Set to land in v6.4: 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.