parallel_for slow inside visual studio

1
votes

I use parallel_for from ppl.h and when I run the program from visual studio (2010) both debug and release version they run quite slow compared to running the executable from outside visual studio. Is there some option that I can disable, only in the release version maybe, to run the program faster inside visual studio?

1
visual-studiovisual-c++-2010

1 Answers

2
votes

You can try running the program without the debugger being attached to it. In C++-Mode the shortcut for that is CTRL + F5.

  • If this is still slow, there may be some environment variable that is (not) being set when run from Visual Studio but when you run it outside of VS.
  • If it's fast now, then the attached debugger probably slows your application down. If and how this can be improved depends on your project type, i.e. programming language, I guess.