Date: Wed, 20 Oct 2004 17:00:56 +0300 From: "Oleg Gawriloff" <barzog@telecom.by> To: "Eric Anderson" <anderson@centtech.com> Cc: freebsd-performance@freebsd.org Subject: Re: decreasing interrupt CPU load Message-ID: <006001c4b6ad$38a8cac0$0c0210ac@ADMIN1> References: <004001c4b69d$80e21f40$0c0210ac@ADMIN1> <41766350.4080901@centtech.com>
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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.
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