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From Markus Weimer <>
Subject Re: Announcing Amazon Elastic MapReduce
Date Fri, 03 Apr 2009 15:39:59 GMT

On 03.04.2009, at 16:59, Sean Owen wrote:

> As a benchmark I ran the 10 million rating GroupLens data set, on a  
> high CPU
> extra large instance. It generated recommendations for all 71K users  
> in
> about 10 hours, costing a bit more than $8. That is a kind of worst  
> case;
> you can recommend for only a subset of users or trade some accuracy  
> for
> speed.

Thanks for that benachmark data! Does taste make use of all of the  
cores and memory in the extra big instance?



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