QTimer at 50Hz on Linux - High CPU Usage

Hello,
I am using QT 5.8

On Windows I have no ploblems.
On Fedora 25 Using a qTimer set at 50 hz, the CPU usage rises to 90%.
If I reduce the frequency of the qTimer the CPU usage decreases considerably.

Code:

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QTimer* m_timer; // in file .h
 
// in file .cpp
 
m_timer= new QTimer(); 
int interval = (1 / 50) * 1000;
 
m_timer->start(interval);
 
connect(m_timer SIGNAL(timeout()),
            this, SLOT(slotRead()));

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Can you give me some suggestions?

Thanks in advance!
Best Regards!

Quote:

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Originally Posted by Elisabetta

Code:

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int interval = (1 / 50) * 1000;

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Hi, "interval" here becomes zero because 1/50 is done using integers. This is probably not what you want (or not what you actually do...).

Ginsengelf