>> [ ... ] these extents are all over the place, they're not >> contiguous at all. 4K here, 4K there, 4K over there, back to >> 4K here next to this one, 4K over there...12K over there, 500K >> unwritten, 4K over there. This seems not so consequential on >> SSD, [ ... ] > Indeed there were recent reports that the 'ssd' mount option > causes that, IIRC by Hans van Kranenburg [ ... ] The report included news that "sometimes" the 'ssd' option is automatically switched on at mount even on hard disks. I had promised to put a summary of the issue on the Btrfs wiki, but I regret that I haven't yet done that. -- 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
