On Wed, Oct 09, 2013 at 12:54:03AM +0800, Shilong Wang wrote: > Hi David, > > 2013/10/8 David Sterba <dste...@suse.cz>: > > On Mon, Oct 07, 2013 at 03:21:46PM +0800, Wang Shilong wrote: > >> You can use it like: > >> btrfs qgroup show --block-size=m <mnt> > >> > >> Here, block size supports k/K/m/M/g/G/t/T/p/P/e/E.
k = SI prefix, kilo K = ? (IEEE prefix kibi?) m = SI prefix, milli M = SI prefix, mega g = SI unit, grams G = SI prefix, giga t = ? T = SI prefix, tera p = SI prefix, pico P = SI prefix, peta e = ? E = SI prefix, exa Some confusion here, I think. :) > > There is no distinction between the 1000 and 1024 based prefixes, also > > no way to get the raw values in bytes. I don't have a suggestion how to > > do that, merely letting you know that this could go separately (this and > > the "-h" patch, the rest shall be integrated). > > I implement this like the command 'du'. > > In default, we print result in bytes. And block size don't give a byte > unit implicitly. > Aslo i don't know why we need to distinct 1000 and 1024, i don't > have any ideas about this. Because when you have a terabyte of data, the difference between the two is 10%. If you're putting in this kind of infrastructure, it's not much of an addition to report in either SI decimal or IEEE binary scales. > > Also, the numbers in the table should be aligned to the right: > > Yes, this should be fixed. > > Thanks, > Wang > > > > $ btrfs qgroup show -h -p /mnt/ > > qgroupid rfer excl parent > > -------- ---- ---- ------ > > 0/5 900.00KiB 900.00KiB --- > > 0/267 688.00KiB 12.00KiB 1/5 > > 0/268 684.00KiB 8.00KiB 1/5 > > 0/269 6.71GiB 4.00KiB 1/1 > > 0/277 6.71GiB 4.00KiB 1/1 > > 0/278 39.74GiB 39.74GiB 1/2 > > 1/1 6.71GiB 6.71GiB --- > > 1/2 39.74GiB 39.74GiB --- > > 1/5 696.00KiB 696.00KiB --- Note that the SI mandate a space between the value and the unit. Note also, for future reference, that SI use k for 10^3, whereas IEEE use Ki for 2^10. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- I'll take your bet, but make it ten thousand francs. I'm only --- a _poor_ corrupt official.
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