[Linux-cluster] FS Block Size Limit

Ken Preslan kpreslan at redhat.com
Fri Sep 3 19:36:09 UTC 2004

On Fri, Sep 03, 2004 at 12:15:30PM -0700, Mike Fedyk wrote:
> >Linux filesystems can't have block sizes greater than the machine's
> >page size.  For x86 and x86_64 that's 4096 bytes.  I've seen 16k pages
> >on a IA64 box, so you can go larger there.
> >
> I remember some threads on LKML about larger page sizes on x86.
> Not sure on the current status, but you'll want to look into "page cluster".

There are huge pages, meaning you can configure some subset of the pages
in a system to be a lot bigger than default (4MB on x86 boxes).  I don't
think that helps filesystem block sizes any.  Or were you thinking of
something else?

Ken Preslan <kpreslan at redhat.com>

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