Landed in v6.2: https://lore.kernel.org/lkml/20221105005902.407297-3-longman@redhat.com/T/ https://lore.kernel.org/lkml/20221105005902.407297-3-longman... Set

Landed in v6.2: https://lore.kernel.org/lkml/20221105005902.407297-3-longman@redhat.com/T/ https://lore.kernel.org/lkml/20221105005902.407297-3-longman... Set to land in v6.4: https://lore.kernel.org/linux-mm/20230330191801.1967435-1-yosryahmed@google.com/T/ https://lore.kernel.org/linux-mm/20230330191801.1967435-1-yo... To see if you are affected run ‘sudo perf top’ and see if ‘blkcg_rstat_flush()’ shows up. blkcg_rstat_flush is quite slow on some kernels and it disables IRQs on the cpu which blocks nic queues on the same CPU.