Hi,
I have realised that I cannot release all the memory allocated by a huge
QJsonObject when I don’t need it any more. To ensure that nothing else was in
between I have created a simple program that does what is below. Conclusion:
- Running on a Mac, compiled in release with Qt 6.5.3
- Starts with 31.7 MB

- Goes up to 412.5 MB

- After calling uncreate drops to 42.7

If I repeat this procedure, it always increases the process memory size
although it is not linear.
In iOS the problem is even worse.
Any ideas of what is happening here?
Thank you!
Best regards,
Nuno
QString GetRandomString()
{
const QString
possibleCharacters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
const int randomStringLength = 4096; // assuming you want random strings of
12 characters
QString randomString;
for(int i=0; i<randomStringLength; ++i)
{
int index = QRandomGenerator::global()->generate() %
possibleCharacters.length();
QChar nextChar = possibleCharacters.at(index);
randomString.append(nextChar);
}
return randomString;
}
void Controller::create()
{
qDebug() << Q_FUNC_INFO;
for (int i=0; i<100000; i++)
_data[QString::number(i)] = GetRandomString();
}
void Controller::uncreate()
{
qDebug() << Q_FUNC_INFO;
_data = QJsonObject();
}
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