On 24 April 2010 20:08, Phill Coxon <phi...@xtra.co.nz> wrote: > > Ahhhh. > > Not on this drive - it's a WD3200AAKS-0 Cavier Blue 320G. But I do have > a "Green" drive for backups so I'll be looking at that more closely. > > Thanks!
By the way, Some of the slowdown could be due to a "workaround" in Ubuntu for ext4. There is an issue with renaming a file over an existing filename that, if the system crashes before the filesystem writes out changes to disk, files are left with a inconstant state causing major problems. The workaround they added a bunch of fsync calls that forces things like dpkg/update-manager/etc to sync at several stages. This causes a 2-4x increase in disk writes and tons of thrashing. I noticed dpkg taking a lot longer and had to dig around to find the bug. There is a huge debate over who needs to fix the bug, many blaming ext4 devs. I don't expect it to get fixed any time soon. Cheers, sV
