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better time prediction
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parent
1509c4ffba
commit
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2 changed files with 13 additions and 10 deletions
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@ -47,13 +47,13 @@ namespace Progress
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struct EtaEstimate {
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EtaEstimate() : _startedTime(QDateTime::currentMSecsSinceEpoch()), _agvEtaMSecs(0),_effectivProgressPerSec(0),_sampleCount(1) {}
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static const int MAX_AVG_DIVIDER=120;
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static const int MAX_AVG_DIVIDER=60;
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static const int INITAL_WAIT_TIME=5;
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quint64 _startedTime ;
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quint64 _agvEtaMSecs;
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quint64 _effectivProgressPerSec;
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quint16 _sampleCount;
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float _sampleCount;
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/**
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* reset the estiamte.
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@ -73,7 +73,7 @@ namespace Progress
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quint64 elapsedTime = QDateTime::currentMSecsSinceEpoch() - this->_startedTime ;
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//don't start until you have some good data to process, prevents jittring estiamtes at the start of the syncing process
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if(total != 0 && completed != 0 && elapsedTime > INITAL_WAIT_TIME ) {
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if(_sampleCount < MAX_AVG_DIVIDER) { _sampleCount++; }
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if(_sampleCount < MAX_AVG_DIVIDER) { _sampleCount+=0.01f; }
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// (elapsedTime-1) is an hack to avoid float "rounding" issue (ie. 0.99999999999999999999....)
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_agvEtaMSecs = _agvEtaMSecs + (((static_cast<float>(total) / completed) * elapsedTime) - (elapsedTime-1)) - this->getEtaEstimate();
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_effectivProgressPerSec = ( total - completed ) / (1+this->getEtaEstimate()/1000);
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@ -454,13 +454,16 @@ qint64 Utility::qDateTimeToTime_t(const QDateTime& t)
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QString Utility::timeToDescriptiveString(quint64 msecs)
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{
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QList<QPair<QString,quint32> > timeMapping = QList<QPair<QString,quint32> >();
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timeMapping.append(QPair<QString,quint32>("years",86400*365));
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timeMapping.append(QPair<QString,quint32>("months",86400*30));
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timeMapping.append(QPair<QString,quint32>("days",86400));
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timeMapping.append(QPair<QString,quint32>("hours",3600));
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timeMapping.append(QPair<QString,quint32>("minutes",60));
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timeMapping.append(QPair<QString,quint32>("seconds",1));
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//TODO change to initializers list when possible.
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static QList<QPair<QString,quint32> > timeMapping = QList<QPair<QString,quint32> >() <<
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QPair<QString,quint32>("years",86400*365) <<
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QPair<QString,quint32>("months",86400*30) <<
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QPair<QString,quint32>("days",86400) <<
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QPair<QString,quint32>("hours",3600) <<
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QPair<QString,quint32>("minutes",60) <<
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QPair<QString,quint32>("seconds",1);
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return timeToDescriptiveString(timeMapping, msecs, 1);
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}
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