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[DPRG] similarity between Linux on SBC and in the cloud

Subject: [DPRG] similarity between Linux on SBC and in the cloud
From: Chris Jang christopher.jang at yahoo.com
Date: Thu Jun 5 08:32:35 CDT 2008

I was reading through the "Amazon Elastic Compute Cloud Developer Guide"
yesterday. A surprise was the section about "Creating and Preparing AMIs". The
AMI (Amazon Machine Instance) is a root filesystem image in a loopback file. It
is a lot like what you do when booting Linux off flash on a single board
computer.

I had never thought of the huge scale compute cloud and small scale embedded
computer as having any similarity. For both, development is done in an
environment which is very different from the target host. In one case, it is a
SBC. In the other, it is a cloud. So there are similarities.

There are a few robots (e.g. Tankbot) which boot off compact flash and run
Linux. I am toying with the idea of provisioning a large amount of EC2 capacity
and using this for compute intensive tasks while a robot is running (i.e.
vision). Latency will be high (even higher with an EVDO WWAN connection between
robot and cloud) - but real time performance is unrealistic with current
technology anyway.


      

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