Re: Expected file transfer speeds over Gigabit?
From: Roland Hall (nobody_at_nowhere)
Date: 10/23/04
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Date: Sat, 23 Oct 2004 13:12:19 -0500
"ohaya" wrote in message news:417950A2.33EC2E4F@cox.net...
: If anyone has done any timed testing or benchmarking for file transfers
: between two machines running Windows 2000 Server with GigE adapters, I
: was wondering if you could post your results?
:
: I'm doing some testing between two servers with Xeon processors and
: Intel NICs, with two large compressed files, and am getting results from
: about 11 Mbytes/sec to 26 Mbytes/sec, depending upon what software I use
: for testing the transfers. The test files are about 700 Mbytes and
: about 4 Gbytes. The systems are booted from RAID'ed SAN volumes, and
: I've measured the 'drive' performance using HDTach and Sandra, and got
: about 90 Mbytes/sec average speed, so 'disk' speed should be a small
: factor.
:
: I've been testing with FTP and with Robocopy (from the Windows Resource
: Kit). I've done some tweaking of Registry, with little or no
: improvement, but the results above were on clean, untweaked installs.
:
: I've also done pure network testing using netperf, etc., and got about
: 300 Mbits/sec using default parameters, and 900+ Mbits/sec using
: non-default parameters, but now I'm trying to see how 'real' transfer
: performance would be.
:
: For FTP, on the server side, I'm using the MS FTP server, and for the
: client side, I've used both the MS command line FTP client and the NCFTP
: client.
:
: The 26 Mbytes/sec results were using Robocopy, and in all cases, CPU
: Utilization is less than 10% using both Perfmon and Task Manager, so CPU
: load doesn't appear to be an issue.
:
: If anyone has done any similar testing, I'd be very interested in
: hearing about your results, as I'm trying to 'sanity check' what I'm
: finding, i.e., that, at best, it's only possible to get about 1/4 - 1/3
: of the true network bandwidth.
Now tell us about the infrastructure of your interconnectivity equipment
since that might be where your bottleneck is and it is a controlled
environment or are you in the middle of production?
I'll have additional follow-up questions after your reply.
-- Roland Hall /* This information is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. */ Online Support for IT Professionals - http://support.microsoft.com/servicedesks/technet/default.asp?fr=0&sd=tech How-to: Windows 2000 DNS: http://support.microsoft.com/default.aspx?scid=kb;EN-US;308201 FAQ W2K/2K3 DNS: http://support.microsoft.com/default.aspx?scid=kb;EN-US;291382
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