Should i signup for a worker-dyno to get delayed-jobs working on Heroku?

Am a bit confused, If I have to signup for Worker-Dyno to get the delayed-jobs working. This 开发者_运维知识库article didn't specify any : http://devcenter.heroku.com/articles/delayed-job#setting_up_delayed_job

Please, help me out.

Thanks

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I think this article specify a worker on section Running DJ Workers on Heroku/Bamboo with the command heroku workers 1 and on section Running DJ Workers on Heroku/Cedar with heroku scale worker=1

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yes, you need a worker to run jobs in the background.

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Starting from Cedar, you can have a worker dyno for free, but that means you don't get the free web dyno, which certainly complicates things.

See the Scaling web dynos to 0 paragraph of the documentation.