Arena64 provides data structures that pre-allocate storage for 64 elements at a time with insertions yielding slots that uniquely own access to the respective cell. Comparable to Box, slots can be converted into/from raw pointers by storing the index in the low-bits, making them well-suited for use cases requiring thin-pointers.
Box |
Bump64 |
Arena64 |
|
|---|---|---|---|
64 |
967.87 ns (✅ 1.00x) |
234.03 ns (🚀 4.14x faster) |
333.00 ns (🚀 2.91x faster) |
128 |
1.92 us (✅ 1.00x) |
444.37 ns (🚀 4.32x faster) |
646.06 ns (🚀 2.97x faster) |
256 |
3.81 us (✅ 1.00x) |
848.89 ns (🚀 4.49x faster) |
1.30 us (🚀 2.94x faster) |
512 |
7.69 us (✅ 1.00x) |
1.64 us (🚀 4.69x faster) |
2.57 us (🚀 2.99x faster) |
1024 |
15.23 us (✅ 1.00x) |
3.24 us (🚀 4.70x faster) |
5.06 us (🚀 3.01x faster) |
2048 |
30.43 us (✅ 1.00x) |
6.45 us (🚀 4.72x faster) |
9.93 us (🚀 3.06x faster) |