[Qt-interest] UI freeze queries: How to zero down to the code that blocks the thread.

[Nitin Mahajan]

Hello, 

I am trying to solve a UI freeze(mouse cursor freeze) happening intermittently during a download from internet.

I have profiled the app through callgrind as well as gprof. I also did run ltrace.

Can I get some ideas towards, how to narrow down to the piece of code(say from callgrind output, or ltrace output) which would be doing some wait and blocking the UI thread?

As I think that the functions listed on top, in the outputs of these profilers are not necessarily the one which are causing the wait/block.

regards

-Nitin


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