From owner-freebsd-performance@FreeBSD.ORG  Wed Oct 20 14:06:05 2004
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From: "Oleg Gawriloff" <barzog@telecom.by>
To: "Eric Anderson" <anderson@centtech.com>
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Date: Wed, 20 Oct 2004 17:00:56 +0300
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cc: freebsd-performance@freebsd.org
Subject: Re: decreasing interrupt CPU load
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Hello, Eric!
You wrote to "Oleg Gawriloff" <barzog@telecom.by> on Wed, 20 Oct 2004 
08:08:32 -0500:

 EA> I've had really great performance with the em NICs, and bad experiences
 EA> with bge's (the hardware is flaky).
OK, we'll try. Is there any problems with any of supported chipsets in 
em-driver with polling? There many negative answer about polling support in 
fxp on 82550, and good answers about 82558 and 82559 with fxp-driver.
 EA> Also - it's possible that your bus is the bottleneck - depending on how
 EA> many NICs you have, the type of bus, and the motherboard.
Intel SCB2, integrated NIC on PCI 33Mhz bus. We use only one NIC, with five 
802.1q vlan sub-interfaces configured. Is there any ideas how can I diagnose 
bottlenecks on bus?

With best regards, Oleg Gawriloff.