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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	2024-09-01 16:57:31.272683233 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	bd9fad235c871fb7f837c767593018a84be3083ff80f9dab5f1c55f9	10194
μHead	c8038945816586c4d38926ee63bba67821eb863794220ebbd0bf79ee*	4607

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	5186	5.75	2.27	0.44
2	5390	7.09	2.80	0.46
3	5588	8.37	3.30	0.49
5	5998	11.22	4.43	0.54
10	6998	18.20	7.20	0.66
56	16244	81.52	32.24	1.76

`Commit` transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	559	10.52	4.15	0.29
2	749	13.86	5.65	0.34
3	933	17.33	7.20	0.38
5	1313	24.65	10.44	0.48
10	2242	45.22	19.36	0.75
20	4119	95.99	40.76	1.40

`CollectCom` transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	549	21.46	8.41	0.41
2	114	659	32.95	13.05	0.54
3	170	769	47.53	18.98	0.70
4	227	879	60.25	24.30	0.85
5	281	989	76.72	31.15	1.04
6	340	1100	91.97	37.66	1.21

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	638	17.71	7.80	0.38
2	786	19.11	9.08	0.40
3	891	20.76	10.44	0.43
5	1370	27.35	14.40	0.54
10	1909	32.24	20.01	0.64
47	7695	94.69	71.15	1.77

`Close` transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	645	21.02	9.41	0.42
2	847	22.86	11.16	0.45
3	969	24.18	12.48	0.48
5	1215	27.31	15.36	0.54
10	2078	36.22	23.70	0.71
50	7784	97.58	82.31	1.87

`Contest` transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	666	27.18	11.67	0.48
2	819	28.94	13.19	0.52
3	941	30.75	14.71	0.55
5	1278	34.87	18.30	0.62
10	1988	43.98	25.99	0.78
40	6345	99.71	73.75	1.77

`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	5052	17.32	7.53	0.57
2	5145	25.06	10.84	0.66
3	5341	42.48	18.80	0.86
4	5406	56.62	25.04	1.03
5	5604	72.14	32.02	1.21
6	5729	97.28	43.34	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	5022	7.84	3.32	0.46
5	1	57	5057	9.08	4.08	0.48
5	5	285	5192	13.21	6.75	0.53
5	10	569	5362	19.35	10.51	0.62
5	20	1139	5701	30.58	17.60	0.78
5	30	1709	6044	41.90	24.72	0.93
5	40	2276	6380	53.03	31.76	1.09
5	50	2845	6719	64.37	38.89	1.25
5	81	4610	7771	99.53	61.01	1.74

End-to-end benchmark results

This page is intended to collect the latest end-to-end benchmark results produced by Hydra's continuous integration (CI) system from the latest master code.

Please note that these results are approximate as they are currently produced from limited cloud VMs and not controlled hardware. Rather than focusing on the absolute results, the emphasis should be on relative results, such as how the timings for a scenario evolve as the code changes.

Generated at 2024-09-01 17:00:43.363824283 UTC

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	1.696075627
P99	2.329614239999999ms
P95	2.0156206ms
P50	1.6270775ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	39.949834839
P99	211.11770883000003ms
P95	118.09518139999999ms
P50	18.088697ms
Number of Invalid txs	0

cardano-scaling / hydra