I recently tried out BTRFS on my new 1.5 terrabyte hard drive, using ext3 as /boot. I also have 3 gigabytes of swap. Anyway, I've found that the new Kubuntu 10.10 installation on this BTRFS hard drive has much worse performance than my old ext4 hard drive. Also, it doesn't take much with the new installation for the CPU to be so overwhelmed that my entire computer becomes unresponsive for a bit. One theory that I have is that BTRFS uses a lot more RAM than ext4 because I only have 1 gigabyte of RAM in my computer. Does anyone know anything about this?
No announcement yet.
BTRFS much slower than ext4?