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So they are using feedback to see how many people are watching a video to use more cpu for advanced compression - There is nothing innovative here - we want to make sure we provide resources to something thats viral and not to all videos, whats innovative here ? I think in cloud and all companies are using metrics to optimize their resources,

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I'd never heard of the practice, is it common with other video hosting services?

So I was commenting on the particular technique,

To Collect feedback metrics to judge usage and throw resources to optimize rather than blind optimizing every single video. These techniques are very simple but makes sense to use when you have such a high demand. But I would expect more from facebook.

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