Channel bonding.

[Steven Hartland]

I will be putting together a dual Opteron this weekend with the hope
of testing network throughput.
Spec will be:
Dual 244, 2Gb RAM, 5x400Gb SATA RAID 5 on a Highpoint 1820a
Broadcom 5705, Intel gE and a Intel dual port ( PCI 32 ) for comparison.

Will let you know the results.

    Steve

----- Original Message ----- 
From: "Sean" <seancody at gmail.com>
To: "Eric Anderson" <anderson at centtech.com>
Cc: <freebsd-performance at freebsd.org>
Sent: 22 April 2005 17:50
Subject: Re: Channel bonding.


> Are the gig nics in 64bit slots?  32bit slots can slow you down a bunch.
>   Also, I've seen some cases where the PCI bus itself is the bottleneck
> with multiple high-IO boards installed on the same bus.
> 
Yes.  The 3ware card and the Dual Port em are both in the PCI-X 100
slots (the first two).
There are no 32bit cards in the machine.

Is there some method I can use to determine if the PCI bus is the
bottleneck or even to determine the level of contention on the bus?

I've been looking at the newer Opteron boards with multiple PCI buses
but that's a lot of money to spend on my hunch.

-- 
Sean
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