A python script to generate CrystalDiskMark-style test result with fio. Should work across multi platforms as long as you have fio and python (need version 3.3 and above) in case you want to compare the results with CrystalDiskMark.
This is still WIP. I am a novice python coder and not familiar with fio, so the test result is expected to be imprecise. Correction and advices are welcome.
- python
- fio
- Try to provide some options of CrystalDiskMark, e.g., number of test runs, test file size, mixed r/w tests, zero buffers, etc
- Show IOPS and latency results for random read/write tests. This actually combines the "default", "peak performance" and "real world performance" tests in CrystalDiskMark 7.0.0
- Easy to add/customize new tests in command-line arguments
- Parse
fioresult in json format to achieve more stability
usage: fio-cdm [target] [-h] [-0] [-a job] [-E] [-f jobfile] [-n number] [-s size] [-x [mix]]
positional arguments:
target The path of the directory to test. Default to current directory.
optional arguments:
-h, --help show this help message and exit
-0 Initialize buffers with zeros. Default to use random buffers.
-a job Manually add multiple jobs. Format is "seq|rnd,<queue depth>,<thread number>".
This overrides the preset jobs. This option can be used more than once.
-E Disable extra information (iops, latency) for random IO tests. Default is enabled.
-f jobfile Save jobfile and quit without running fio. Use "-" to print to stdout.
-n number Number of tests, default is 5.
-s size The size of file I/O. It is directly passed to fio. Default is 1G.
-x [mix] Add mixed rw test. Default is disabled. <mix> is read percentage. Default is 70.
Recommend to put the <target> argument as the first one since some of the optional arguments will consume it. See this bug of Python.
The default tests are same as CrystalDiskMark 7.0.0
tests: 5, size: 1G, target: . 173.3GiB/405.1GiB
|Name | Read(MB/s)|Write(MB/s)| Mix(MB/s)|
|------------|-----------|-----------|-----------|
|SEQ1M Q8 T1 | 2997.60| 2056.19| 1438.19|
|SEQ1M Q1 T1 | 1986.94| 1461.67| 941.04|
|RND4K Q32T16| 1816.04| 456.98| 434.18|
|... IOPS | 443350.17| 111546.75| 105987.62|
|... latency | 1153.89| 4587.90| 2800.43|
|RND4K Q1 T1 | 54.20| 164.86| 34.43|
|... IOPS | 13232.15| 40248.87| 8405.20|
|... latency | 74.76| 23.04| 67.78|
Set test file size to 512MB, 5 test runs with read, write and mix tests:
fio-cdm -s 512m -n 5 -x
Manually add jobs to replace the default ones:
fio-cdm -a seq,1,1 -a seq,32,1 -a rnd,16,8
Show the equivalent fio command directly (without running the test):
fio-cdm -f - | fio --showcmd -
Shell version: https://github.com/buty4649/fio-cdm