dan-and / zfs-compression-test

Standardised ZFS compression test

zfs-compression-test

Crude Standardised ZFS compression test, with repeatable results in mind

Important notes

• Make sure you do not have zfs installed already via other means
• This assumes a clean install with sudo, unzip, wget and git installed
• The enwik9 dataset gets downloaded just once, don;t worry about the time it takes
• This script makes sure the build/test environment is as prestine as possible before and after running
• This script uses a ramdisk as source and (pool) destination for writes tests to asure clean and unbottlenecked results

How setup

1. Install all dependancies as described here: https://github.com/zfsonlinux/zfs/wiki/Building-ZFS#installing-dependencies
2. Run: git clone https://github.com/Ornias1993/zfs-compression-test
3. Run: cd zfs-compression-test
4. Clone the branch/repo containing ZoL (ex. git clone https://github.com/zfsonlinux/zfs

By now you'll have all dependencies and you'll have a clean git clone in zfs-compression-test/zfs

How to use

1. Make sure you cd into the zfs-compression-test directory
2. run: sudo ./comp-test.sh with one of the options

options

Compression Tests

• -b A basic test of only the following algorithms: off lz4 zle lzjb gzip zstd
• -f A full test of all compression algorithms available for ZFS
• -c A Custom test with only the argument algorithm
• -t Select a different compression test file. Options: enwik9 and mpeg4
• -p Enter a different prefix for the test results

Other

• -i Builds and installs the ZFS testing environment (included for compression tests)
• -r Completely removes the ZFS testing environment (included for compression tests)
• -h Displays a help page, which includes a reference to the different commands

When finished you'll have a .txt file in the zfs-compression-test directory, containing the test results

To Do

• Add custom ram setting
• Automatic run of tests and zloop
• Combinations of Tests, Zloop and Compression
• Input sanitsaion