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	2025-02-19 04:26:51.252776547 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	c8a101a5c8ac4816b0dceb59ce31fc2258e387de828f02961d2f2045	2652
νCommit	61458bc2f297fff3cc5df6ac7ab57cefd87763b0b7bd722146a1035c	685
νHead	0e35115a2c7c13c68ecd8d74e4987c04d4539e337643be20bb3274bd	14756
μHead	57166715eadb8d3135964325c016eea546c21e1c0aae974ca67df9a5*	5541
νDeposit	ae01dade3a9c346d5c93ae3ce339412b90a0b8f83f94ec6baa24e30c	1102

• 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	6091	11.02	3.43	0.53
2	6296	13.22	4.10	0.56
3	6495	15.59	4.83	0.60
5	6898	19.98	6.17	0.66
10	7903	31.40	9.68	0.82
40	13936	98.61	30.29	1.78

Commit transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	563	2.44	1.16	0.20
2	742	3.38	1.73	0.22
3	919	4.36	2.33	0.24
5	1281	6.41	3.60	0.28
10	2178	12.13	7.25	0.40
54	10061	98.61	68.52	1.88

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	525	26.47	7.60	0.44
2	114	636	33.84	9.73	0.52
3	170	747	45.62	12.93	0.64
4	227	858	54.95	15.54	0.74
5	282	969	60.35	17.25	0.80
6	339	1081	70.52	20.02	0.91
7	394	1196	90.56	25.25	1.12
9	505	1414	92.71	26.65	1.15

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	1801	25.03	8.22	0.49
2	1924	26.77	9.41	0.52
3	2078	28.65	10.65	0.55
5	2348	31.88	12.99	0.60
10	3237	44.14	20.40	0.80
38	7368	97.80	56.27	1.67

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	589	23.99	7.61	0.42
2	813	26.74	9.03	0.47
3	819	25.39	9.30	0.46
5	1211	31.43	12.34	0.55
10	1963	41.08	18.30	0.70
39	6276	99.85	53.85	1.62

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	682	29.15	9.20	0.48
2	839	30.95	10.43	0.51
3	987	35.53	12.50	0.57
5	1286	39.86	15.25	0.64
10	2019	47.78	21.18	0.78
34	5759	99.05	54.04	1.59

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	671	35.95	11.00	0.55
2	773	37.41	12.00	0.57
3	949	40.36	13.65	0.62
5	1250	45.17	16.52	0.69
10	2015	57.58	23.82	0.88
27	4562	98.40	47.96	1.49

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	5996	28.32	9.34	0.71
2	6109	37.44	12.34	0.81
3	6164	45.38	14.92	0.90
4	6331	55.72	18.36	1.01
5	6480	63.12	20.78	1.10
6	6525	71.08	23.34	1.18
7	6874	85.28	28.19	1.34
8	7026	98.02	32.47	1.49

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 ₳
10	0	0	6091	19.66	6.46	0.62
10	5	285	6261	30.05	10.51	0.74
10	20	1138	6770	62.72	23.14	1.12
10	30	1706	7109	82.19	30.78	1.35
10	37	2109	7351	99.40	37.34	1.55