Transaction costs

Sizes and execution budgets for Hydra protocol transactions. Note that unlisted parameters are currently using arbitrary values and results are not fully deterministic and comparable to previous runs.

Metadata
Generated at	2025-01-07 13:45:59.801570551 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	2fac819a1f4f14e29639d1414220d2a18b6abd6b8e444d88d0dda8ff	3799
νCommit	2043a9f1a685bcf491413a5f139ee42e335157c8c6bc8d9e4018669d	1743
νHead	2ee477c60839936be49a50030690865b5bed4db8cd2f05bf255ac680	10068
μHead	a1610f6e64843161f4a88229c0286176f5325de3e2f773eec2b1d818*	4508
νDeposit	c2117fd9ebdee3e96b81fd67ff7092d638926415c10f1f7e5a267ad0	2791

• The minting policy hash is only usable for comparison. As the script is parameterized, the actual script is unique per head.

Init transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	5094	5.81	2.30	0.44
2	5298	7.31	2.90	0.46
3	5499	8.37	3.30	0.48
5	5903	11.12	4.39	0.53
10	6906	18.21	7.20	0.65
57	16356	82.91	32.79	1.78

Commit transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	569	10.52	4.15	0.29
2	754	13.86	5.65	0.34
3	937	17.33	7.20	0.38
5	1322	24.65	10.44	0.48
10	2263	45.22	19.36	0.75
20	4122	95.99	40.76	1.40

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	564	21.46	8.41	0.41
2	114	671	33.03	13.08	0.54
3	171	782	47.27	18.87	0.70
4	227	893	61.29	24.68	0.86
5	280	1004	79.26	32.08	1.07
6	337	1116	88.71	36.45	1.18

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	633	17.91	7.86	0.38
2	775	19.34	9.16	0.41
3	1018	22.73	11.18	0.46
5	1292	24.97	13.53	0.51
10	2067	34.55	20.87	0.67
50	8220	99.56	75.26	1.86

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	640	20.07	9.01	0.41
2	812	21.53	10.43	0.44
3	981	23.30	12.12	0.47
5	1309	26.52	15.23	0.53
10	1897	33.52	21.92	0.66
49	7720	96.20	81.34	1.85

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	697	25.89	11.15	0.47
2	894	28.11	13.01	0.51
3	969	29.49	14.20	0.53
5	1204	32.99	17.17	0.59
10	2103	42.96	25.84	0.78
39	6331	98.13	72.73	1.75

Abort transaction costs

There is some variation due to the random mixture of initial and already committed outputs.

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4967	17.43	7.58	0.56
2	5053	27.51	11.98	0.68
3	5195	37.68	16.48	0.80
4	5326	56.90	25.15	1.03
5	5588	76.67	34.18	1.26
6	5683	97.19	43.30	1.50

FanOut transaction costs

Involves spending head output and burning head tokens. Uses ada-only UTxO for better comparability.

Parties	UTxO	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
5	0	0	4934	7.50	3.17	0.45
5	1	57	4969	9.02	4.05	0.47
5	5	285	5104	13.35	6.81	0.53
5	10	569	5274	18.90	10.32	0.61
5	20	1139	5613	30.33	17.48	0.77
5	30	1707	5953	41.45	24.52	0.92
5	40	2274	6291	52.98	31.73	1.08
5	50	2846	6632	64.39	38.90	1.24
5	81	4610	7683	99.87	61.16	1.74