I had read in many places that Vista file transfers (copy, move) would be
faster if the feature called “Remote Differential Compression” (RDC) were
turned off. So I did a quickie test today, consisting of copying a 1.91 GB
folder from my main hard drive to a folder on an external USB drive.
With RDC turned on: 3:23 - three minutes and 23 seconds (with a stopwatch).
With RDC turned off: 2:25 – two minutes and 25 seconds.
So this quickie test reduced the copy time by about one minute, or a 33%
improvement. Not sure it is a valid test, but interesting. I also am
observing much faster file copy and move within my hard drive, remarkably
so. The whole system feels faster. Note that I did not do a reboot after
turning RDC off. I will leave it off, because even though my file
transfers were quite fast before, they are even faster now.
Do other users here have RDC on or off ?
From what I read, it seemed like RDC would be useful for computers in a
network (mine is a stand-alone machine). Anything ‘bad’ likely to happen
from turning off RDC?
"John Hanley" <firstname.lastname@example.org> wrote in message news:...
>I have no problems or delays copying/moving files in Vista (same as XP),
>never have had a problem. I can also copy to the "My xxx" folders with no
>problem. Yes, there is a hindrance to copying to the straight C: or
>"Program Files', but why would I want to do that anyway, that is not a
>place for everyday files and folders, so I am happy that it asks my
>permission to move things there (and I don't). I have seen sources that
>say to turn off "Remote Differential Compression" to speed things up, but
>my RDC is turned on and my file transfers are plenty fast. Still, you
>might try disabling RDC and see if it helps. Here's some stuff about RDC
>and file copy times:
> Control Panel|Programs and Features|Turn Windows Features on or
> off|uncheck Remote Differential Compression.
> "Dave" <email@example.com> wrote in message
>> There shouldn't be a problem as long as you don't try to copy to C:\, or
>> to "Program Files", or to any of the "My xxx" folders.
>> "Bill Conner" <Bill.Conner.firstname.lastname@example.org> wrote in
>> message news:Bill.Conner.email@example.com...
>>> So what's the deal with the interminable copies and moves with Vista?
>>> Can't MS get anything right? There's something going on in the
>>> background someplace that hoses file and directory transfers *-on the
>>> same computer-*. I turned off the ridiculous indexing for searches, no
>>> luck there. I even tried an external command (mv in Cygwin) and it still
>>> took too long. I suspect that the files I think are available for plain
>>> old copy and move operations are really some demented abstraction - the
>>> "files" and "Folders" are merely representations of some bizarre MS
>>> database scheme. Rather than just talk to the disk sector in the usual
>>> way, a disk request has to first navigate some convoluted maze of really
>>> useless internal dependencies. Bet it's related to Microsoft's version
>>> of security. Any ideas?
>>> Bill Conner
>>> Posted via http://www.vistaheads.com