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sharksforarms / deku

Declarative binary reading and writing: bit-level, symmetric, serialization/deserialization
Apache License 2.0
1.05k stars 54 forks source link

Optimize macros #320

Closed dullbananas closed 1 year ago

dullbananas commented 1 year ago

Compile duration of a crate that uses deku (median from 5 samples):

Before: 19.1 s After: 4.0 s

Same crate, with derive replaced with deku_derive:

Before: 4.0 s After: 3.7 s

dullbananas commented 1 year ago

https://nnethercote.github.io/perf-book/heap-allocations.html

https://nnethercote.github.io/perf-book/iterators.html