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better time prediction

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This commit is contained in:
Eran 2014-05-14 16:57:14 +03:00
parent 1509c4ffba
commit 5310a3cc1d
2 changed files with 13 additions and 10 deletions
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6
src/mirall/progressdispatcher.h
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@ -47,13 +47,13 @@ namespace Progress
struct EtaEstimate {
EtaEstimate() : _startedTime(QDateTime::currentMSecsSinceEpoch()), _agvEtaMSecs(0),_effectivProgressPerSec(0),_sampleCount(1) {}
static const int MAX_AVG_DIVIDER=120;
static const int MAX_AVG_DIVIDER=60;
static const int INITAL_WAIT_TIME=5;
quint64 _startedTime ;
quint64 _agvEtaMSecs;
quint64 _effectivProgressPerSec;
quint16 _sampleCount;
float _sampleCount;
/**
* reset the estiamte.
@ -73,7 +73,7 @@ namespace Progress
quint64 elapsedTime = QDateTime::currentMSecsSinceEpoch() - this->_startedTime ;
//don't start until you have some good data to process, prevents jittring estiamtes at the start of the syncing process
if(total != 0 && completed != 0 && elapsedTime > INITAL_WAIT_TIME ) {
if(_sampleCount < MAX_AVG_DIVIDER) { _sampleCount++; }
if(_sampleCount < MAX_AVG_DIVIDER) { _sampleCount+=0.01f; }
// (elapsedTime-1) is an hack to avoid float "rounding" issue (ie. 0.99999999999999999999....)
_agvEtaMSecs = _agvEtaMSecs + (((static_cast<float>(total) / completed) * elapsedTime) - (elapsedTime-1)) - this->getEtaEstimate();
_effectivProgressPerSec = ( total - completed ) / (1+this->getEtaEstimate()/1000);

17
src/mirall/utility.cpp
View file

@ -454,14 +454,17 @@ qint64 Utility::qDateTimeToTime_t(const QDateTime& t)
QString Utility::timeToDescriptiveString(quint64 msecs)
{
QList<QPair<QString,quint32> > timeMapping = QList<QPair<QString,quint32> >();
timeMapping.append(QPair<QString,quint32>("years",86400*365));
timeMapping.append(QPair<QString,quint32>("months",86400*30));
timeMapping.append(QPair<QString,quint32>("days",86400));
timeMapping.append(QPair<QString,quint32>("hours",3600));
timeMapping.append(QPair<QString,quint32>("minutes",60));
timeMapping.append(QPair<QString,quint32>("seconds",1));
//TODO change to initializers list when possible.
static QList<QPair<QString,quint32> > timeMapping = QList<QPair<QString,quint32> >() <<
QPair<QString,quint32>("years",86400*365) <<
QPair<QString,quint32>("months",86400*30) <<
QPair<QString,quint32>("days",86400) <<
QPair<QString,quint32>("hours",3600) <<
QPair<QString,quint32>("minutes",60) <<
QPair<QString,quint32>("seconds",1);
return timeToDescriptiveString(timeMapping, msecs, 1);
}