lkml.org 
[lkml]   [2001]   [Feb]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [rfc] Near-constant time directory index for Ext2
Martin Mares wrote:
>
> Hello!
>
> > True. Note too, though, that on a filesystem (which we are, after all,
> > talking about), if you assume a large linear space you have to create a
> > file, which means you need to multiply the cost of all random-access
> > operations with O(log n).
>
> One could avoid this, but it would mean designing the whole filesystem in a
> completely different way -- merge all directories to a single gigantic
> hash table and use (directory ID,file name) as a key, but we were originally
> talking about extending ext2, so such massive changes are out of question
> and your log n access argument is right.
>

It would still be tricky since you have to have actual files in the
filesystem as well.

-hpa

--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:17    [W:0.285 / U:0.128 seconds]
©2003-2014 Jasper Spaans. Advertise on this site