On Thu, Nov 11, 2010 at 11:41 PM, Josef Bacik <[email protected]> wrote: > On Fri, Nov 12, 2010 at 05:47:14PM +1100, Chris Samuel wrote: >> On 11/11/10 23:52, Josef Bacik wrote: >> >> > This feature incurs a performance penalty in larger filesystems, it is >> > recommended for use with filesystems of 1 GiB or smaller. >> >> Maybe slightly stronger, for example: >> >> This feature incurs a performance penalty for larger filesystems and it >> is ONLY recommended for use with filesystems of 1 GiB or smaller. >> >> Is it worth having a check and a warning printed if a user does >> try and make a filesystem larger than 1GiB with this option ? >> >> Just in case they don't RTFM... >> > > No because depending on your usage it's actually kind of usefull for anything > less than 5 GiB, and you're only looking at about a 5-10% perf degredation > when > using it on larger filesystems. Thanks, >
Then a warning of 10% slowdown if > 10GB would be good. It's surprising how many will just read some forum post and not concern themselves with the docs at all. And making them type "yes" if > 100GB is probably a good idea too... -- 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
