[ale] ext2fs and non-fragmentation

[Danny Cox]

Jeff,

On Thu, 2002-05-30 at 15:58, Jeff Hubbs wrote:
> A question, though:  is there anything in Linux that monitors FS
> structure and pushes things around for performance's sake independently
> of actual process writes?

	Not that I'm aware of.  As someone mentioned (Chris?), there is
periodically talk of creating a tool that could be run from cron, but it
hasn't been written yet.

	Personally, I use XFS from SGI, and am very satisfied with it.  It
performs much the same type of block clustering that ext2 does, plus it
journals meta data.  It has a program, "xfs_fsr", which looks for files
with multiple extents, and if it can find place to rewrite it in one
extent, it does so, and performs an internal "rename" (reinode?).

	Back when I was hacking hard at the kernel, and making many mistakes,
XFS saved me so much time, in that I didn't have to fsck a 5 GB /home on
every reboot (and there were many, dontcha know ;-).

-- 
kernel, n.: A part of an operating system that preserves the
medieval traditions of sorcery and black art.

Danny


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