A messaging application checks the server for new messages every 10 seconds, regardless of whether any messages have arrived. An alternative design uses push notifications, where the server notifies the application only when a new message exists. Both designs deliver messages to the user. Why does the push-based design consume significantly less energy?

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Accepted Answer

The push design eliminates the repeated requests that return empty results, performing work only when data exists to deliver

Answer

Push notifications use a more efficient network protocol than polling requests

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The push design compresses messages before sending them, reducing data volume

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The push design uses the processor’s cache more effectively than the polling approach

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A messaging application checks the server for new messages every 10 seconds, reg...

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