Re:86 GB/s bitpacking with ARM SIMD (single thread)
by ashtonsix on Monday October 06, 2025 @05:53AM
(#45489606)
Oh nice! Axion C4A and Graviton4 use the same core (Neoverse V2), so the performance difference is due to factors like clock speed and power management.
I used a geometric mean to calculate the top-line "86 GB/s" for NEON pack/unpack; so that's 91 GB/s for the C4A repro. Probably going to leave the title unmodified.
I used a geometric mean to calculate the top-line "86 GB/s" for NEON pack/unpack; so that's 91 GB/s for the C4A repro. Probably going to leave the title unmodified.