On Wed, Jun 28, 2017 at 03:44:40PM +0300, Max Gurtovoy wrote: > This patch performs sequential mapping between CPUs and queues. > In case the system has more CPUs than HWQs then there are still > CPUs to map to HWQs. In hyperthreaded system, map the unmapped CPUs > and their siblings to the same HWQ. > This actually fixes a bug that found unmapped HWQs in a system with > 2 sockets, 18 cores per socket, 2 threads per core (total 72 CPUs) > running NVMEoF (opens upto maximum of 64 HWQs). > > Performance results running fio (72 jobs, 128 iodepth) > using null_blk (w/w.o patch): Can you also tests with Sagi's series to use the proper IRQ level mapping?