Mention that Fill supports floats
#1183
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dhardy
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Sep 16, 2021
| @@ -158,7 +158,7 @@ use crate::Rng; | |||
| /// * Tuples (up to 12 elements): each element is generated sequentially. | |||
| /// * Arrays (up to 32 elements): each element is generated sequentially; | |||
| /// see also [`Rng::fill`] which supports arbitrary array length for integer | |||
| /// types and tends to be faster for `u32` and smaller types. | |||
| /// and float types and tends to be faster for `u32` and smaller types. | |||
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This is a little ambiguous: where exactly is fill faster and where does it produce different results? This doc was written before fill supported floats (for AsBytesMut trait IIRC).
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Fair enough, this should be verified in benchmarks as well.
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@vks we have benches:
$ cargo +nightly bench --bench misc gen_1kb
running 8 tests
test gen_1kb_u16_fill ... bench: 137 ns/iter (+/- 0) = 7474 MB/s
test gen_1kb_u16_gen_array ... bench: 445 ns/iter (+/- 2) = 2301 MB/s
test gen_1kb_u16_iter_repeat ... bench: 485 ns/iter (+/- 0) = 2111 MB/s
test gen_1kb_u16_sample_iter ... bench: 660 ns/iter (+/- 2) = 1551 MB/s
test gen_1kb_u64_fill ... bench: 128 ns/iter (+/- 2) = 8000 MB/s
test gen_1kb_u64_gen_array ... bench: 146 ns/iter (+/- 0) = 7013 MB/s
test gen_1kb_u64_iter_repeat ... bench: 123 ns/iter (+/- 0) = 8325 MB/s
test gen_1kb_u64_sample_iter ... bench: 150 ns/iter (+/- 1) = 6826 MB/s
test result: ok. 0 passed; 0 failed; 0 ignored; 8 measured; 6 filtered out; finished in 8.52s
dhardy
approved these changes
Feb 11, 2022
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This is a followup to #269.