Battery Consumption in MQTT Vs AMQP

[Vivek Rangi]

Hi!

    I am preparing a comparison chart between MQTT and AMQP. Can anybody tell me who between MQTT and AMQP consumes less battery and by what percentage.

Regards,

Vivek

[Vivek Rangi]

[Vivek Rangi]

Here I am talking about MQTT and AMQP clients

On Thursday, December 1, 2016 at 10:16:05 AM UTC+5:30, Vivek Rangi wrote:

[Paul Fremantle]

I haven't seen any data on this, but it would clearly be MQTT. There is a comparison of HTTPS and MQTT available http://stephendnicholas.com/posts/power-profiling-mqtt-vs-https.

Paul

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Paul Fremantle

Doctoral Researcher, University of Portsmouth, School of Computing

Visiting Scientist, Institute of the Architecture of Application Systems, Stuttgart

Visiting Lecturer, Software Engineering Programme, Oxford University

Co-Founder, WSO2
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[Vivek Rangi]

Thanks, but I have already seen the link. But I need info on which protocol consumes less power than the other.

On Thursday, December 1, 2016 at 11:51:31 AM UTC+5:30, Paul Fremantle wrote:

I haven't seen any data on this, but it would clearly be MQTT. There is a comparison of HTTPS and MQTT available http://stephendnicholas.com/posts/power-profiling-mqtt-vs-https.

Paul

On 1 December 2016 at 04:48, Vivek Rangi <rangi...@gmail.com> wrote:

Here I am talking about MQTT and AMQP clients

On Thursday, December 1, 2016 at 10:16:05 AM UTC+5:30, Vivek Rangi wrote:

Hi!

    I am preparing a comparison chart between MQTT and AMQP. Can anybody tell me who between MQTT and AMQP consumes less battery and by what percentage.

Regards,

Vivek

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To learn more about MQTT please visit http://mqtt.org
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[Paul Fremantle]

Vivek

I understood. What I'm explaining is that:

1) No-one truly knows because there is no published study.

2) You can obviously *guess* that MQTT will require less power, because it is (a) less complex using less CPU (e.g. no-one has  fit AMQP onto an 8-bit controller), (b) it uses less bandwidth, hence less power.

In other words, I haven't seen any data on this, but it would clearly be MQTT.

Paul

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[Francis Brosnan Blázquez]

Hi,

It is hard to tell but using TLS/SSL (which is far more expensive than using plain connections),
the kind of the device's connection (how much power it consumes every time it is used) and, of course, how
frequent the connection is used.

None of these have to do with the protocol (may it be mqtt or amqp) so the protocol, in essence,
is not a critical factor in terms of cpu and power consumption,

Best Regards,

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[Tomoaki Yamaguchi]

I guess LoRaWan + MQTT-SN might be best.

2016/12/01 16:53 "Francis Brosnan Blázquez" <francis...@aspl.es>:

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[Stefano Costa]

On 01/12/2016 08:41, Paul Fremantle wrote:

Vivek

I understood. What I'm explaining is that:

1) No-one truly knows because there is no published study.

2) You can obviously *guess* that MQTT will require less power, because it is (a) less complex using less CPU (e.g. no-one has  fit AMQP onto an 8-bit controller), (b) it uses less bandwidth, hence less power.

In other words, I haven't seen any data on this, but it would clearly be MQTT.

I would also add that sometimes protocol complexity by itself is not a measure of efficiency in terms of energy consumption. Look, I'm writing "energy" and not "power" meaning that you (the architect of the application) should take into consideration the use mode of the communication channel you're trying to establish. Sending a small amount of data over a safe and consistent protocol once per hour can be far more efficient than continuously querying for bits of information using a very simple protocol that does not offer reliability features.

This is also why a logical "push" protocol model like MQTT most of the times is to be preferred in battery operated equipments if compared to "pull" (query and answer) protocols. Again: heavily depends on the use mode. We're assuming no one is looking for an energy efficient protocol when continuously sending gigabytes of data over MQTT (it happens: firmware updates...).

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