The Great Linux Filesystem War
All of the major filesystems are undergone some major changed since January 2024 and I wanted to check to see how these changes have impacted performance.
In this video I am comparing five linux file systems: bcacheFS, btrfs, Ext4, Stratis and XFS. I was going to include ZFS, but the results were so fast that it clearly indicated it was using memory. Tried everything I could think of including systemd, ulimit, intent logs on SSD, and even trying to use a file 2X the size of physical memory, none of which worked, and in some cases ZFS improved its performance numbers.
Chapters
00:00 – Start
01:52 – bcachefs and btrfs
02:28 – ext4
02:55 – Stratis
03:02 – XFS
03:28 – Filesystems I skipped
03:51 – Test hardware and software
05:07 – System Configuration
05:51 – Test Methodology
06:37 – btrfs raid 5 and 6
06:57 – Test Results – Initial Write
09:41 – Re-Read Test
10:20 – FRead
11:25 – FWrite
12:11 – Mixed Workloads
12:44 – PRead
14:37 – Random Reads
15:33 – Random Write
16:16 – Re-Write
16:38 – Reverse Reads
17:13 – Stride Reads
17:45 – Which is Fastest?
18:51 – Ext5?
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