Topic: Rsync Performance Question

[rick1908]

I am rsync'ing data from an old SME 5.6 server/hardware (server 1) to new 6.01 server/harware (server 2). Some of the old ibays are rather large and copying them via Windows Explorer was a bit slow. I got rsync (dungog rsync contrib) running over ssh between the two servers. However the transfer speed is terribly slow.

Here are a few throughput speeds I have odserved:

1. Windows Explorer drag/drop speed about 52KB/s

2. Rsync speed about 32KB/s

3. Internet downloads about 250KB/s

4. Throughput test from server 1 about 40 to 60 megabits/second (via WS_Ping ProPack)

5. Throughput test from server 2 about 40 to 60 megabits/second (via WS_Ping ProPack)

Both computers are connected to a switch and both are 10/100 network cards from the SME Hardware list.

Anyone have this kind of experience before? Is this normal rsync speed?

Server 1 = PIII 450 with 512MB Ram
Server 2 = PIV 2.4 with 1 gig Ram

Thanks for your help.

Rick Evans

P.S. The windows explorer speed was actually observed using a program called WinNc.net (a Midnight Commander clone for windows).

[guest22]

Hi,

Does the how-to says who the author is. Maybe you can contact him/her for specific problems on that specific contrib / how-to. Next to the info you probably will get in return, I'm sure Stepen Noble would appreciate your feedback!

RequestedDeletion

[rick1908]

Thanks, I have done that prior to posting here. However, thinking about the question further, I considered this a general rsync/networking type question.

The contrib is only a server manger front end.

I did get a reply from dungog. Their observation was that rsync dose carry more overhead, over drag-n-drop, as it performs a bit by bit comparison of the file.

My concern is more with the general network speed of copying. Why would the internet yeild greater copying(downloading) speeds over a server to server copy on the same subnet?

Thanks for your help.

-Rick