On Mar 4, 2014, at 8:55 AM, Michael Russo <mike@xxxxxxxxxxxxxx> wrote: > Hugo Mills <hugo <at> carfax.org.uk> writes: > >> This is just a guess, but you might have some large (>1GB) > extents >> in there that span across multiple chunks. I'd suggest running a > btrfs >> defrag on any particularly big files and see if that helps the > situation. >> > > Doing this is definitely helping, but I have to run the defrag multiple > times with different values for "-t". If I don't include -t the defrag > runs really quickly but doesn't seem to do anything. Based on my reading of the man page, I think it's expected. You either need -s -l or -t. > Now I've gotten > it down to only 2 5GB segments that won't move. Another way would be to just copy it (not reflink) and delete the original. Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
