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## gcc compiler optimization for arm systems.md

      
        
          
            
              
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                etaf
                / gcc compiler optimization for arm systems.md
            
            
              Created
              January 13, 2020 02:56
                — forked from nickfox-taterli/gcc compiler optimization for arm systems.md
            
              
                GCC compiler optimization for ARM-based systems
              
          
        
      
        
  
      
    GCC compiler optimization for ARM-based systems

2017-03-03 fm4dd
The gcc compiler can optimize code by taking advantage of CPU specific features. Especially for ARM CPU's, this can have impact on application performance. ARM CPU's, even under the same architecture, could be implemented with different versions of floating point units (FPU). Utilizing full FPU potential improves performance of heavier operating systems such as full Linux distributions.
-mcpu, -march: Defining the CPU type and architecture

These flags can both be used to set the CPU type. Setting one or the other is sufficient.