Change Details

Optimize strcmp for powerpc64. Data is loaded by double words and cmpb intruction is used to find '\0'. Some performance gain rates between the current and the optimized solution: | String size (Bytes) | <= 16 | 32 | 64 | 128 | 256 | 512 | 1024 | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | Gain rate | -0.81 % | 1.21 % | 3.32 % | 7.52 % | 14.86 % | 27.18 % | 42.08 %

Optimize strcmp for powerpc64. Data is loaded by double words and cmpb intruction is used to find '\0'. Some performance gain rates between the current and the optimized solution: | String size (Bytes) | <=8 | <= 16 | 32 | 64 | 128 | 256 | 512 | 1024 | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | Gain rate | - | -0.81 % | 1.21 % | 3.32 % | 7.52 % | 14.86 % | 27.18 % | 42.08 % | Gain rate (27/02/2019) | 0.59% | 1.92 % | 3.02 % | 5.60 % | 10.16 % | 18.05 % | 30.18 % | 42.82 %

Optimize strcmp for powerpc64. Data is loaded by double words and cmpb intruction is used to find '\0'. Some performance gain rates between the current and the optimized solution: | String size (Bytes) | <=8 | <= 16 | 32 | 64 | 128 | 256 | 512 | 1024 | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | Gain rate | - | -0.81 % | 1.21 % | 3.32 % | 7.52 % | 14.86 % | 27.18 % | 42.08 % | Gain rate (27/02/2019) | 0.59% | 1.92 % | 3.02 % | 5.60 % | 10.16 % | 18.05 % | 30.18 % | 42.82 %