SUMMARY: Gigabit Performance
2007-12-24 21:05:00
1 Mbps of data throughput, with a minimum of 167mhz to handle interrupts.
Still would love to know a formula of how to calculate the cost of a CPU
cycle, but thats not a big deal. Just want to impress the PHB.
Thanks again,
D.
-----Original Message-----
From: Darvin Pope [mailto:darvin_pope at hotmail.com]
Sent: 24 October 2001 15:32
To: codeprof at codeprof.com
Subject: Questoin regarding Gigabit Ethernet performance
We have gigabit ethernet on all our servers, a decision made before I got
here. According to our network admin, the utilization never exceeds
100MBPS.. When using the Gigabit ethernet cards in our more heavily
utilized servers, our processors take a hit. I know Gig-E cards affect
performance because they operate on INT7 and cause mutexes to block & spin,
but what i'd like to know is if anyone knows the precise amount of processor
utilization a gigabit ethernet adapter can eat? I'm attempting to
calculate the cost per CPU cycle (anyone know how to do that?!) and how much
we're wasting.
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