[Interest] QMap<int64_t> significantly slower than QMap<int32_t>

Giuseppe D'Angelo dangelog at gmail.com
Sat Sep 21 15:47:28 CEST 2013


On 21 September 2013 14:47, Etienne Sandré-Chardonnal
<etienne.sandre at m4x.org> wrote:
> I'm experiencing this issue : a 64-bit int QMap slows my app comparing to a
> 32-bit int one. I'm compiling with GCC-MinGW64, so a 64-bit compiler.
> Shouldn't it be as fast? The QMap is not very large (maybe 1000 elements)
> and I have much bigger structures in my app, so the memory size should not
> be responsible for the slowdown.

Do you have a SSCCE [1] that clearly shows the issue?

[1] http://sscce.org/

-- 
Giuseppe D'Angelo



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