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Research: AMD more efficient than Intel

The tests were performed on servers configured with 2, 4, 6 and 8 gigabytes of main memory at various transaction processing load levels. The results show that for certain configurations and at certain load levels the Intel Xeon based server was 2.4 to 11.7 percent more power efficient while in other cases the AMD Opteron based server was 9.2 to 23.1 percent more power efficient. In addition, when the systems were idle and waiting for transactions to process, the AMD server was 30.4 to 53.1 percent more power efficient.

Power consumption while the servers are idle is particularly significant since many servers spend most of their time waiting for work. A November 16, 2006 press release(1) from IBM quotes a report by the Robert Frances Group(2) which states that on average servers in datacenters are idle 80 to 85 percent of the time.

Other observations that can be made from the test results include: 1) Larger memory configurations deliver both higher throughput and better power efficiency, 2) Intel's power efficiency advantages decrease as memory size increases, 3) AMD's power efficiency advantages increase as memory size increases, 4) For primarily calculation type workloads, the Xeon delivers 8.0 to 14.0 percent higher peak throughput, and 5) For primarily disk I/O intensive workloads the Opteron delivers 11.3 to 19.4 percent higher peak throughput.

These test results were collected by Neal Nelson's second generation Server Power Efficiency Benchmark. This test is a client server benchmark where world wide web transactions are processed against a server configured with Novell's SUSE Linux Enterprise Server, the Apache2 web server software and the MySQL relational database. The benchmark subjects a server to various user loads, reports the power consumed at each load level and provides meaningful comparisons of server power usage.


Read Neal Nelson benchmark Lab's news article and here's the full PDF report.

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A Collection of Threnodies : Part 1

Whale Fall
-----------------

Dress me up in my new threads
clasp my greasy palms
grease my hair
I'm ready for the fall


Watch at all the decadence
watching the avalanche
I'm slipping down
losing my buoyancy


What's become of us
where have we come
this far, this close
close to the doors


I hear them, sublimal chants
I'm on the run
I race through the human sea
I am the king!


I'm the slave
to my own undoings
I'm the jester in my courtyard
We jest as we run


We're strolling on that thin rope
we grope as we rope
we're true heros
we're the survivors


we're the scavengers
we're the friends
we're the lovers
we're the unbred


Soon awaiting the fall
we're lurking on us
we're osedaxing us
we're soon going to be done
we'll soon be arrested




*osedax(bone devourer, newly discovered marine genus) feeds on a fallen(sunken) whale carcass(which is also called a whale fall). Read more here