[Perf] Reserve the exact capacity in ToBits for BigIntegers #2514
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Signed-off-by: ljedrz <ljedrz@users.noreply.github.com>
joske
approved these changes
Jul 9, 2024
vicsn
approved these changes
Jul 9, 2024
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While heap-profiling the loading of the Canary ledger, I was surprised by the number of temporary allocations pointing to the
ToBitsimpl forBigInteger256; it appears that theExtendimpl that's used there is not able to take advantage of theExactSizeIteratorimpl forBitIteratorLE, and we need to be more explicit in order to avoid them.The results at height 330598 are as follows: