On Thursday 14 May 2009 12:06, Hall, Ken (GTS) wrote:
>I would think then that bind mounts would have similar issue. Has anyone
> looked into this?
You mean using more CPU? I wouldn't think so because if I remember correctly
a bind-mount just causes another indirection through the mount table when
doing pathname resolution. It's far simpler than unionfs when it has to
switch from looking at one filesystem to another to find a pathname in a
lower level filesystem. I think that has to make multiple calls through the
VFS to do that, and that would be much more expensive.
That's just off the top of my head; I'm not really a kernel hacker so I only
kinda-sorta know this stuff.
- MacK.
-----
Edmund R. MacKenty
Software Architect
Rocket Software
275 Grove Street · Newton, MA 02466-2272 · USA
Tel: +1.617.614.4321
Email: [email protected]
Web: www.rocketsoftware.com
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