Date: Tue, 6 Apr 2004 21:31:29 +0200 From: Marian Durkovic <md@bts.sk> To: Mike Hunter <mhunter@ack.Berkeley.EDU> Cc: freebsd-net@freebsd.org Subject: Re: Broadcom BCM5788 jumbo frames? (FBSD 5.2.1) Message-ID: <20040406193129.GA24515@us.svf.stuba.sk> In-Reply-To: <20040406180020.GA21071@ack.Berkeley.EDU> References: <20040406180020.GA21071@ack.Berkeley.EDU>
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> While I have everybody's attention, what's a reasonable goal for
> throughput between two of these cards? I broke through the 33mhz pci
> barrier and am now getting iperf results of:
Not sure about BCM chips, but good GE cards can do wire speed:
Intel PRO/1000 - controller 82547EI integrated on motherboard ASUS P4C800-E
(266 MByte/s CSA connection)
Theoretical max: 941.482 Mbit/s
TCP Window: 128 KB
./nttcp -T -n1000000 147.175.1.37
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
l-198967296 34.81 7.68 941.3511 4267.6174 1000000 28727.76 130237.3
1-198967296 34.81 5.00 941.3099 6557.3390 1114605 32018.70 223048.2
M.
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