Use ISB as a spin-delay instruction on ARM64. This seems beneficial on high-core-count machines, and not harmful on lesser hardware. However, older ARM32 gear doesn't have this instruction, so restrict the patch to ARM64.
Geoffrey Blake Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/a82a5eee314df52f3183cedc0ecbcac7369243b1 Modified Files -------------- src/include/storage/s_lock.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
