Re: dd in loop doesn't transfer full blocks

[email protected] (Paul Jarc) Thu, 09 Dec 2010 23:24:28 -0500

Newsgroups	gmane.comp.gnu.utils
Organization	What did you have in mind? A short, blunt, human pyramid?
Message-ID	<[email protected]>

jim <[email protected]> wrote:
> The problem is that dd never transfers a full block; $BS is about
> 400000, and each time through
> the loop, dd only transfers about 73xxx bytes, and sometimes less.
> This suggests [??] that the finite size of the pipe buffer is somehow
> involved

You can set ibs and obs independently for dd.  So ibs can remain the
same size, and obs can be 4096.


paul