Re: Q: Filesystem block sizes available?

[Steve Lord <lord@xxxxxxx>]

On Tue, 2001-11-13 at 09:04, Roy Sigurd Karlsbakk wrote:
> > The fs blocksize has not much to do with the amount it writes in one go.
> > XFS uses delayed allocation so it will probably write a lot of data at once
> > anyways.
> 
> How about reading? The reading is really essensial here - writing is done
> by batch, and can take whatever time it likes (almost :-)

Reading in Linux does readahead - but I do not think it asks for more
than 32 pages at once. We are using mostly the generic linux code paths
for read unless you use O_DIRECT.

Steve

 
-- 

Steve Lord                                      voice: +1-651-683-3511
Principal Engineer, Filesystem Software         email: lord@xxxxxxx