Debug.md

Normal

running 4 tests test atof_real_f32_lexical ... bench: 9,522,969 ns/iter (+/- 568,037) test atof_real_f32_parse ... bench: 7,705,735 ns/iter (+/- 427,745) test atof_real_f64_lexical ... bench: 579,470 ns/iter (+/- 53,207) test atof_real_f64_parse ... bench: 458,225 ns/iter (+/- 34,298)

Removing Parse Mantissa

running 4 tests test atof_real_f32_lexical ... bench: 3,910,359 ns/iter (+/- 179,289) test atof_real_f32_parse ... bench: 7,696,323 ns/iter (+/- 470,487) test atof_real_f64_lexical ... bench: 232,261 ns/iter (+/- 15,690) test atof_real_f64_parse ... bench: 458,034 ns/iter (+/- 27,882)

Removing Parse Mantissa + Previous (Does nothing).

running 4 tests test atof_real_f32_lexical ... bench: 3,894,768 ns/iter (+/- 274,067) test atof_real_f32_parse ... bench: 7,595,580 ns/iter (+/- 503,974) test atof_real_f64_lexical ... bench: 230,111 ns/iter (+/- 21,987) test atof_real_f64_parse ... bench: 457,584 ns/iter (+/- 87,386)

Remove Filter Special + Previous (Does little).

running 4 tests test atof_real_f32_lexical ... bench: 3,693,884 ns/iter (+/- 154,190) test atof_real_f32_parse ... bench: 7,542,517 ns/iter (+/- 324,042) test atof_real_f64_lexical ... bench: 238,669 ns/iter (+/- 47,890) test atof_real_f64_parse ... bench: 450,920 ns/iter (+/- 43,167)

Remove Filter Sign + Previous (Does little).

running 4 tests test atof_real_f32_lexical ... bench: 3,531,515 ns/iter (+/- 146,990) test atof_real_f32_parse ... bench: 7,506,981 ns/iter (+/- 419,084) test atof_real_f64_lexical ... bench: 211,185 ns/iter (+/- 9,688) test atof_real_f64_parse ... bench: 439,824 ns/iter (+/- 44,580)

Remove Fast Path + Previous (Does little).

running 4 tests test atof_real_f32_lexical ... bench: 3,567,233 ns/iter (+/- 194,263) test atof_real_f32_parse ... bench: 7,482,216 ns/iter (+/- 320,260) test atof_real_f64_lexical ... bench: 211,949 ns/iter (+/- 11,644) test atof_real_f64_parse ... bench: 438,263 ns/iter (+/- 46,988)

Remove all float processing (baseline)

running 4 tests test atof_real_f32_lexical ... bench: 3,609,686 ns/iter (+/- 212,827) test atof_real_f32_parse ... bench: 7,596,774 ns/iter (+/- 797,073) test atof_real_f64_lexical ... bench: 220,805 ns/iter (+/- 37,128) test atof_real_f64_parse ... bench: 439,415 ns/iter (+/- 57,691)

Conclusion

Almost all of the overhead is in parse_mantissa.