What is the Cycle Burn Rate capacity as of today?

GuilhermeVilhena · December 20, 2024, 3:19pm

Hi everyone. As most of you know the cycle burn rate is at a healthy 400bn/s 90 day average with a more recent ~1tn/s.

I wonder if someone at Dfinity or someone more knowledgeable could give me a very rough idea of the current max capacity? Is it currently close to capacity? Or is it 10tn/s, perhaps 100tn/s? Should a project become very popular and start to burn many trillions/s, can the network accomodate? If not what would happen?

Thank you very much in advance!

icme · December 20, 2024, 5:58pm

There is no cycle burn rate max, but there is a cycle minting rate (ICP burned to create cycles) maximum of 150 quadrillion cycles per hour (recently raised btw). I’d imagine this can be bumped again in the future as needed.

github.com

dfinity/ic/blob/9d02e69a7701a505340c410c270b19314de86a01/rs/nns/cmc/src/main.rs#L78


      
          /// The maximum memo length.
          const MAX_MEMO_LENGTH: usize = 32;
          
          /// Calls to create_canister get rejected outright if they have obviously too few cycles attached.
          /// This is the minimum amount needed for creating a canister as of October 2023.
          const CREATE_CANISTER_MIN_CYCLES: u64 = 100_000_000_000;
          
          /// Prior to 2024-12-10, we used 50e15, but legitimate users started running
          /// into this. At that time, prices had recently gone up, so we resolved to
          /// increase this by 3x.
          const DEFAULT_CYCLES_LIMIT: u128 = 150e15 as u128;
          
          thread_local! {
              static STATE: RefCell<Option<State>> = const { RefCell::new(None) };
              static LIMITER_REJECT_COUNT: Cell<u64> = const { Cell::new(0_u64) };
          }
          
          fn with_state<R>(f: impl FnOnce(&State) -> R) -> R {
              STATE.with(|cell| f(cell.borrow().as_ref().expect("cmc state not initialized")))
          }

Per subnet compute capacity is limited by each subnet’s hardware specs, but the Internet Computer can just keep adding more subnets as needed, which is where its scalability comes from.

GuilhermeVilhena · December 20, 2024, 6:41pm

Thank you for this information.

That’s really great, it’s around 40x from the current ~1tn/s without adding any subnets, which is way above a deflationary level.

The more I learn about ICP the more impressed I get, thank you all developers at Dfinity for the excellent work you do!

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What is the Cycle Burn Rate capacity as of today?

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