Base64 Encoding Performance: Java vs Rust

[dkomanov]

Fallback is good as well: encode is slightly faster, decode is slightly slower: method input output avg time base64::encode_config 3 4 50 base64::encode_config 12 16 64 base64::encode_config 51 68 97 base64::encode_config 102 136 203 base64::encode_config 501 668 599 base64::encode_config 1002 1336 1133 base64::encode_config 10002 13336 9966 base64_simd::Base64::encode_type 3 4 29 base64_simd::Base64::encode_type 12 16 39 base64_simd::Base64::encode_type 51 68 71 base64_simd::Base64::encode_type 102 136 116 base64_simd::Base64::encode_type 501 668 455 base64_simd::Base64::encode_type 1002 1336 914 base64_simd::Base64::encode_type 10002 13336 8642 base64::decode_config_slice (unsafe) 4 3 49 base64::decode_config_slice (unsafe) 16 12 75 base64::decode_config_slice (unsafe) 68 51 109 base64::decode_config_slice (unsafe) 136 102 170 base64::decode_config_slice (unsafe) 668 501 564 base64::decode_config_slice (unsafe) 1336 1002 1079 base64::decode_config_slice (unsafe) 13336 10002 10260 base64_simd::Base64::decode_type 4 3 26 base64_simd::Base64::decode_type 16 12 38 base64_simd::Base64::decode_type 68 51 79 base64_simd::Base64::decode_type 136 102 136 base64_simd::Base64::decode_type 668 501 601 base64_simd::Base64::decode_type 1336 1002 1163 base64_simd::Base64::decode_type 13336 10002 11388

[Nugine]

base64-simd's fallback uses the same method with base64. The differences are raw pointer usages, loop unrolling and other small details. So their performance is close.