Davide Grilli 7d4096749a perf(sha256): add ARMv8 2-way interleaved transform and scan_4way_direct ...

Process two independent SHA256 chains simultaneously to hide the 2-cycle
latency of vsha256hq_u32 on Cortex-A76, approaching full throughput.
Also reduces memcpy from 512 to ~192 bytes per 4-nonce group by reusing
block buffers, and adds scan_4way_direct to bypass pthread_once (LDAR
barrier) on every inner-loop call.

2026-03-30 10:42:17 +02:00

6.8 KiB

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