Dec19x19::from_str(...) is too slow

[xczh]

Dec19x19::from_str() is 45 times slower than rust_decimal::from_str().

[wdanilo]

Interesting! Thanks a lot for the comparison. I'll check it out and report back!

[WuBingzheng]

@xczh If you care about the performance of loading from string, you could try primitive_fixed_point_decimal, which is also a fixed-point decimal crate.

It performs similarly to rust_decimal in loading from string.

See the benchmark for details.