On Sep 2, 2014, at 12:40 AM, Duncan <[email protected]> wrote: > > Mkfs.btrfs used to default to 4 KiB node/leaf sizes; now days it defaults > to 16 KiB as that's far better for most usage. I wonder if USB sticks > are an exception…
USB sticks > 1 GB get 16KB nodesize also. At <= 1 GB, mixed-bg is default as is 4KB nodesize. Probably because queue/rotational is 1 for USB sticks, they mount without ssd or ssd_spread which may be unfortunate (I haven't benchmarked it but I suspect ssd_spread would work well for USB sticks). It was suggested a while ago that maybe mixed-bg should apply to larger volumes, maybe up to 8GB or 16GB? Chris Murphy -- 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
