| [global] |
| bs=1m |
| ioengine=pmemblk |
| norandommap |
| time_based=1 |
| runtime=30 |
| group_reporting |
| disable_lat=1 |
| disable_slat=1 |
| disable_clat=1 |
| clat_percentiles=0 |
| cpus_allowed_policy=split |
| |
| # For the pmemblk engine: |
| # |
| # IOs always complete immediately |
| # IOs are always direct |
| # Must use threads |
| # |
| iodepth=1 |
| direct=1 |
| thread=1 |
| numjobs=16 |
| # |
| # Unlink can be used to remove the files when done, but if you are |
| # using serial runs with stonewall, and you want the files to be created |
| # only once and unlinked only at the very end, then put the unlink=1 |
| # in the last group. This is the method demonstrated here. |
| # |
| # Note that if you have a read-only group and if the files will be |
| # newly created, then all of the data will read back as zero and the |
| # read will be optimized, yielding performance that is different from |
| # that of reading non-zero blocks (or unoptimized zero blocks). |
| # |
| unlink=0 |
| # |
| # 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. |
| # |
| # Here we specify a test file on each of two NVDIMMs. The first |
| # number after the file name is the block size in bytes (4096 bytes |
| # in this example). The second number is the size of the file to |
| # create in MiB (1 GiB in this example); note that the actual usable |
| # space available to fio will be less than this as libpmemblk requires |
| # some space for metadata. |
| # |
| # Currently, the minimum block size is 512 bytes and the minimum file |
| # size is about 17 MiB (these are libpmemblk requirements). |
| # |
| # While both files in this example have the same block size and file |
| # size, this is not required. |
| # |
| filename=/pmem0/fio-test,4096,1024 |
| filename=/pmem1/fio-test,4096,1024 |
| |
| [pmemblk-write] |
| rw=randwrite |
| stonewall |
| |
| [pmemblk-read] |
| rw=randread |
| stonewall |
| # |
| # We're done, so unlink the file: |
| # |
| unlink=1 |
| |
