[global] bs=4k size=8g ioengine=libpmem norandommap time_based=1 group_reporting invalidate=1 disable_lat=1 disable_slat=1 disable_clat=1 clat_percentiles=0 iodepth=1 iodepth_batch=1 thread=1 numjobs=1 # # In case of 'scramble_buffers=1', the source buffer # is rewritten with a random value every write operations. # # But when 'scramble_buffers=0' is set, the source buffer isn't # rewritten. So it will be likely that the source buffer is in CPU # cache and it seems to be high performance. # scramble_buffers=0 # # direct=0: # Using pmem_memcpy_nodrain() for write operation # # direct=1: # Using pmem_memcpy_persist() for write operation # direct=0 # # Setting for fio process's CPU Node and Memory Node # numa_cpu_nodes=0 numa_mem_policy=bind:0 # # split means that each job will get a unique CPU from the CPU set # cpus_allowed_policy=split # # The pmemblk engine does IO to files in a DAX-mounted filesystem. # The filesystem should be created on an NVDIMM (e.g /dev/pmem0) # and then mounted with the '-o dax' option. Note that the engine # accesses the underlying NVDIMM directly, bypassing the kernel block # layer, so the usual filesystem/disk performance monitoring tools such # as iostat will not provide useful data. # directory=/mnt/pmem0 [libpmem-seqwrite] rw=write stonewall #[libpmem-seqread] #rw=read #stonewall #[libpmem-randwrite] #rw=randwrite #stonewall #[libpmem-randread] #rw=randread #stonewall