Commit | Line | Data |
---|---|---|
f80e9538 BB |
1 | [global] |
2 | bs=1m | |
3 | ioengine=pmemblk | |
4 | norandommap | |
cd041bf4 | 5 | time_based |
f80e9538 BB |
6 | runtime=30 |
7 | group_reporting | |
8 | disable_lat=1 | |
9 | disable_slat=1 | |
10 | disable_clat=1 | |
11 | clat_percentiles=0 | |
12 | cpus_allowed_policy=split | |
13 | ||
14 | # For the pmemblk engine: | |
15 | # | |
16 | # IOs always complete immediately | |
17 | # IOs are always direct | |
18 | # Must use threads | |
19 | # | |
20 | iodepth=1 | |
21 | direct=1 | |
2d21a787 | 22 | thread |
f80e9538 BB |
23 | numjobs=16 |
24 | # | |
25 | # Unlink can be used to remove the files when done, but if you are | |
26 | # using serial runs with stonewall, and you want the files to be created | |
27 | # only once and unlinked only at the very end, then put the unlink=1 | |
28 | # in the last group. This is the method demonstrated here. | |
29 | # | |
30 | # Note that if you have a read-only group and if the files will be | |
31 | # newly created, then all of the data will read back as zero and the | |
32 | # read will be optimized, yielding performance that is different from | |
33 | # that of reading non-zero blocks (or unoptimized zero blocks). | |
34 | # | |
35 | unlink=0 | |
36 | # | |
37 | # The pmemblk engine does IO to files in a DAX-mounted filesystem. | |
38 | # The filesystem should be created on an NVDIMM (e.g /dev/pmem0) | |
39 | # and then mounted with the '-o dax' option. Note that the engine | |
40 | # accesses the underlying NVDIMM directly, bypassing the kernel block | |
41 | # layer, so the usual filesystem/disk performance monitoring tools such | |
42 | # as iostat will not provide useful data. | |
43 | # | |
44 | # Here we specify a test file on each of two NVDIMMs. The first | |
45 | # number after the file name is the block size in bytes (4096 bytes | |
46 | # in this example). The second number is the size of the file to | |
47 | # create in MiB (1 GiB in this example); note that the actual usable | |
48 | # space available to fio will be less than this as libpmemblk requires | |
49 | # some space for metadata. | |
50 | # | |
51 | # Currently, the minimum block size is 512 bytes and the minimum file | |
52 | # size is about 17 MiB (these are libpmemblk requirements). | |
53 | # | |
54 | # While both files in this example have the same block size and file | |
55 | # size, this is not required. | |
56 | # | |
57 | filename=/pmem0/fio-test,4096,1024 | |
58 | filename=/pmem1/fio-test,4096,1024 | |
59 | ||
60 | [pmemblk-write] | |
61 | rw=randwrite | |
62 | stonewall | |
63 | ||
64 | [pmemblk-read] | |
65 | rw=randread | |
66 | stonewall | |
67 | # | |
68 | # We're done, so unlink the file: | |
69 | # | |
70 | unlink=1 | |
71 |