opengl - glGetUniformLocation using a lot of CPU -

Is it normal when I call glGetUniformLocation in my render loop only once , Then the CPU usage process goes up to 30-40%? Should I call this method only once and store space in memory?

This is my code:

  glutton shader :: getUniform (const std :: string and name) Const {return glGetUniformLocation (m_programId, name.c_str ()); }  

Should I call this method only once and store Should store location in?

Yes, this will be the usual procedure either, or experiment.