Subject: Re: maximum size of 8KB in copyin/out
To: , <email@example.com>
From: Toru Nishimura <firstname.lastname@example.org>
Date: 03/10/2007 08:52:12
Maen Suleiman email@example.com wrote;
> we have noticed
> that the maximum buffer size is 8KB (for example when using 'dd
> if=/dev/sd0c of=/dev/null bs=131072' ) ,
> Is there a reason for this?
In a short and general answer, Yes.
> can this size be increased ?
Depends. It depends on how deep you understand Unix block I/O buffer
scheme and how it's implemented. It's a time to go library and collect
Good Unix Books to read.
Toru Nishimura/ALKYL Technology