Re: Performance problem (I/O)

From: Peter da Silva (peter_at_abbnm.com)
Date: 03/19/04 

Date: Fri, 19 Mar 2004 19:44:53 +0000 (UTC)

In article <harris-F51A96.21182918032004@cacnews.cac.cpqcorp.net>,
Bob Harris <harris@zk3.dec.com> wrote:
> When you restored the file system using tar, you placed all the files in
> the exact order that you would then back them up. You positioned the
> metadata for each file next to the file that would preceed it. As a
> result you maximized your backup performance.

AdvFS doesn't use an analog of the UFS cylinder group technique to keep
metadata near the file data?

That would explain some of the performance problems we see in an app that
writes a lot of small files. 

-- 
I've seen things you people can't imagine. Chimneysweeps on fire over the roofs
of London. I've watched kite-strings glitter in the sun at Hyde Park Gate.  All
these things will be lost in time, like chalk-paintings in the rain.   `-_-'
Time for your nap.  | Peter da Silva | Har du kramat din varg, idag?    'U`