Re: Please help me test this glibc patch

[Samuel Thibault]

Samuel Thibault, le Tue 09 Dec 2014 20:02:59 +0100, a écrit :
> My native laptop:
> 
>    size iterations      gcc_memcpy      memcpy          vm_copy
>    4096    8388608      8.69            8.69            18.83           
>    8192    4194304      8.52            8.52            9.39            
>   12288    2796202      8.58            8.58            6.29            
>   16384    2097152      8.79            8.80            4.66            
>   32768    1048576      10.74           10.74           2.38            
>   65536     524288      10.72           10.73           1.23
> 
> My laptop in kvm virtualization:
>    size iterations      gcc_memcpy      memcpy          vm_copy
>    4096    8388608      5.97            5.92            15.16           
>    8192    4194304      5.78            5.78            7.65            
>   12288    2796202      5.98            5.86            4.88            
>   16384    2097152      5.96            5.96            3.69            
>   32768    1048576      7.32            7.30            1.85            
>   65536     524288      7.34            7.29            0.96

And the same laptop on Linux:
   size iterations      gcc_memcpy      memcpy
   4096    8388608      5.98            5.96            
   8192    4194304      5.84            5.86            
  12288    2796202      5.78            5.80            
  16384    2097152      5.93            5.88            
  32768    1048576      6.67            6.65            
  65536     524288      6.59            6.59            

Samuel