Re: [RFS]: pcopy - a replacement for dd
At Sat, 2 Oct 2004 21:38:58 +0300,
George Danchev wrote:
> On Saturday 02 October 2004 21:25, Henrique de Moraes Holschuh wrote:
> > On Sat, 02 Oct 2004, George Danchev wrote:
> > > Desc: Pcopy is intended to be used when doing large disk(partition) to
> > > disk(partition) copying where dd is just too slow (and error prone).
> > When DD is slow, it just mean you should be using raw devices (see the raw
> > command)... :)
> I know about sct's raw utility (from the util-linux package ;-), but pcopy is
> a bit simpler and multithreaded copying program. Any objections, not to have
> pcopy included in the official archive ?
raw and O_DIRECT sometimes do not improve the performance because the
physical bus does not get tagged command queuing. One of idea to
decide your inclusion is to benchmark pcopy vs dd.