examples/libpmem.fio

   1 [global]
   2 bs=4k
   3 size=8g
   4 ioengine=libpmem
   5 norandommap
   6 time_based
   7 group_reporting
   8 invalidate=1
   9 disable_lat=1
  10 disable_slat=1
  11 disable_clat=1
  12 clat_percentiles=0
  13
  14 iodepth=1
  15 iodepth_batch=1
  16 thread
  17 numjobs=1
  18 runtime=300
  19
  20 #
  21 # In case of 'scramble_buffers=1', the source buffer
  22 # is rewritten with a random value every write operations.
  23 #
  24 # But when 'scramble_buffers=0' is set, the source buffer isn't
  25 # rewritten. So it will be likely that the source buffer is in CPU
  26 # cache and it seems to be high performance.
  27 #
  28 scramble_buffers=0
  29
  30 #
  31 # depends on direct option, flags are set for pmem_memcpy() call:
  32 # direct=1 - PMEM_F_MEM_NONTEMPORAL,
  33 # direct=0 - PMEM_F_MEM_TEMPORAL.
  34 #
  35 direct=1
  36
  37 #
  38 # sync=1 means that pmem_drain() is executed for each write operation.
  39 #
  40 sync=1
  41
  42
  43 #
  44 # Setting for fio process's CPU Node and Memory Node
  45 #
  46 numa_cpu_nodes=0
  47 numa_mem_policy=bind:0
  48
  49 #
  50 # split means that each job will get a unique CPU from the CPU set
  51 #
  52 cpus_allowed_policy=split
  53
  54 #
  55 # The libpmem engine does IO to files in a DAX-mounted filesystem.
  56 # The filesystem should be created on an NVDIMM (e.g /dev/pmem0)
  57 # and then mounted with the '-o dax' option.  Note that the engine
  58 # accesses the underlying NVDIMM directly, bypassing the kernel block
  59 # layer, so the usual filesystem/disk performance monitoring tools such
  60 # as iostat will not provide useful data.
  61 #
  62 directory=/mnt/pmem0
  63
  64 [libpmem-seqwrite]
  65 rw=write
  66 stonewall
  67
  68 #[libpmem-seqread]
  69 #rw=read
  70 #stonewall
  71
  72 #[libpmem-randwrite]
  73 #rw=randwrite
  74 #stonewall
  75
  76 #[libpmem-randread]
  77 #rw=randread
  78 #stonewall