Russell Coker posted on Thu, 08 May 2014 19:50:23 +1000 as excerpted: > I've got a server/workstation (KDE desktop and file server) running > kernel 3.14.1 from the Debian package 3.14-trunk-amd64. > > It was running well until I decided to do a full balance of the BTRFS > RAID-1 array of 3TB SATA disks (which hadn't been balanced before due to > previous kernels performing badly with scrub or balance). I canceled > the balance after about 5 days when it had been claiming to be about 65% > done for a day while doing a lot of disk IO. > > After canceling the balance the performance of the array has been poor.
Not much help, but two comments: 1) I've seen other reports of performance problems after balance. Nobody seems to have a good reason as to why a balance might do that. 2) I've NOT seen anything like that, here. However, my btrfs are all rather small, under 50 GiB. (FWIW, it /still/ seems weird to me calling a GB "small". It doesn't seem all /that/ long ago that I bought my first 1 GB drive, and it sure wasn't small nor inexpensive then! I guess I've officially joined the computer old-timers!) -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
