XxHash3_64 performance degrades when jumping from 240 to 241 bytes of input.

[parthpatel]

I ran following test as shown in [0]. The results are in [1]. You can see that the xxhash algorithm takes constant 45ms time until 240 byte input, and then for 241 byte input, it jumps to 572ms. This looks odd, may be I am doing something wrong?

[0]

Cargo.toml

[dependencies]
twox-hash = "2.0.1"
rand = "0.8.5"
criterion = "0.5.1"

[dependencies.xxhash-rust]
version = "0.8.12"
features = ["xxh3", "const_xxh3"]

[profile.dev]
opt-level = 3

rustc features

 % rustc --print=cfg                                                                             
debug_assertions
panic="unwind"
target_abi=""
target_arch="x86_64"
target_endian="little"
target_env="gnu"
target_family="unix"
target_feature="fxsr"
target_feature="sse"
target_feature="sse2"
target_has_atomic="16"
target_has_atomic="32"
target_has_atomic="64"
target_has_atomic="8"
target_has_atomic="ptr"
target_os="linux"
target_pointer_width="64"
target_vendor="unknown"
unix

Code

#[test]
fn test_hash_speeds() {
    { 1..256 }.for_each(|x| {
        test_hash_speeds_per_size(x);
    });

    [512, 1024, 2048].iter().for_each(|x| {
        test_hash_speeds_per_size(*x);
    });
}

fn test_hash_speeds_per_size(size: i32) {
    let repetitions = 10000000;
    // < 128 bytes
    let mut samples127: Vec<Vec<u8>> = Vec::new();
    { 1..11 }.for_each(|_| {
        let mut temp: Vec<u8> = Vec::new();
        { 1..size }.into_iter().for_each(|_| {
            temp.push(rand::random());
        });
        samples127.push(temp);
    });

    test_hash_speed(samples127, repetitions);
}

fn test_hash_speed(data: Vec<Vec<u8>>, total: usize) {
    let seed = 12897;
    let seed2 = 13297;
    let mut xxh3_hasher: Xxh3 = Xxh3::with_seed(seed);
    let mut sip_hasher = std::hash::SipHasher::new_with_keys(seed, seed2);

    let data_len = data[0].len();
    let mut new_data: Vec<&[u8]> = Vec::new();
    data.iter().for_each(|x| {
        new_data.push(x.as_slice());
    });

    let mut a: u64 = 0;

    use std::time::SystemTime;
    // siphasher
    let mut now = SystemTime::now();
    for _i in 1..total {
        sip_hasher.write(new_data[_i % new_data.len()]);
        a = a.wrapping_add(sip_hasher.finish());
    }
    let siphasher_then = now.elapsed().unwrap().as_millis();

    // xxh3_64 oneshot
    now = SystemTime::now();

    for _i in 1..total {
        a = a.wrapping_add(xxh3_64_with_seed(new_data[_i % new_data.len()], seed));
    }
    let xxh3_64_oneshot_then = now.elapsed().unwrap().as_millis();

    // xxh3_64 streaming
    now = SystemTime::now();
    for _i in 1..total {
        xxh3_hasher.write(new_data[_i % new_data.len()]);
        a = a.wrapping_add(xxh3_hasher.finish());
    }
    let xxh3_64_streaming_then = now.elapsed().unwrap().as_millis();

    // twox_hash oneshot
    now = SystemTime::now();
    for _i in 1..total {
        a = a.wrapping_add(twox_hash::XxHash3_64::oneshot_with_seed(
            seed,
            new_data[_i % new_data.len()],
        ));
    }
    let twox_oneshot_then = now.elapsed().unwrap().as_millis();

    println!("For {} datalen and {} iterations: \n sip_hasher {}ms \n xxhash3-rust oneshot {}ms \n xxhash3-rust streaming {}ms \n twoxhash oneshot {}ms ", data_len, total, siphasher_then, xxh3_64_oneshot_then, xxh3_64_streaming_then, twox_oneshot_then);
}

[1]

For 0 datalen and 10000000 iterations: 
 sip_hasher 48ms 
 xxhash3-rust oneshot 107ms 
 xxhash3-rust streaming 193ms 
 twoxhash oneshot 45ms 
For 1 datalen and 10000000 iterations: 
 sip_hasher 49ms 
 xxhash3-rust oneshot 111ms 
 xxhash3-rust streaming 694ms 
 twoxhash oneshot 45ms 
For 2 datalen and 10000000 iterations: 
 sip_hasher 57ms 
 xxhash3-rust oneshot 111ms 
 xxhash3-rust streaming 703ms 
 twoxhash oneshot 45ms 
For 3 datalen and 10000000 iterations: 
 sip_hasher 60ms 
 xxhash3-rust oneshot 111ms 
 xxhash3-rust streaming 710ms 
 twoxhash oneshot 45ms 
For 4 datalen and 10000000 iterations: 
 sip_hasher 67ms 
 xxhash3-rust oneshot 143ms 
 xxhash3-rust streaming 710ms 
 twoxhash oneshot 45ms 
For 5 datalen and 10000000 iterations: 
 sip_hasher 69ms 
 xxhash3-rust oneshot 143ms 
 xxhash3-rust streaming 721ms 
 twoxhash oneshot 45ms 
For 6 datalen and 10000000 iterations: 
 sip_hasher 80ms 
 xxhash3-rust oneshot 143ms 
 xxhash3-rust streaming 722ms 
 twoxhash oneshot 45ms 
For 7 datalen and 10000000 iterations: 
 sip_hasher 83ms 
 xxhash3-rust oneshot 143ms 
 xxhash3-rust streaming 730ms 
 twoxhash oneshot 45ms 
For 8 datalen and 10000000 iterations: 
 sip_hasher 67ms 
 xxhash3-rust oneshot 143ms 
 xxhash3-rust streaming 718ms 
 twoxhash oneshot 45ms 
For 9 datalen and 10000000 iterations: 
 sip_hasher 90ms 
 xxhash3-rust oneshot 160ms 
 xxhash3-rust streaming 732ms 
 twoxhash oneshot 45ms 
For 10 datalen and 10000000 iterations: 
 sip_hasher 95ms 
 xxhash3-rust oneshot 159ms 
 xxhash3-rust streaming 729ms 
 twoxhash oneshot 45ms 
For 11 datalen and 10000000 iterations: 
 sip_hasher 98ms 
 xxhash3-rust oneshot 161ms 
 xxhash3-rust streaming 728ms 
 twoxhash oneshot 45ms 
For 12 datalen and 10000000 iterations: 
 sip_hasher 96ms 
 xxhash3-rust oneshot 160ms 
 xxhash3-rust streaming 727ms 
 twoxhash oneshot 45ms 
For 13 datalen and 10000000 iterations: 
 sip_hasher 103ms 
 xxhash3-rust oneshot 161ms 
 xxhash3-rust streaming 741ms 
 twoxhash oneshot 45ms 
For 14 datalen and 10000000 iterations: 
 sip_hasher 105ms 
 xxhash3-rust oneshot 160ms 
 xxhash3-rust streaming 739ms 
 twoxhash oneshot 45ms 
For 15 datalen and 10000000 iterations: 
 sip_hasher 107ms 
 xxhash3-rust oneshot 160ms 
 xxhash3-rust streaming 741ms 
 twoxhash oneshot 45ms 
For 16 datalen and 10000000 iterations: 
 sip_hasher 83ms 
 xxhash3-rust oneshot 160ms 
 xxhash3-rust streaming 741ms 
 twoxhash oneshot 45ms 
For 17 datalen and 10000000 iterations: 
 sip_hasher 112ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 749ms 
 twoxhash oneshot 45ms 
For 18 datalen and 10000000 iterations: 
 sip_hasher 111ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 749ms 
 twoxhash oneshot 45ms 
For 19 datalen and 10000000 iterations: 
 sip_hasher 114ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 752ms 
 twoxhash oneshot 45ms 
For 20 datalen and 10000000 iterations: 
 sip_hasher 104ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 747ms 
 twoxhash oneshot 45ms 
For 21 datalen and 10000000 iterations: 
 sip_hasher 122ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 753ms 
 twoxhash oneshot 45ms 
For 22 datalen and 10000000 iterations: 
 sip_hasher 119ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 755ms 
 twoxhash oneshot 45ms 
For 23 datalen and 10000000 iterations: 
 sip_hasher 124ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 759ms 
 twoxhash oneshot 45ms 
For 24 datalen and 10000000 iterations: 
 sip_hasher 100ms 
 xxhash3-rust oneshot 187ms 
 xxhash3-rust streaming 755ms 
 twoxhash oneshot 45ms 
For 25 datalen and 10000000 iterations: 
 sip_hasher 136ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 771ms 
 twoxhash oneshot 45ms 
For 26 datalen and 10000000 iterations: 
 sip_hasher 133ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 774ms 
 twoxhash oneshot 45ms 
For 27 datalen and 10000000 iterations: 
 sip_hasher 139ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 780ms 
 twoxhash oneshot 45ms 
For 28 datalen and 10000000 iterations: 
 sip_hasher 119ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 774ms 
 twoxhash oneshot 45ms 
For 29 datalen and 10000000 iterations: 
 sip_hasher 142ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 779ms 
 twoxhash oneshot 45ms 
For 30 datalen and 10000000 iterations: 
 sip_hasher 148ms 
 xxhash3-rust oneshot 188ms 
 xxhash3-rust streaming 780ms 
 twoxhash oneshot 45ms 
For 31 datalen and 10000000 iterations: 
 sip_hasher 154ms 
 xxhash3-rust oneshot 187ms 
 xxhash3-rust streaming 781ms 
 twoxhash oneshot 45ms 
For 32 datalen and 10000000 iterations: 
 sip_hasher 113ms 
 xxhash3-rust oneshot 187ms 
 xxhash3-rust streaming 767ms 
 twoxhash oneshot 45ms 
For 33 datalen and 10000000 iterations: 
 sip_hasher 151ms 
 xxhash3-rust oneshot 297ms 
 xxhash3-rust streaming 783ms 
 twoxhash oneshot 45ms 
For 34 datalen and 10000000 iterations: 
 sip_hasher 157ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 787ms 
 twoxhash oneshot 45ms 
For 35 datalen and 10000000 iterations: 
 sip_hasher 160ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 794ms 
 twoxhash oneshot 45ms 
For 36 datalen and 10000000 iterations: 
 sip_hasher 142ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 792ms 
 twoxhash oneshot 45ms 
For 37 datalen and 10000000 iterations: 
 sip_hasher 162ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 804ms 
 twoxhash oneshot 45ms 
For 38 datalen and 10000000 iterations: 
 sip_hasher 164ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 807ms 
 twoxhash oneshot 45ms 
For 39 datalen and 10000000 iterations: 
 sip_hasher 166ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 805ms 
 twoxhash oneshot 45ms 
For 40 datalen and 10000000 iterations: 
 sip_hasher 135ms 
 xxhash3-rust oneshot 297ms 
 xxhash3-rust streaming 798ms 
 twoxhash oneshot 45ms 
For 41 datalen and 10000000 iterations: 
 sip_hasher 168ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 807ms 
 twoxhash oneshot 45ms 
For 42 datalen and 10000000 iterations: 
 sip_hasher 169ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 809ms 
 twoxhash oneshot 45ms 
For 43 datalen and 10000000 iterations: 
 sip_hasher 170ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 817ms 
 twoxhash oneshot 45ms 
For 44 datalen and 10000000 iterations: 
 sip_hasher 164ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 816ms 
 twoxhash oneshot 45ms 
For 45 datalen and 10000000 iterations: 
 sip_hasher 173ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 817ms 
 twoxhash oneshot 45ms 
For 46 datalen and 10000000 iterations: 
 sip_hasher 173ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 820ms 
 twoxhash oneshot 45ms 
For 47 datalen and 10000000 iterations: 
 sip_hasher 174ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 825ms 
 twoxhash oneshot 45ms 
For 48 datalen and 10000000 iterations: 
 sip_hasher 161ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 813ms 
 twoxhash oneshot 45ms 
For 49 datalen and 10000000 iterations: 
 sip_hasher 177ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 825ms 
 twoxhash oneshot 45ms 
For 50 datalen and 10000000 iterations: 
 sip_hasher 178ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 829ms 
 twoxhash oneshot 45ms 
For 51 datalen and 10000000 iterations: 
 sip_hasher 179ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 839ms 
 twoxhash oneshot 45ms 
For 52 datalen and 10000000 iterations: 
 sip_hasher 174ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 834ms 
 twoxhash oneshot 45ms 
For 53 datalen and 10000000 iterations: 
 sip_hasher 182ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 843ms 
 twoxhash oneshot 45ms 
For 54 datalen and 10000000 iterations: 
 sip_hasher 181ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 846ms 
 twoxhash oneshot 45ms 
For 55 datalen and 10000000 iterations: 
 sip_hasher 186ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 848ms 
 twoxhash oneshot 45ms 
For 56 datalen and 10000000 iterations: 
 sip_hasher 171ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 840ms 
 twoxhash oneshot 45ms 
For 57 datalen and 10000000 iterations: 
 sip_hasher 189ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 851ms 
 twoxhash oneshot 45ms 
For 58 datalen and 10000000 iterations: 
 sip_hasher 188ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 857ms 
 twoxhash oneshot 45ms 
For 59 datalen and 10000000 iterations: 
 sip_hasher 191ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 861ms 
 twoxhash oneshot 45ms 
For 60 datalen and 10000000 iterations: 
 sip_hasher 183ms 
 xxhash3-rust oneshot 297ms 
 xxhash3-rust streaming 857ms 
 twoxhash oneshot 45ms 
For 61 datalen and 10000000 iterations: 
 sip_hasher 193ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 866ms 
 twoxhash oneshot 45ms 
For 62 datalen and 10000000 iterations: 
 sip_hasher 196ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 864ms 
 twoxhash oneshot 45ms 
For 63 datalen and 10000000 iterations: 
 sip_hasher 197ms 
 xxhash3-rust oneshot 296ms 
 xxhash3-rust streaming 865ms 
 twoxhash oneshot 45ms 
For 64 datalen and 10000000 iterations: 
 sip_hasher 180ms 
 xxhash3-rust oneshot 295ms 
 xxhash3-rust streaming 862ms 
 twoxhash oneshot 45ms 
For 65 datalen and 10000000 iterations: 
 sip_hasher 200ms 
 xxhash3-rust oneshot 400ms 
 xxhash3-rust streaming 886ms 
 twoxhash oneshot 45ms 
For 66 datalen and 10000000 iterations: 
 sip_hasher 204ms 
 xxhash3-rust oneshot 400ms 
 xxhash3-rust streaming 889ms 
 twoxhash oneshot 45ms 
For 67 datalen and 10000000 iterations: 
 sip_hasher 205ms 
 xxhash3-rust oneshot 400ms 
 xxhash3-rust streaming 894ms 
 twoxhash oneshot 45ms 
For 68 datalen and 10000000 iterations: 
 sip_hasher 198ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 895ms 
 twoxhash oneshot 45ms 
For 69 datalen and 10000000 iterations: 
 sip_hasher 208ms 
 xxhash3-rust oneshot 400ms 
 xxhash3-rust streaming 898ms 
 twoxhash oneshot 45ms 
For 70 datalen and 10000000 iterations: 
 sip_hasher 209ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 903ms 
 twoxhash oneshot 45ms 
For 71 datalen and 10000000 iterations: 
 sip_hasher 213ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 909ms 
 twoxhash oneshot 45ms 
For 72 datalen and 10000000 iterations: 
 sip_hasher 196ms 
 xxhash3-rust oneshot 397ms 
 xxhash3-rust streaming 897ms 
 twoxhash oneshot 45ms 
For 73 datalen and 10000000 iterations: 
 sip_hasher 215ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 916ms 
 twoxhash oneshot 45ms 
For 74 datalen and 10000000 iterations: 
 sip_hasher 218ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 912ms 
 twoxhash oneshot 45ms 
For 75 datalen and 10000000 iterations: 
 sip_hasher 220ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 913ms 
 twoxhash oneshot 45ms 
For 76 datalen and 10000000 iterations: 
 sip_hasher 213ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 917ms 
 twoxhash oneshot 45ms 
For 77 datalen and 10000000 iterations: 
 sip_hasher 225ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 926ms 
 twoxhash oneshot 45ms 
For 78 datalen and 10000000 iterations: 
 sip_hasher 226ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 930ms 
 twoxhash oneshot 45ms 
For 79 datalen and 10000000 iterations: 
 sip_hasher 230ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 930ms 
 twoxhash oneshot 45ms 
For 80 datalen and 10000000 iterations: 
 sip_hasher 210ms 
 xxhash3-rust oneshot 397ms 
 xxhash3-rust streaming 916ms 
 twoxhash oneshot 45ms 
For 81 datalen and 10000000 iterations: 
 sip_hasher 233ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 933ms 
 twoxhash oneshot 45ms 
For 82 datalen and 10000000 iterations: 
 sip_hasher 234ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 937ms 
 twoxhash oneshot 45ms 
For 83 datalen and 10000000 iterations: 
 sip_hasher 238ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 938ms 
 twoxhash oneshot 45ms 
For 84 datalen and 10000000 iterations: 
 sip_hasher 229ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 940ms 
 twoxhash oneshot 45ms 
For 85 datalen and 10000000 iterations: 
 sip_hasher 241ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 938ms 
 twoxhash oneshot 45ms 
For 86 datalen and 10000000 iterations: 
 sip_hasher 242ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 943ms 
 twoxhash oneshot 45ms 
For 87 datalen and 10000000 iterations: 
 sip_hasher 246ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 950ms 
 twoxhash oneshot 45ms 
For 88 datalen and 10000000 iterations: 
 sip_hasher 226ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 942ms 
 twoxhash oneshot 45ms 
For 89 datalen and 10000000 iterations: 
 sip_hasher 248ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 956ms 
 twoxhash oneshot 45ms 
For 90 datalen and 10000000 iterations: 
 sip_hasher 250ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 957ms 
 twoxhash oneshot 45ms 
For 91 datalen and 10000000 iterations: 
 sip_hasher 253ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 961ms 
 twoxhash oneshot 45ms 
For 92 datalen and 10000000 iterations: 
 sip_hasher 246ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 960ms 
 twoxhash oneshot 45ms 
For 93 datalen and 10000000 iterations: 
 sip_hasher 260ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 968ms 
 twoxhash oneshot 45ms 
For 94 datalen and 10000000 iterations: 
 sip_hasher 259ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 972ms 
 twoxhash oneshot 45ms 
For 95 datalen and 10000000 iterations: 
 sip_hasher 261ms 
 xxhash3-rust oneshot 399ms 
 xxhash3-rust streaming 972ms 
 twoxhash oneshot 45ms 
For 96 datalen and 10000000 iterations: 
 sip_hasher 243ms 
 xxhash3-rust oneshot 398ms 
 xxhash3-rust streaming 961ms 
 twoxhash oneshot 45ms 
For 97 datalen and 10000000 iterations: 
 sip_hasher 266ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 976ms 
 twoxhash oneshot 45ms 
For 98 datalen and 10000000 iterations: 
 sip_hasher 268ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 982ms 
 twoxhash oneshot 45ms 
For 99 datalen and 10000000 iterations: 
 sip_hasher 271ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 986ms 
 twoxhash oneshot 45ms 
For 100 datalen and 10000000 iterations: 
 sip_hasher 263ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 984ms 
 twoxhash oneshot 45ms 
For 101 datalen and 10000000 iterations: 
 sip_hasher 275ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 989ms 
 twoxhash oneshot 45ms 
For 102 datalen and 10000000 iterations: 
 sip_hasher 274ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 996ms 
 twoxhash oneshot 45ms 
For 103 datalen and 10000000 iterations: 
 sip_hasher 279ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 998ms 
 twoxhash oneshot 45ms 
For 104 datalen and 10000000 iterations: 
 sip_hasher 260ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 993ms 
 twoxhash oneshot 45ms 
For 105 datalen and 10000000 iterations: 
 sip_hasher 283ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1001ms 
 twoxhash oneshot 45ms 
For 106 datalen and 10000000 iterations: 
 sip_hasher 284ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1002ms 
 twoxhash oneshot 45ms 
For 107 datalen and 10000000 iterations: 
 sip_hasher 288ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 1007ms 
 twoxhash oneshot 45ms 
For 108 datalen and 10000000 iterations: 
 sip_hasher 278ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 1013ms 
 twoxhash oneshot 45ms 
For 109 datalen and 10000000 iterations: 
 sip_hasher 292ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1019ms 
 twoxhash oneshot 45ms 
For 110 datalen and 10000000 iterations: 
 sip_hasher 292ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1017ms 
 twoxhash oneshot 45ms 
For 111 datalen and 10000000 iterations: 
 sip_hasher 295ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1021ms 
 twoxhash oneshot 45ms 
For 112 datalen and 10000000 iterations: 
 sip_hasher 276ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 1010ms 
 twoxhash oneshot 45ms 
For 113 datalen and 10000000 iterations: 
 sip_hasher 301ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1027ms 
 twoxhash oneshot 45ms 
For 114 datalen and 10000000 iterations: 
 sip_hasher 298ms 
 xxhash3-rust oneshot 498ms 
 xxhash3-rust streaming 1029ms 
 twoxhash oneshot 45ms 
For 115 datalen and 10000000 iterations: 
 sip_hasher 305ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1038ms 
 twoxhash oneshot 45ms 
For 116 datalen and 10000000 iterations: 
 sip_hasher 294ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1034ms 
 twoxhash oneshot 45ms 
For 117 datalen and 10000000 iterations: 
 sip_hasher 307ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1036ms 
 twoxhash oneshot 45ms 
For 118 datalen and 10000000 iterations: 
 sip_hasher 307ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1041ms 
 twoxhash oneshot 45ms 
For 119 datalen and 10000000 iterations: 
 sip_hasher 311ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1043ms 
 twoxhash oneshot 45ms 
For 120 datalen and 10000000 iterations: 
 sip_hasher 292ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 1045ms 
 twoxhash oneshot 45ms 
For 121 datalen and 10000000 iterations: 
 sip_hasher 315ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1051ms 
 twoxhash oneshot 45ms 
For 122 datalen and 10000000 iterations: 
 sip_hasher 316ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1052ms 
 twoxhash oneshot 45ms 
For 123 datalen and 10000000 iterations: 
 sip_hasher 319ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1055ms 
 twoxhash oneshot 45ms 
For 124 datalen and 10000000 iterations: 
 sip_hasher 311ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1055ms 
 twoxhash oneshot 45ms 
For 125 datalen and 10000000 iterations: 
 sip_hasher 324ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1057ms 
 twoxhash oneshot 45ms 
For 126 datalen and 10000000 iterations: 
 sip_hasher 325ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1058ms 
 twoxhash oneshot 45ms 
For 127 datalen and 10000000 iterations: 
 sip_hasher 328ms 
 xxhash3-rust oneshot 497ms 
 xxhash3-rust streaming 1061ms 
 twoxhash oneshot 45ms 
For 128 datalen and 10000000 iterations: 
 sip_hasher 307ms 
 xxhash3-rust oneshot 496ms 
 xxhash3-rust streaming 1143ms 
 twoxhash oneshot 45ms 
For 129 datalen and 10000000 iterations: 
 sip_hasher 331ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1065ms 
 twoxhash oneshot 45ms 
For 130 datalen and 10000000 iterations: 
 sip_hasher 333ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1070ms 
 twoxhash oneshot 45ms 
For 131 datalen and 10000000 iterations: 
 sip_hasher 338ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1076ms 
 twoxhash oneshot 45ms 
For 132 datalen and 10000000 iterations: 
 sip_hasher 326ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1077ms 
 twoxhash oneshot 45ms 
For 133 datalen and 10000000 iterations: 
 sip_hasher 339ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1084ms 
 twoxhash oneshot 45ms 
For 134 datalen and 10000000 iterations: 
 sip_hasher 341ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1086ms 
 twoxhash oneshot 45ms 
For 135 datalen and 10000000 iterations: 
 sip_hasher 344ms 
 xxhash3-rust oneshot 544ms 
 xxhash3-rust streaming 1088ms 
 twoxhash oneshot 45ms 
For 136 datalen and 10000000 iterations: 
 sip_hasher 324ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1086ms 
 twoxhash oneshot 45ms 
For 137 datalen and 10000000 iterations: 
 sip_hasher 348ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1097ms 
 twoxhash oneshot 45ms 
For 138 datalen and 10000000 iterations: 
 sip_hasher 350ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1101ms 
 twoxhash oneshot 45ms 
For 139 datalen and 10000000 iterations: 
 sip_hasher 354ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1104ms 
 twoxhash oneshot 45ms 
For 140 datalen and 10000000 iterations: 
 sip_hasher 343ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1105ms 
 twoxhash oneshot 45ms 
For 141 datalen and 10000000 iterations: 
 sip_hasher 355ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1112ms 
 twoxhash oneshot 45ms 
For 142 datalen and 10000000 iterations: 
 sip_hasher 355ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1111ms 
 twoxhash oneshot 45ms 
For 143 datalen and 10000000 iterations: 
 sip_hasher 361ms 
 xxhash3-rust oneshot 543ms 
 xxhash3-rust streaming 1118ms 
 twoxhash oneshot 45ms 
For 144 datalen and 10000000 iterations: 
 sip_hasher 339ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1099ms 
 twoxhash oneshot 45ms 
For 145 datalen and 10000000 iterations: 
 sip_hasher 369ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1119ms 
 twoxhash oneshot 45ms 
For 146 datalen and 10000000 iterations: 
 sip_hasher 365ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1121ms 
 twoxhash oneshot 45ms 
For 147 datalen and 10000000 iterations: 
 sip_hasher 368ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1127ms 
 twoxhash oneshot 45ms 
For 148 datalen and 10000000 iterations: 
 sip_hasher 359ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1129ms 
 twoxhash oneshot 45ms 
For 149 datalen and 10000000 iterations: 
 sip_hasher 372ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1129ms 
 twoxhash oneshot 45ms 
For 150 datalen and 10000000 iterations: 
 sip_hasher 378ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1132ms 
 twoxhash oneshot 45ms 
For 151 datalen and 10000000 iterations: 
 sip_hasher 376ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1146ms 
 twoxhash oneshot 45ms 
For 152 datalen and 10000000 iterations: 
 sip_hasher 355ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1130ms 
 twoxhash oneshot 45ms 
For 153 datalen and 10000000 iterations: 
 sip_hasher 378ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1144ms 
 twoxhash oneshot 45ms 
For 154 datalen and 10000000 iterations: 
 sip_hasher 380ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1145ms 
 twoxhash oneshot 45ms 
For 155 datalen and 10000000 iterations: 
 sip_hasher 392ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1147ms 
 twoxhash oneshot 45ms 
For 156 datalen and 10000000 iterations: 
 sip_hasher 376ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1146ms 
 twoxhash oneshot 45ms 
For 157 datalen and 10000000 iterations: 
 sip_hasher 389ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1155ms 
 twoxhash oneshot 45ms 
For 158 datalen and 10000000 iterations: 
 sip_hasher 390ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1155ms 
 twoxhash oneshot 45ms 
For 159 datalen and 10000000 iterations: 
 sip_hasher 393ms 
 xxhash3-rust oneshot 599ms 
 xxhash3-rust streaming 1156ms 
 twoxhash oneshot 45ms 
For 160 datalen and 10000000 iterations: 
 sip_hasher 372ms 
 xxhash3-rust oneshot 649ms 
 xxhash3-rust streaming 1139ms 
 twoxhash oneshot 45ms 
For 161 datalen and 10000000 iterations: 
 sip_hasher 395ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1162ms 
 twoxhash oneshot 45ms 
For 162 datalen and 10000000 iterations: 
 sip_hasher 397ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1164ms 
 twoxhash oneshot 45ms 
For 163 datalen and 10000000 iterations: 
 sip_hasher 400ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1172ms 
 twoxhash oneshot 45ms 
For 164 datalen and 10000000 iterations: 
 sip_hasher 392ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1169ms 
 twoxhash oneshot 45ms 
For 165 datalen and 10000000 iterations: 
 sip_hasher 404ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1174ms 
 twoxhash oneshot 45ms 
For 166 datalen and 10000000 iterations: 
 sip_hasher 406ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1178ms 
 twoxhash oneshot 45ms 
For 167 datalen and 10000000 iterations: 
 sip_hasher 410ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1180ms 
 twoxhash oneshot 45ms 
For 168 datalen and 10000000 iterations: 
 sip_hasher 388ms 
 xxhash3-rust oneshot 649ms 
 xxhash3-rust streaming 1175ms 
 twoxhash oneshot 45ms 
For 169 datalen and 10000000 iterations: 
 sip_hasher 413ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1186ms 
 twoxhash oneshot 45ms 
For 170 datalen and 10000000 iterations: 
 sip_hasher 412ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1187ms 
 twoxhash oneshot 45ms 
For 171 datalen and 10000000 iterations: 
 sip_hasher 417ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1189ms 
 twoxhash oneshot 45ms 
For 172 datalen and 10000000 iterations: 
 sip_hasher 408ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1197ms 
 twoxhash oneshot 45ms 
For 173 datalen and 10000000 iterations: 
 sip_hasher 419ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1199ms 
 twoxhash oneshot 45ms 
For 174 datalen and 10000000 iterations: 
 sip_hasher 423ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1200ms 
 twoxhash oneshot 45ms 
For 175 datalen and 10000000 iterations: 
 sip_hasher 427ms 
 xxhash3-rust oneshot 650ms 
 xxhash3-rust streaming 1202ms 
 twoxhash oneshot 45ms 
For 176 datalen and 10000000 iterations: 
 sip_hasher 405ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1185ms 
 twoxhash oneshot 45ms 
For 177 datalen and 10000000 iterations: 
 sip_hasher 427ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1207ms 
 twoxhash oneshot 45ms 
For 178 datalen and 10000000 iterations: 
 sip_hasher 429ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1215ms 
 twoxhash oneshot 45ms 
For 179 datalen and 10000000 iterations: 
 sip_hasher 431ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1222ms 
 twoxhash oneshot 45ms 
For 180 datalen and 10000000 iterations: 
 sip_hasher 424ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1221ms 
 twoxhash oneshot 45ms 
For 181 datalen and 10000000 iterations: 
 sip_hasher 435ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1227ms 
 twoxhash oneshot 45ms 
For 182 datalen and 10000000 iterations: 
 sip_hasher 437ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1229ms 
 twoxhash oneshot 45ms 
For 183 datalen and 10000000 iterations: 
 sip_hasher 456ms 
 xxhash3-rust oneshot 703ms 
 xxhash3-rust streaming 1232ms 
 twoxhash oneshot 45ms 
For 184 datalen and 10000000 iterations: 
 sip_hasher 421ms 
 xxhash3-rust oneshot 700ms 
 xxhash3-rust streaming 1234ms 
 twoxhash oneshot 45ms 
For 185 datalen and 10000000 iterations: 
 sip_hasher 444ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1241ms 
 twoxhash oneshot 45ms 
For 186 datalen and 10000000 iterations: 
 sip_hasher 445ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1243ms 
 twoxhash oneshot 45ms 
For 187 datalen and 10000000 iterations: 
 sip_hasher 449ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1247ms 
 twoxhash oneshot 45ms 
For 188 datalen and 10000000 iterations: 
 sip_hasher 441ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1244ms 
 twoxhash oneshot 45ms 
For 189 datalen and 10000000 iterations: 
 sip_hasher 454ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1252ms 
 twoxhash oneshot 45ms 
For 190 datalen and 10000000 iterations: 
 sip_hasher 455ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1254ms 
 twoxhash oneshot 45ms 
For 191 datalen and 10000000 iterations: 
 sip_hasher 461ms 
 xxhash3-rust oneshot 701ms 
 xxhash3-rust streaming 1259ms 
 twoxhash oneshot 45ms 
For 192 datalen and 10000000 iterations: 
 sip_hasher 439ms 
 xxhash3-rust oneshot 753ms 
 xxhash3-rust streaming 1231ms 
 twoxhash oneshot 45ms 
For 193 datalen and 10000000 iterations: 
 sip_hasher 462ms 
 xxhash3-rust oneshot 754ms 
 xxhash3-rust streaming 1261ms 
 twoxhash oneshot 45ms 
For 194 datalen and 10000000 iterations: 
 sip_hasher 464ms 
 xxhash3-rust oneshot 753ms 
 xxhash3-rust streaming 1262ms 
 twoxhash oneshot 45ms 
For 195 datalen and 10000000 iterations: 
 sip_hasher 468ms 
 xxhash3-rust oneshot 754ms 
 xxhash3-rust streaming 1261ms 
 twoxhash oneshot 45ms 
For 196 datalen and 10000000 iterations: 
 sip_hasher 457ms 
 xxhash3-rust oneshot 753ms 
 xxhash3-rust streaming 1264ms 
 twoxhash oneshot 45ms 
For 197 datalen and 10000000 iterations: 
 sip_hasher 471ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1271ms 
 twoxhash oneshot 45ms 
For 198 datalen and 10000000 iterations: 
 sip_hasher 469ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1271ms 
 twoxhash oneshot 45ms 
For 199 datalen and 10000000 iterations: 
 sip_hasher 472ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1274ms 
 twoxhash oneshot 45ms 
For 200 datalen and 10000000 iterations: 
 sip_hasher 452ms 
 xxhash3-rust oneshot 751ms 
 xxhash3-rust streaming 1270ms 
 twoxhash oneshot 45ms 
For 201 datalen and 10000000 iterations: 
 sip_hasher 480ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1283ms 
 twoxhash oneshot 45ms 
For 202 datalen and 10000000 iterations: 
 sip_hasher 477ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1286ms 
 twoxhash oneshot 45ms 
For 203 datalen and 10000000 iterations: 
 sip_hasher 481ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1291ms 
 twoxhash oneshot 45ms 
For 204 datalen and 10000000 iterations: 
 sip_hasher 472ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1287ms 
 twoxhash oneshot 45ms 
For 205 datalen and 10000000 iterations: 
 sip_hasher 484ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1288ms 
 twoxhash oneshot 45ms 
For 206 datalen and 10000000 iterations: 
 sip_hasher 487ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1291ms 
 twoxhash oneshot 45ms 
For 207 datalen and 10000000 iterations: 
 sip_hasher 491ms 
 xxhash3-rust oneshot 752ms 
 xxhash3-rust streaming 1295ms 
 twoxhash oneshot 45ms 
For 208 datalen and 10000000 iterations: 
 sip_hasher 469ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1285ms 
 twoxhash oneshot 45ms 
For 209 datalen and 10000000 iterations: 
 sip_hasher 495ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1302ms 
 twoxhash oneshot 45ms 
For 210 datalen and 10000000 iterations: 
 sip_hasher 495ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1309ms 
 twoxhash oneshot 45ms 
For 211 datalen and 10000000 iterations: 
 sip_hasher 500ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1316ms 
 twoxhash oneshot 45ms 
For 212 datalen and 10000000 iterations: 
 sip_hasher 488ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1313ms 
 twoxhash oneshot 45ms 
For 213 datalen and 10000000 iterations: 
 sip_hasher 502ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1319ms 
 twoxhash oneshot 45ms 
For 214 datalen and 10000000 iterations: 
 sip_hasher 500ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1321ms 
 twoxhash oneshot 45ms 
For 215 datalen and 10000000 iterations: 
 sip_hasher 508ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1324ms 
 twoxhash oneshot 45ms 
For 216 datalen and 10000000 iterations: 
 sip_hasher 485ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1325ms 
 twoxhash oneshot 45ms 
For 217 datalen and 10000000 iterations: 
 sip_hasher 510ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1328ms 
 twoxhash oneshot 45ms 
For 218 datalen and 10000000 iterations: 
 sip_hasher 525ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1330ms 
 twoxhash oneshot 45ms 
For 219 datalen and 10000000 iterations: 
 sip_hasher 512ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1334ms 
 twoxhash oneshot 45ms 
For 220 datalen and 10000000 iterations: 
 sip_hasher 505ms 
 xxhash3-rust oneshot 807ms 
 xxhash3-rust streaming 1325ms 
 twoxhash oneshot 45ms 
For 221 datalen and 10000000 iterations: 
 sip_hasher 517ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1333ms 
 twoxhash oneshot 45ms 
For 222 datalen and 10000000 iterations: 
 sip_hasher 516ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1330ms 
 twoxhash oneshot 45ms 
For 223 datalen and 10000000 iterations: 
 sip_hasher 522ms 
 xxhash3-rust oneshot 806ms 
 xxhash3-rust streaming 1334ms 
 twoxhash oneshot 45ms 
For 224 datalen and 10000000 iterations: 
 sip_hasher 503ms 
 xxhash3-rust oneshot 856ms 
 xxhash3-rust streaming 1319ms 
 twoxhash oneshot 45ms 
For 225 datalen and 10000000 iterations: 
 sip_hasher 524ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1341ms 
 twoxhash oneshot 45ms 
For 226 datalen and 10000000 iterations: 
 sip_hasher 526ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1343ms 
 twoxhash oneshot 45ms 
For 227 datalen and 10000000 iterations: 
 sip_hasher 529ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1352ms 
 twoxhash oneshot 45ms 
For 228 datalen and 10000000 iterations: 
 sip_hasher 521ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1349ms 
 twoxhash oneshot 45ms 
For 229 datalen and 10000000 iterations: 
 sip_hasher 536ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1362ms 
 twoxhash oneshot 45ms 
For 230 datalen and 10000000 iterations: 
 sip_hasher 534ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1366ms 
 twoxhash oneshot 45ms 
For 231 datalen and 10000000 iterations: 
 sip_hasher 539ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1366ms 
 twoxhash oneshot 45ms 
For 232 datalen and 10000000 iterations: 
 sip_hasher 517ms 
 xxhash3-rust oneshot 856ms 
 xxhash3-rust streaming 1367ms 
 twoxhash oneshot 45ms 
For 233 datalen and 10000000 iterations: 
 sip_hasher 542ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1374ms 
 twoxhash oneshot 45ms 
For 234 datalen and 10000000 iterations: 
 sip_hasher 541ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1384ms 
 twoxhash oneshot 45ms 
For 235 datalen and 10000000 iterations: 
 sip_hasher 551ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1384ms 
 twoxhash oneshot 45ms 
For 236 datalen and 10000000 iterations: 
 sip_hasher 537ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1386ms 
 twoxhash oneshot 45ms 
For 237 datalen and 10000000 iterations: 
 sip_hasher 550ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1387ms 
 twoxhash oneshot 45ms 
For 238 datalen and 10000000 iterations: 
 sip_hasher 550ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1389ms 
 twoxhash oneshot 45ms 
For 239 datalen and 10000000 iterations: 
 sip_hasher 556ms 
 xxhash3-rust oneshot 857ms 
 xxhash3-rust streaming 1389ms 
 twoxhash oneshot 45ms 
For 240 datalen and 10000000 iterations: 
 sip_hasher 534ms 
 xxhash3-rust oneshot 907ms 
 xxhash3-rust streaming 1378ms 
 twoxhash oneshot 45ms 
For 241 datalen and 10000000 iterations: 
 sip_hasher 557ms 
 xxhash3-rust oneshot 1464ms 
 xxhash3-rust streaming 1380ms 
 twoxhash oneshot 572ms 
For 242 datalen and 10000000 iterations: 
 sip_hasher 561ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1394ms 
 twoxhash oneshot 572ms 
For 243 datalen and 10000000 iterations: 
 sip_hasher 561ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1400ms 
 twoxhash oneshot 572ms 
For 244 datalen and 10000000 iterations: 
 sip_hasher 553ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1400ms 
 twoxhash oneshot 572ms 
For 245 datalen and 10000000 iterations: 
 sip_hasher 564ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1408ms 
 twoxhash oneshot 572ms 
For 246 datalen and 10000000 iterations: 
 sip_hasher 565ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1406ms 
 twoxhash oneshot 573ms 
For 247 datalen and 10000000 iterations: 
 sip_hasher 570ms 
 xxhash3-rust oneshot 1464ms 
 xxhash3-rust streaming 1406ms 
 twoxhash oneshot 572ms 
For 248 datalen and 10000000 iterations: 
 sip_hasher 550ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1398ms 
 twoxhash oneshot 572ms 
For 249 datalen and 10000000 iterations: 
 sip_hasher 575ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1409ms 
 twoxhash oneshot 572ms 
For 250 datalen and 10000000 iterations: 
 sip_hasher 576ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1411ms 
 twoxhash oneshot 572ms 
For 251 datalen and 10000000 iterations: 
 sip_hasher 577ms 
 xxhash3-rust oneshot 1464ms 
 xxhash3-rust streaming 1416ms 
 twoxhash oneshot 572ms 
For 252 datalen and 10000000 iterations: 
 sip_hasher 569ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1409ms 
 twoxhash oneshot 572ms 
For 253 datalen and 10000000 iterations: 
 sip_hasher 581ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1418ms 
 twoxhash oneshot 572ms 
For 254 datalen and 10000000 iterations: 
 sip_hasher 584ms 
 xxhash3-rust oneshot 1463ms 
 xxhash3-rust streaming 1418ms 
 twoxhash oneshot 572ms 

[shepmaster]

Tweaking our own performance tests to focus on 240 / 241 bytes shows a similar jump:

	240	241	Percentage
impl-c	12.422 ns	12.622 ns	101.61004669135405
impl-c-scalar	12.389 ns	17.970 ns	145.04802647509887
impl-c-neon	12.240 ns	12.679 ns	103.58660130718955
impl-rust	12.539 ns	15.998 ns	127.5859318924954

I don't currently have any strong hunches as to why this could be the case. I also probably won't have much time to try and track this down.

If I were forced to make a guess, one thing I saw some point when profiling was that sometimes the stack size of the function was larger than it needed to be because SIMD registers were allocated unconditionally, which caused a hit when saving / restoring the stack space.