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JonMagon / KDiskMark

A simple open-source disk benchmark tool for Linux distros
GNU General Public License v3.0
1.11k stars 44 forks source link

Feat: set NoCow for Btrfs/Bcachefs #141

Open MeowKatee opened 9 months ago

MeowKatee commented 9 months ago

Description:

KDiskMark should set NoCow (via chattr +C on the temp directory to place IO files for example) for bcachefs/btrfs for the test files

As far as I know, with Copy-on-Write enabled, the write performance will be slow down about 2x

JonMagon commented 2 months ago

Hello, I apologize for the very delayed response. I've checked, you're right - the random write speed is particularly affected. I'll need to think about the best way to implement this. Thank you for pointing it out.