GUI application problems

[jdiewald]

There are different tools depending on your platform. Most recently, I've used VTune (Intel) on Windows. In a previous job, I used (and helped develop) the DevPartner Studio performance tools (was NuMega, then Compuware, now Microfocus) on Windows. At my current job, they use Shark on the Macintosh. There are many other tools out there. A quick Google search of "performance analysis c++" turns up quite a few hits.

[tbscope]

Even if you don't have external tools, justs a fex QTime differences and debug lines give a rough estimate.

But, expect to have a larger loading time when you load and render svg files at startup. Unless you could load them later when the program is already running, you have to accept the load time. 3 seconds isn't that long anyway.