> On a decently designed OS, there is no waste of IO bandwidth as > the OS will cache the data that has already been read. Obviously yes, but as most(?) of us run an indecently designed OS, we prefer to have a plan B in store. Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me.