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c++linuxwindowsperformancedebugging
John Fox
John Fox

Reputation: 13

c++ Windows debug performance is very slow vs linux

I have a Cmake OpenCV project. If I execute the same project under Windows in the debug configuration is the performance very bad and I place zero breakpoints. In the release modus, I get the same performance as on Linux.

Why is the performance better on Linux than on Windows? Can I fix the performance issue on window?

I use the compiler GCC on Linux and on Windows the VS compiler. On both OSs, I use Clion as IDE.

Upvotes: 1

Views: 522

Answers (1)

rustyx
rustyx

Reputation: 85521

It is not uncommon to see 10..100+ slower performance between unoptimized and optimized code.

VC++ does more checks in Debug mode than GCC, which leads to easier debugging, but possibly slower code.

Some possible solutions:

Upvotes: 4

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