Slow file transfer

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Lord_Dragonus
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Last seen: 9 years 1 day ago
Joined: 17.06.2012 - 11:24
Slow file transfer

Hello,

if I copy files from one machine to another machine (both connected with 1GBit/s), rsync only uses 25 MBit/s (about 3 MBytes/s). This is very slowly. I tried another software named Deltacopy, which uses rsync and cygwin too. It copied the files with more then 20 MB/s. One one side I installed the server, on the other side, I used the client. What can I do to increase the speed? Using the other software is one option for me, but I paid 39$ to you and I think, you can help me with the problem.

Greetings,

Michael

itefix
Online
Last seen: 3 min 3 sec ago
Joined: 01.05.2008 - 21:33
We don't know any specifics

We don't know any specifics about your setup. However, We've set up a Cwrsync test bed consisting of two 64-bit Windows 2008 R2 blade servers (2xQuad Core Intel Xeon processors, 16 GB RAM, 1 Gbps ethernet, 120 GB fast system disk). Cwrsync client and server are installed on each machine. We've achieved quite decent throughput for large files:

  • Two files (2.07 GB, 532 MB) - about 23 MB/s
  • One file (8.31 GB) - about 28.5 MB/s

 

Rsync module defined at server side (rsyncd.conf):

path=/cygdrive/c/temp/sync

read only = false

transfer logging = yes

 

Rsync command used at clietn side:

"c:\cwrsync\bin\rsync.exe" --recursive --verbose --stats "/cygdrive/C/cwrsync/test" "x.x.x.x::test"



Test run 1 - two files (2.07 GB, 532 MB)

Rsync process stats:
Memory - Working set: 19456000    Peak working set: 19533824

I/O - Read operations: 596    Write operations: 6    Other operations: 2648
I/O - Read bytes: 5747150    Write bytes: 41814    Other bytes: 1022074

Log file C:\Users\xxxxxx\AppData\Roaming\Cwrsync\Cwrsync.log, size: 977, Last 3 lines:

2012/06/17 13:23:53 Total bytes received: 50
2012/06/17 13:23:53 sent 2792023211 bytes  received 50 bytes  23364211.39 bytes/sec
2012/06/17 13:23:53 total size is 2791682280  speedup is 1.00


Test run 2 - One file (8,31 GB)


Rsync process stats:
Memory - Working set: 19496960    Peak working set: 19697664

I/O - Read operations: 1098    Write operations: 6    Other operations: 4166
I/O - Read bytes: 12960640    Write bytes: 41814    Other bytes: 1048552

Log file C:\Users\xxxxxx\AppData\Roaming\Cwrsync\Cwrsync.log, size: 931, Last 3 lines:

2012/06/17 13:59:42 Total bytes received: 31
2012/06/17 13:59:42 sent 8934473892 bytes  received 31 bytes  28961017.58 bytes/sec
2012/06/17 13:59:42 total size is 8933383296  speedup is 1.00