfilerDataModel *simpleModel = m_modelManager->qmlModel();
if (simpleModel->isEmpty())
return;
// for level computation
QHash<int, qint64> endtimesPerLevel;
int level = Constants::QML_MIN_LEVEL;
endtimesPerLevel[0] = 0;
const QSet<int> &eventsInBindingLoop = m_statisticsModel->eventsInBindingLoop();
// compute parent-child relationship and call count
QHash<int, int> lastParent;
const QVector<QmlProfilerDataModel::QmlEventData> eventList = simpleModel->getEvents();
const QVector<QmlProfilerDataModel::QmlEventTypeData> typesList = simpleModel->getEventTypes();
foreach (const QmlProfilerDataModel::QmlEventData &event, eventList) {
// whitelist
if (!m_statisticsModel->eventTypeAccepted(typesList[event.typeIndex()].rangeType))
continue;
// level computation
if (endtimesPerLevel[level] > event.startTime()) {
level++;
} else {
while (level > Constants::QML_MIN_LEVEL &&
endtimesPerLevel[level-1] <= event.startTime())
level--;
}
endtimesPerLevel[level] = event.startTime() + event.duration();
int parentTypeIndex = -1;
if (level > Constants::QML_MIN_LEVEL && lastParent.contains(level-1))
parentTypeIndex = lastParent[level-1];
QmlStatisticsRelativesMap &relativesMap = m_data[event.typeIndex()];
QmlStatisticsRelativesMap::Iterator it = relativesMap.find(parentTypeIndex);
if (it != relativesMap.end()) {
it.value().calls++;
it.value().duration += event.duration();
} else {
QmlStatisticsRelativesData parent = {
event.duration(),
1,
eventsInBindingLoop.contains(parentTypeIndex)
};
relativesMap.insert(parentTypeIndex, parent);
}
// now lastparent is the new type
lastParent[level] = event.typeIndex();
}
}
QmlProfilerStatisticsChildrenModel::QmlProfilerStatisticsChildrenModel(
QmlProfilerModelManager *modelManager, QmlProfilerStatisticsModel *statisticsModel,
QObject *parent) :
QmlProfilerStatisticsRelativesModel(modelManager, statisticsModel, parent)
{}
void QmlProfilerStatisticsChildrenModel::loadData()
{
clear();
QmlProfilerDataModel *simpleModel = m_modelManager->qmlModel();
if (simpleModel->isEmpty())
return;
// for level computation
QHash<int, qint64> endtimesPerLevel;
int level = Constants::QML_MIN_LEVEL;
endtimesPerLevel[0] = 0;
const QSet<int> &eventsInBindingLoop = m_statisticsModel->eventsInBindingLoop();
// compute parent-child relationship and call count
QHash<int, int> lastParent;
const QVector<QmlProfilerDataModel::QmlEventData> &eventList = simpleModel->getEvents();
const QVector<QmlProfilerDataModel::QmlEventTypeData> &typesList = simpleModel->getEventTypes();
foreach (const QmlProfilerDataModel::QmlEventData &event, eventList) {
// whitelist
if (!m_statisticsModel->eventTypeAccepted(typesList[event.typeIndex()].rangeType))
continue;
// level computation
if (endtimesPerLevel[level] > event.startTime()) {
level++;
} else {
while (level > Constants::QML_MIN_LEVEL &&
endtimesPerLevel[level-1] <= event.startTime())
level--;
}
endtimesPerLevel[level] = event.startTime() + event.duration();
int parentId = -1;
if (level > Constants::QML_MIN_LEVEL && lastParent.contains(level-1))
parentId = lastParent[level-1];
QmlStatisticsRelativesMap &relativesMap = m_data[parentId];
QmlStatisticsRelativesMap::Iterator it = relativesMap.find(event.typeIndex());
if (it != relativesMap.end()) {
it.value().calls++;
it.value().duration += event.duration();
} else {
QmlStatisticsRelativesData child = {
event.duration(),
1,
eventsInBindingLoop.contains(parentId)
};
relativesMap.insert(event.typeIndex(), child);
}
// now lastparent is the new type
lastParent[level] = event.typeIndex();
}
}
}