Hi Wenhui, Baohong, > Please consider adding benchmark results from at least one non-Intel > platform.
I benchmarked your v1 on AWS Graviton (Arm Neoverse N1/V1/V2/V3) on top of postgres master f7cc6fd760: ran pgbench with 3 different workloads over various machine sizes and client counts. I measured up to 59% higher peak throughput on 192-core V3, up to 14% on 192-core V2, and no change or regressions on small systems. Result details can be found in these plots: https://github.com/harisokanovic/harismisc/tree/master/postgres/pgsqlscaling/adaptiveSpinReads-bench-2026-09-18/ For context, I have also been trying to improve LWLockWaitListLock() using futex-mutex, but so far this approach doesn't benchmark well on x86_64 systems, and was conditioned on aarch64-only. The futex-mutex variant: https://www.postgresql.org/message-id/DM6PR18MB29081469262A7BBCE85220B3A8112%40DM6PR18MB2908.namprd18.prod.outlook.com Regards, Haris Okanovic AWS Graviton
