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38384f2c60
Reduce allocations. Don't create intermediary arrays which we then consume right after. Manually fuse the arrays and decode straight into the sum instead. Furthermore, don't invoke a Reader, but carve out the locations via a loop, directly. These two changes taken together speeds up oshash computations by a factor of 10 according to the benchmark tests. The main reason for this change is a much lowered memory allocation rate which in turn improves GC pressure. While here, add a benchmark for oshash computations and use it for testing the performance.