@samdol
ok. so we assume device is ok.
Did you try test program and compared elapse times?
0.3 is not slow as such.
Could be interesting to see where you land.
What is myData ?
One big array ?
update:
tried
For /L %i in (1,1,10000) do fsutil file createnew B%i.tmp 65536
gives me 10.000 files on usb stick.
(unmount / mount before test to avoid cashing)
#include <QDir>
void MainWindow::on_pushButton_2_released()
{
auto start = std::chrono::high_resolution_clock::now();
QDir qdir("g:/");
QStringList fn_list = qdir.entryList( QDir::NoDotAndDotDot | QDir::NoSymLinks | QDir::Hidden | QDir::Files);
auto finish = std::chrono::high_resolution_clock::now();
std::chrono::duration<double> elapsed = finish - start;
qDebug() << "Elapsed time: " << elapsed.count();
}
Elapsed time: 1.54938
So under 2 secs.
This is win 10. Qt 5.7.
