Re: Another rfe: "cp" this time

[Bruce Korb]

On 04/27/12 12:57, Pádraig Brady wrote:
> > Note you could test your multiple readers idea simply like:
> >
> >   (
> >     dd bs=32KiB skip=0000 seek=0000 count=1000 conv=notrunc&
> >     dd bs=32KiB skip=1000 seek=1000 count=1000 conv=notrunc&
> >     dd bs=32KiB skip=2000 seek=2000 count=1000 conv=notrunc
> >   )>  /local/file<  /cifs/file
> >
> > A simple wrapper could be used to start the correct number of dd processes.
>
> Actually each dd process would have to maintain the file offsets
> independently something like:
>
> > file.out
> (
>   dd if=file.in of=file.out bs=32KiB skip=000 seek=000 count=100 conv=notrunc&
>   dd if=file.in of=file.out bs=32KiB skip=100 seek=100 count=100 conv=notrunc&
>   dd if=file.in of=file.out bs=32KiB skip=200 seek=200           conv=notrunc
>   wait
> )

Well, I tried a non-zero skip by itself and it just died, copying nothing.
So I kicked off the pcopy and, though it is still cranking along,
it won't be 10 hours to finish:

$ ls -gol /mnt/goflex/priv
total 2145624
-rw------- 1 379535360 Apr 27 13:15 iso-0 <<== done
-rw------- 1 259637248 Apr 27 14:23 iso-1
-rw------- 1 259637248 Apr 27 14:23 iso-2
-rw------- 1 259637248 Apr 27 14:23 iso-3
-rw------- 1 259637248 Apr 27 14:23 iso-4
-rw------- 1 259637248 Apr 27 14:23 iso-5
-rw------- 1 259637248 Apr 27 14:23 iso-6
-rw------- 1 259637248 Apr 27 14:23 iso-7
-rw------- 1     90112 Apr 27 12:20 iso-8 <<== done

It is 2/3 done now and 2 hours in.

> Could you link to pcopy for reference?

Link?  no.  Copy?  yes.  But it is a long way from being ready for prime time.
And I think it belongs in "cp". :)

pcopy-0.1.tar.xz
Description: application/xz