Steve Sills
Platnum Computers, President
http://www.platnum.com
steve@platnum.com
----- Original Message -----
From: "Steve Sills" <steve@platnum.com>
To: "jw schultz" <jw@pegasys.ws>
Sent: Thursday, January 22, 2004 1:52 PM
Subject: Re: Rsync's Speed
> The source server is a Dual 800 Mhz /w a 7200 RPM 40 GB HDD, the dest
server> is a P III 450 with a 7200 RPM 30 GB HDD, both have a 100 MB/S network
card,> and attached to a 100 MB switch. The ssh was taking 1.7 % of the CPU
time,> and rsync 4.7 I have turned off compression, and will upgrade rsync to
2.6,> see if that helps any. Thanks for your help.
>
>
> Steve Sills
> Platnum Computers, President
> http://www.platnum.com
> steve@platnum.com
>
> ----- Original Message -----
> From: "jw schultz" <jw@pegasys.ws>
> To: <rsync@lists.samba.org>
> Sent: Thursday, January 22, 2004 1:42 PM
> Subject: Re: Rsync's Speed
>
>
> > On Thu, Jan 22, 2004 at 01:36:05PM -0700, Steve Sills wrote:
> > > Well, it is running under SSH, that could slow it down i
guess....
> >
> > Very easy to tell. If ssh is burning user-mode cpu time the
> > encryption is a factor.
> >
> > It is very unlikely the encryption is having any affect on
> > throughput. Unless you are on very old hardware the network
> > is slower than the CPU and for rsync the disk latency likely
> > makes it slower than the 10MBps network.
> >
> > >
> > > Steve Sills
> > > Platnum Computers, President
> > > http://www.platnum.com
> > > steve@platnum.com
> > >
> > > ----- Original Message -----
> > > From: "Streubert, Christoph"
<Christoph.Streubert@disney.com>
> > > To: "Chuck Wolber" <chuckw@quantumlinux.com>;
"Steve Sills"
> > > <steve@platnum.com>
> > > Cc: <rsync@lists.samba.org>
> > > Sent: Thursday, January 22, 2004 12:52 PM
> > > Subject: RE: Rsync's Speed
> > >
> > >
> > > I do not know the details of your syntax - however in case you
use
it -> > > encryption adds a lot of overhead to the transfer process. After
I
> > > turned off encryption (internal network with uncritical data)
speeds
> > > increased dramatically.
> > >
> > > C
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Chuck Wolber [mailto:chuckw@quantumlinux.com]
> > > Sent: Thursday, January 22, 2004 10:30 AM
> > > To: Steve Sills
> > > Cc: rsync@lists.samba.org
> > > Subject: Re: Rsync's Speed
> > >
> > >
> > >
> > >
> > > > During my initial download for my home directory backup, it
took
rsync> > >
> > > > over 6 hours to do the initial backup, but I can FTP the
stuff in
> > > > about 30 Mins. Is Rsync usualy this slow? I have
compression turned
> > > > on, and its across a 100 MB/S network, Anyone had this
problem
before?> > >
> > > In this case, I believe compression is actually slowing you down.
> > >
> > > -Chuck
> > >
> > >
> > > --
> > > http://www.quantumlinux.com
> > > Quantum Linux Laboratories, LLC.
> > > ACCELERATING Business with Open Technology
> > >
> > > "The measure of the restoration lies in the extent to which
we apply
> > > social values more noble than mere monetary profit." - FDR
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> >
> > --
> > ________________________________________________________________
> > J.W. Schultz Pegasystems Technologies
> > email address: jw@pegasys.ws
> >
> > Remember Cernan and Schmitt
> > --
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> >
> >
>
