Change Details

Creation of a zone is expensive and there is no need to have one for every vnet. Moreover, this wastes memory as these separate zones cannot use the same per-cpu caches. Finally, this is a step towards replacing the custom zone with pcpu-16. Two counter_u64_zero calls induce back-to-back IPIs to zero everything out. Instead, pass the M_ZERO flag to let uma just iterate all buffers. The counter(9) API abstraction is already violated by not using counter_u64_alloc. Sponsored by: Rubicon Communications, LLC ("Netgate")

Creation of a zone is expensive and there is no need to have one for every vnet. Moreover, this wastes memory as these separate zones cannot use the same per-cpu caches. Finally, this is a step towards replacing the custom zone with pcpu-16. Two counter_u64_zero calls induce back-to-back IPIs to zero everything out. Instead, pass the M_ZERO flag to let uma just iterate all buffers. The counter(9) API abstraction is already violated by not using counter_u64_alloc. Sponsored by: Rubicon Communications, LLC ("Netgate")

Creation of a zone is expensive and there is no need to have one for every vnet. Moreover, this wastes memory as these separate zones cannot use the same per-cpu caches. Finally, this is a step towards replacing the custom zone with pcpu-16. Two counter_u64_zero calls induce back-to-back IPIs to zero everything out. Instead, pass the M_ZERO flag to let uma just iterate all buffers. The counter(9) API abstraction is already violated by not using counter_u64_alloc. Sponsored by: Rubicon Communications, LLC ("Netgate")