:wave: Can somebody explain why the heartbeat consumes so much cycles, even when the function body is empty it burns through 3_000_000 on every beat. Just a explainer what i am trying to do / how i set it up; I am trying to set up self-sustaining canisters-system where each canister can request c…

[image] icme: Since inter-canister update calls take awhile, I wonder if there’s a hacky solution in here where you can set up a canister to recursively call other canisters, and only repeat the inter-canister call once the calling canister has received a response (2+ sec). Yes, or even self-…

[image] PaulLiu: It is not heartbeat that is charging more, but try sending your canister 1 message every block, not cheap either! It’s way cheaper to do this instead of using heartbeat. I moved to running a script on a server that calls an upgrade method on my canister every 2 seconds becaus…

I have this hacky system I’m my ICDevs bounty roadmap. A dao that owns this “scheduler” public utility would be a fun project. Maybe I’ll code it up for supernova. Interesting problem and needed data: How many fire and forget intercanister calls can fit into one round of consensus? Do we need gu…

[image] rem.codes: I am trying to set up self-sustaining canisters-system where each canister can request cycles from a management canister if their current cycles are below a certain threshold. It’s sounds like what you really want is a hook into when a canister reaches the freezing threshol…

Do you have any numbers, e.g. average cost per call? At a 2s interval, it could be 1/2 of the cost, since heartbeat runs roughly every 1s.

Yeah if there was a way to trigger a function once the canister doenst have enough cycles to process the call, that would be a great addition

That is exactly what https://tipjar.rocks does. It will maintain a canister’s cycle balance to the average of last 10 days, and refill as needed.

I wish there was an analogous inspect_message for heartbeats, where a canister can choose to accept or reject a heartbeat call and not pay any cycles if it chooses to reject it… I don’t think this exists though.

Honestly I think a way to create custom heartbeats should be provided by default by the ICP, its a feature needed for many use cases and in my opinion we shouldn’t rely on a 3rd party service that has to be trusted and somehow funded to do something so basic.

Cycle burn rate heartbeat

Developers

skilesare April 16, 2022, 5:42pm 23

Or help us implament ICDevs.org - Bounty #17 - A DAO for Cycles - $10,000 - ht: cycle_dao

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Why does a canister keep consuming cycles? Developers community-consideration	19	2039	March 11, 2022
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Cycle burn rate heartbeat

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