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Write memo about the costs of hosting the gadget
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Description

Write a short memo about the costs involved of hosting the gadget on WMSE's servers.

The memo should include information about things like the cost per visitor/use (so that we can approximate the cost per year), any annualized fixed costs, and expected maintenance costs to keep the server up and running etc.

Event Timeline

Ground truths:

https://en.wikipedia.org/wiki/Wikipedia:Size_in_volumes

620 words per article.

https://phabricator.wikimedia.org/P13264

15 words per sentence.

41 sentences per article.

0,08552509 milliseconds of voice per byte

4404 bytes per word

376,652494495 milliseconds per word

233 seconds of voice per article

1.5:1 ratio synthesized voice:time spent synthesizing

155 seconds spent synthesizing mean article

1 CPU and 1GB RAM renders 15 000 articles per month at 100% load.

1 article consume 4400 bytes * 620 words = 3MB utterance files.

15 000 articles = 50 GB utterance files.

@kalle, can you link the resulting document? Then this can be closed.