Date: Mon, 30 Jul 2001 17:28:13 -0400 From: "Deepak Jain" <deepak@ai.net> To: "Mike Wade" <mwade@st3.com>, <freebsd-net@FreeBSD.ORG> Subject: RE: FreeBSD 4.3 -> Windows 2000 Network Performance Message-ID: <GPEOJKGHAMKFIOMAGMDIGEOFELAA.deepak@ai.net> In-Reply-To: <Pine.BSF.4.21.0107301707090.51122-100000@fxp0.net-ninja.com>
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Have you tried the Windows 2000 -> Windows 2000 scenario?
Deepak Jain
AiNET
-----Original Message-----
From: owner-freebsd-net@FreeBSD.ORG
[mailto:owner-freebsd-net@FreeBSD.ORG]On Behalf Of Mike Wade
Sent: Monday, July 30, 2001 5:20 PM
To: freebsd-net@FreeBSD.ORG
Subject: FreeBSD 4.3 -> Windows 2000 Network Performance
I'm serving several Windows 2000 clients from several FreeBSD 4.3 servers
and I'm running into a performance bottleneck somewhere which appears to
be on the Windows 2000 side of things. Performance w/ FreeBSD -> FreeBSD
is great!
Hardware:
* Intel 2x1 Ghz CPUs
* 1 gig of RAM
* Extreme Summit 1i w/ Copper and SX Interfaces
Performance w/ ttcp (for UNIX + Win32):
FreeBSD 4.3 + Netgear 622T -> FreeBSD 4.3 + Netgear 622T = 875 Mbps
FreeBSD 4.3 + Netgear 622T -> Windows 2000 + Netgear 622T = 350 Mbps
FreeBSD 4.3 + Netgear 622T -> Windows 2000 + 3Com 3c985-SX = 350 Mbps
I've tried running multiple instances (overlapping) of ttcp w/ no
performance increases (ie: each instance halfs thruput) and I've tried
tweaking the following on FreeBSD with no results:
sysctl -w net.inet.tcp.delayed_ack=0
sysctl -w net.inet.tcp.sendspace=65535
sysctl -w net.inet.tcp.recvspace=65535
Does anyone have any opinions on how to tweak the performance on either
end? Thanks in advance!
---
Mike Wade (mwade@st3.com)
Network Engineer
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