Btrfs Merged Into Mainline Linux Kernel
Phoronix: Btrfs Merged Into Mainline Linux Kernel
Btrfs, the next-generation Linux file-system conceived by Oracle and designed to compete with some of the features found in Sun's ZFS file-system, has just been merged for the Linux 2.6.29 kernel. Last week we shared that Btrfs was getting ready for the mainline kernel and since then Chris Mason and other kernel hackers have committed several commits to the btrfs-unstable tree. There have been 21 commits to this new open-source file-system in the past four days. This morning Linus Torvalds finally pulled Btrfs into the mainline kernel...
For me, 2.6.29 will be the feature wize coolest kernel to date.
2.6.30 will likely be the coolest kernel bug fix wize
So, will it be functional or is it purely for testing still?
It would be interesting to see SSD benchmarks with the following:
btrfs (SSD mode)
Does anyone know whether the SSD mode is already implemented and whether it will detect your SSD automatically and enable the optimized mode?
I imagine this would be done using a script to change the mount option in fstab
Originally Posted by d2kx
That's something I've been wondering myself.
Originally Posted by joffe
"Anyway, give it a good testing. And please do keep in mind that while new
Originally Posted by JeanPaul145
filesystems can be intruiging and exciting, "new" also means "not widely
tested". I'm sure the btrfs people will appreciate people testing, but I
would suggest that you go very very carefully (squashfs is read-only, so
it's presumably less likely to eat your data, but who knows - the
perversity of the universe is endless)." - Linus LKML
Sweet!!! I am after doing a new server build (present only has a single harddrive) and I /really/ want to try this out
having two HDD in mirrored RAID with a BTRFS should be sweet!!!
Btrfs phenomenally BAD according to benchmarks
The benchmarks linked in the Btrfs home page show that Btrfs is phenominally BAD compared to pretty much any other Linux filesystem. For example, look at the Single Disk Mail Server Simulation with one thread: Btrfs is eleven times (1100%) less efficient than EXT4. The second worse filesystem after Btrfs is JFS, and even it is 9X more efficient than Btrfs.
Upgrading to Btrfs will mean a sure slowdown for the vast majority of Linux users unless Oracle devs have a miracle up their sleeves.
ZFS, on the other hand, is both faster than EXT4 and more featureful. Can't beat that.
You really can't compare a filesystem that still has a lot of debugging code in it. Besides those results are fairly old right now and the last couple months have been about optimization of it in the recent commits.
Originally Posted by stan