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Based on performance analysis showing 16 workers is the optimal balance: - Sufficient parallelism for I/O-bound proof operations - Avoids excessive memory pressure (64MB vs 128MB for stacks) - Reduces MDBX reader table contention - Testing shows 16 workers achieve 145% baseline throughput - Beyond 32 workers shows degradation due to I/O scheduler thrashing The 2x CPU oversubscription remains for I/O-bound workloads, with a minimum floor of 16 instead of 32 workers.