Re: ext2fs enhacement/fix [re: shrinking directories]
Chris Wedgwood (chris@cybernet.co.nz)
Thu, 16 Jul 1998 18:44:29 +1200
On Thu, Jul 16, 1998 at 12:33:50AM -0400, Chad C Giffin wrote:
> Although it is really not a problem for most that directory files do not
> shrink on removal of directory entries, it still is a problem for some and
> should not be ignored IMO.
>
> I'd like to propose a solution that is not too complicated.
>
> The solution is simple. When a file system is found idle, a thread wakes
> up and systematicly house cleans the directory files. When the file
> system becomes active, the thread either
>
> 1. stops
> or 2. works on another directory that is not being accessed
> while operating at a very low priority
How does this scale to large machines like new-servers (where large
directories can indeed be an issue) where you might have 80GB of disk and
several million directories?
Oh, and such machines are _never_ idle. Not even close.
-cw
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