Hi, Regarding issue #8937 (https://github.com/rust-lang/rust/issues/8937), add a BigDecimal type, there is discussion about wrapping GMP, and even possibly replacing Rust's current BigInt with this wrapper. One comment mentions that Rust's current BigInt is ~100x slower than GMP in some cases. However, GMP is licensed under LGPL.
1. Are there benchmarks displayed somewhere for comparison of BigInt vs. GMP? It would be helpful to know cases from where the factor 100x came. 2. Haskell's GHC (https://ghc.haskell.org/trac/ghc/wiki/ReplacingGMPNotes) takes the approach of having two implementations available for use: a pure-Haskell implementation and a wrapper around GMP. The former does not have the performance of the latter yet has GHC's BSD-style license. Would there be any objections to having a pure-Rust implementation and a GMP-wrapper implementation which users could choose? Starting out, the pure-Rust implementation would not have the years of optimization which GMP has, but effort could be made to improve the pure-Rust performance. Thanks. _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
