Well I belive I found the problem. It was a bad network card, after
replacing it, and upgrading rsync, my SSHD usage is between 42 and 72%, and
rsync is about about 23%, this is the initial download as I need to test thr
progess. The download now takes about 35 mins for 11 GB, much better.
Thanks for everyones help.
Steve Sills
Platnum Computers, President
http://www.platnum.com
steve@platnum.com
----- Original Message -----
From: "jw schultz" <jw@pegasys.ws>
To: "Steve Sills" <steve@platnum.com>
Sent: Thursday, January 22, 2004 2:02 PM
Subject: Re: Rsync's Speed
> On Thu, Jan 22, 2004 at 01:52:23PM -0700, Steve Sills wrote:
> > 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.
>
> 1.7% is nothing. Upgrading rsync will almost certainly
> improve performance.
>
> Note: 100MB ~= 1Gb, 10MB ~= 100Mb. Disk and disk interface
> speeds are mostly measured in MB (FC excepted) network
> speeds are mostly measured in Mb.
>
>
> >
> >
> > 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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> > > > http://lists.samba.org/mailman/listinfo/rsync
> > > > Before posting, read:
http://www.catb.org/~esr/faqs/smart-questions.html> > > >
> > > >
> > > >
> > > > --
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> > > > Before posting, read:
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> > >
> > > --
> > > ________________________________________________________________
> > > J.W. Schultz Pegasystems Technologies
> > > email address: jw@pegasys.ws
> > >
> > > Remember Cernan and Schmitt
> > > --
> > > To unsubscribe or change options:
> > http://lists.samba.org/mailman/listinfo/rsync
> > > Before posting, read:
http://www.catb.org/~esr/faqs/smart-questions.html> > >
> > >
> >
> >
>
> --
> ________________________________________________________________
> J.W. Schultz Pegasystems Technologies
> email address: jw@pegasys.ws
>
> Remember Cernan and Schmitt
>
>