Might want to watch posting in HTML format. Some of the list (justifiably)
get a little cranky about it.
As for your performance, you might want to check your HD settings with
"/sbin/hdparm". Unless you are using SCSI drives, you most likely don't
have the drives running with DMA enabled. This roughly doubled my transfer
rates.
Jamin W. Collins
-----Original Message-----
From: Ed Lazor [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 02, 2000 1:01 PM
To: [EMAIL PROTECTED]
Subject: Linux Network Performance Slower Than NT, please help
Hi =) I setup a small network and did some testing to discover I'm not
achieving maximum network performance. The bottleneck appears in ftp'ing
files with the RedHat server. Any ideas on how to improve performance?
To test the computers involved, I've tried different configurations and
approaches. I've included as much information as possible. I tested using
different network cables to eliminate this as the source of the problem.
Thanks in advance for any ideas or advice you might have =)
-Ed
----------------------------------------------------------------------------
-------------------------------------------------------
Configuration Information
----------------------------------------------------------------------------
-------------------------------------------------------
First machine:
Intel PII-450, 396mb ram, Intel Pro 100+, Windows 2000 Pro w/SP1
Second machine:
Athlon 750, 512mb ram, Intel Pro 100+, Windows 2000 Pro w/SP1
Third machine:
AMD K6-350, 128mb ram, 3COM 3c905c, RedHat 6.1 (2.2.12-20 kernel)
Switch: D-Link DSS-8+, 8-port 10/100Mb switch
Networking protocol: TCP-IP
FTP Server #1: Servu-FTP for Windows (default install)
FTP Server #2: ProFTPD 1.2.0pre10 (default install)
Intel Pro 100+ drivers: v4.1.1 drivers available at Intel's web site
http://support.intel.com/support/network/adapter/pro100/pro100plus/software.
htm
3COM 3c905c drivers: 3c90x-1.0.0i.tar.gz) from 3COM's web site.
http://support.3com.com/infodeli/tools/nic/3c905c.htm
----------------------------------------------------------------------------
-------------------------------------------------------
Testing Results
----------------------------------------------------------------------------
-------------------------------------------------------
1) 1st and 2nd machine connected at 100Mb full-duplex to the switch
transferring files via ftp. Maximum transfer rates averaging 85Mbps.
Perfect =)
2) 2nd and 3rd machine connected at 100Mb full-duplex to the switch
transferring files via ftp. Maximum transfer rates averaging 40Mbps.
Imperfect:(
3) 2nd and 3rd machine connected at 100Mb full-duplex via cross-over cable.
Maxium transfer rates averaging 40Mbps. Imperfect:(
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