[Info-vax] OS implementation languages

Simon Clubley clubley at remove_me.eisner.decus.org-Earth.UFP
Thu Aug 31 08:15:16 EDT 2023


On 2023-08-30, Bob Gezelter <gezelter at rlgsc.com> wrote:
>
> The other day I needed to copy a bare partition on a linux system. When refreshing my recollection of dd, noted that dd, for historical reasons, copies one block at a time. Increased performance by reading/writing a megabyte at a time. 
>

:-)

Adjusting dd command line options for efficiency is one of the first things
you learn to do when you start using dd for "serious" things. :-)

I learnt that back in the late 1990s when it comes to dd...

BTW, did you know you can send dd a signal to tell you how far along
in the copy process it is and to tell you how fast the copy is going ?

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.



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