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not-fl3 / nanoserde

Serialisation library with zero dependencies
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add with_capacity initialization during deser for the collections #76

Closed knickish closed 1 year ago

knickish commented 1 year ago

This gives large performance improvements for collection deserialization speed. These results are from the rust_serialization_benchmark crate, with a run against v0.1.33 first and this branch afterwards. The mk48 test in particular was ~30% faster on deserialization.

log/nanoserde/serialize time:   [169.86 µs 170.39 µs 171.12 µs]
                        change: [-4.1572% -3.8132% -3.4412%] (p = 0.00 < 0.05)
                        Performance has improved.
log/nanoserde/deserialize
                        time:   [1.8331 ms 1.8341 ms 1.8354 ms]
                        change: [-8.1580% -8.0591% -7.9574%] (p = 0.00 < 0.05)
                        Performance has improved.

mesh/nanoserde/serialize
                        time:   [1.1217 ms 1.1354 ms 1.1511 ms]
                        change: [-18.783% -17.201% -15.571%] (p = 0.00 < 0.05)
                        Performance has improved.
mesh/nanoserde/deserialize
                        time:   [643.65 µs 644.72 µs 646.05 µs]
                        change: [-17.091% -16.834% -16.596%] (p = 0.00 < 0.05)
                        Performance has improved.

minecraft_savedata/nanoserde/serialize
                        time:   [218.12 µs 218.29 µs 218.51 µs]
                        change: [-0.8400% -0.6348% -0.4279%] (p = 0.00 < 0.05)
                        Change within noise threshold.
minecraft_savedata/nanoserde/deserialize
                        time:   [1.6389 ms 1.6468 ms 1.6551 ms]
                        change: [-16.742% -16.483% -16.199%] (p = 0.00 < 0.05)
                        Performance has improved.

mk48/nanoserde/serialize
                        time:   [881.43 µs 885.42 µs 889.92 µs]
                        change: [-3.3084% -2.9239% -2.4109%] (p = 0.00 < 0.05)
                        Performance has improved.
mk48/nanoserde/deserialize
                        time:   [2.5251 ms 2.5262 ms 2.5272 ms]
                        change: [-32.383% -32.335% -32.286%] (p = 0.00 < 0.05)
                        Performance has improved.