Re: Improving XFS file system inode performance

Dave Chinner
2010-11-23T20:37:39Z

On Tue, Nov 23, 2010 at 09:27:36PM +0100, Michael Monnerie wrote:
> On Dienstag, 23. November 2010 Jesse Stroik wrote:
> > As this file system is likely to continue to increase in number of
> > files at a fairly rapid rate, we're going to need a long term
> > strategy. I suspect it may be necessary in the near future to
> > double or quadruple the memory to 32GB or 64GB, but the uncertainty
> > in the formula makes me nervous.
>
> Using tools like "munin" helps you see the problem in graphs, so you can
> easily check what's going on. Munin draws graphs from a lot of
> parameters of a system, and helped me find problems that you couldn't
> find otherwise.

For XFS specific stats, PCP is your friend. It knows all about the
stats in /proc/fs/xfs/stats as well as most system level stats that
other toolѕ also collect and display...

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com