Bad Metadata performances for XFS?

[Dave Chinner]

On Wed, Jul 06, 2016 at 12:49:29PM +0100, Roger Willcocks wrote:
> On Tue, 2016-07-05 at 14:34 -0600, Chris Murphy wrote:
> > On Mon, Jul 4, 2016 at 7:43 PM, Wang Shilong <wshilong at ddn.com> wrote:
> > >
> > >
> > > I understand that this is single thread Limit, but I guess there are some
> > > other Limit here, because even single thread creating 50W files speed
> > > is twice than 200W files.
> > 
> > Watts or Wolframs (tungsten)?
> > 
> > 50W!=50000. You could write it as 50k and 200k. It's unlikely to get
> > confused with 50K and 200K, which are temperatures, because of
> > context. But W makes no sense.
> > 
> > 
> > 
> 
> I suspect it's an abbreviation for the (Chinese) unit 'wan'
> 
> https://www.quora.com/Why-do-Chinese-people-count-in-units-of-10-000
> 
> so it makes perfect sense but it's not an SI unit.

Thanks, Roger - it does make sense now the unit being used has been
explained. This is a canonical example of how being explicit about
units being used and what they mean is of prime importance to
understanding what each other are saying.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com