netdev - Re: e1000 full-duplex TCP performance well below wire speed

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Message-ID: <47A21C73.4070301@hp.com>
Date:	Thu, 31 Jan 2008 11:07:31 -0800
From:	Rick Jones <rick.jones2@...com>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>
CC:	Bruce Allen <ballen@...vity.phys.uwm.edu>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	netdev@...r.kernel.org,
	Carsten Aulbert <carsten.aulbert@....mpg.de>,
	Henning Fehrmann <henning.fehrmann@....mpg.de>,
	Bruce Allen <bruce.allen@....mpg.de>
Subject: Re: e1000 full-duplex TCP performance well below wire speed

>>Sounds like tools to show PCI* bus utilization would be helpful...
> 
> 
> that would be a hardware profiling thing and highly dependent on the part sticking
> out of the slot, vendor bus implementation etc... Perhaps Intel has some tools for
> this already but I personally do not know of any :/

Small matter of getting specs for the various LBA's (is that the correct 
term? - lower bus adaptors) and then abstracting them a la the CPU perf 
counters as done by say perfmon and then used by papi :)

rick jones
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