bitsvec
| Crates.io | bitsvec |
| lib.rs | bitsvec |
| version | 0.1.1 |
| source | src |
| created_at | 2022-02-13 14:14:32.286411 |
| updated_at | 2022-02-15 09:42:47.272817 |
| description | A bit vector with the Rust standard library's portable SIMD API |
| homepage | |
| repository | https://github.com/psiace/bitsvec |
| max_upload_size | |
| id | 531777 |
| size | 83,134 |
Chojan Shang (PsiACE)
documentation
https://docs.rs/bitsvec
README
Usage
Add bitsvec to Cargo.toml:
bitsvec = "x.y.z"
Write some code like this:
let mut bitvec = BitVec::ones(1000); // create a bitvec contains 0 ..= 999
bitvec.set(900, false); // delete 900 from bitvec
bitvec.set(1200, true); // add 1200 to bitvec (and expand bitvec to length 1201)
let bitvec2 = BitVec::ones(1000);
let new_bitvec = bitvec.and_cloned(&bitvec2); // and operation, without consume
let new_bitvec2 = bitvec & bitvec2; // and operation, consume both bitvec
// Operation Supported:
// and, or, xor, not, eq, eq_left
assert_eq!(new_bitvec, new_bitvec2);
Performance
Compared on AMD Ryzen 9 5900hs, aginst:
$ cargo bench
bitsvec(this crate) time: [330.34 ns 330.75 ns 331.18 ns]
Found 6 outliers among 100 measurements (6.00%)
4 (4.00%) high mild
2 (2.00%) high severe
bitsvec_u16x8(this crate)
time: [332.23 ns 333.90 ns 335.98 ns]
Found 16 outliers among 100 measurements (16.00%)
6 (6.00%) high mild
10 (10.00%) high severe
bitvec_simd 0.15.0 time: [371.96 ns 372.23 ns 372.53 ns]
Found 6 outliers among 100 measurements (6.00%)
4 (4.00%) high mild
2 (2.00%) high severe
bitvec_simd 0.15.0 u16x8
time: [578.38 ns 578.68 ns 579.01 ns]
Found 7 outliers among 100 measurements (7.00%)
6 (6.00%) high mild
1 (1.00%) high severe
bitvector_simd 0.2.2 time: [288.55 ns 289.11 ns 289.64 ns]
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild
bit-vec 0.6 time: [1.5177 us 1.5200 us 1.5224 us]
bitvec 1.0 time: [32.119 us 32.254 us 32.390 us]
bitsvec(this crate) with creation
time: [888.59 ns 889.45 ns 890.39 ns]
Found 10 outliers among 100 measurements (10.00%)
9 (9.00%) high mild
1 (1.00%) high severe
bitsvec_u16x8(this crate) with creation
time: [1.1006 us 1.1031 us 1.1059 us]
Found 11 outliers among 100 measurements (11.00%)
8 (8.00%) high mild
3 (3.00%) high severe
bitvec_simd 0.15.0 with creation
time: [970.09 ns 970.82 ns 971.67 ns]
Found 12 outliers among 100 measurements (12.00%)
10 (10.00%) high mild
2 (2.00%) high severe
bitvec_simd 0.15.0 u16x8 with creation
time: [1.1158 us 1.1185 us 1.1215 us]
Found 8 outliers among 100 measurements (8.00%)
6 (6.00%) low mild
2 (2.00%) high mild
bitvector_simd 0.2.2 with creation
time: [736.46 ns 737.95 ns 739.49 ns]
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high severe
bit-vec 0.6 with creation
time: [1.6515 us 1.6527 us 1.6539 us]
Found 2 outliers among 100 measurements (2.00%)
2 (2.00%) high mild
bitvec 1.0 with creation
time: [28.484 us 28.501 us 28.518 us]
Found 20 outliers among 100 measurements (20.00%)
15 (15.00%) low severe
3 (3.00%) high mild
2 (2.00%) high severe
bitsvec(this crate) resize false
time: [676.30 ns 677.13 ns 677.93 ns]
bitsvec_u16x8(this crate) resize false
time: [618.70 ns 619.73 ns 620.98 ns]
Found 2 outliers among 100 measurements (2.00%)
1 (1.00%) high mild
1 (1.00%) high severe
bitvec_simd 0.15.0 resize false
time: [676.27 ns 677.96 ns 679.66 ns]
Found 4 outliers among 100 measurements (4.00%)
3 (3.00%) high mild
1 (1.00%) high severe
bitvec_simd 0.15.0 u16x8 resize false
time: [472.84 ns 473.76 ns 474.71 ns]
Found 2 outliers among 100 measurements (2.00%)
2 (2.00%) high mild
bitvec 1.0 resize false time: [108.23 us 108.29 us 108.36 us]
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
bitsvec(this crate) resize true
time: [679.71 ns 680.66 ns 681.75 ns]
Found 9 outliers among 100 measurements (9.00%)
7 (7.00%) high mild
2 (2.00%) high severe
bitsvec_u16x8(this crate) resize true
time: [876.21 ns 876.89 ns 877.71 ns]
Found 8 outliers among 100 measurements (8.00%)
6 (6.00%) high mild
2 (2.00%) high severe
bitvec_simd 0.15.0 resize true
time: [672.44 ns 672.82 ns 673.24 ns]
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
bitvec_simd 0.15.0 u16x8 resize true
time: [748.77 ns 751.48 ns 754.59 ns]
bitvec 1.0 resize true time: [100.50 us 100.63 us 100.75 us]
Credits
Most code of this crate is from (https://github.com/GCCFeli/bitvec_simd). On top of that, some changes were made.
License
This library is licensed under either of:
- MIT license LICENSE-MIT or http://opensource.org/licenses/MIT
- Apache License 2.0 LICENSE-APACHE or https://opensource.org/licenses/Apache-2.0
at your option.