versioning hydra tx observations

[ffakenz]

This PR parametrizes hydra-chain-observer with a SerializedScriptRegistry, which encapsulates the serialized scripts for Hydra contracts.

It also introduces utility functions for parsing SerializedScripts from Plutus cborHex and Aiken compiledCode.

This refactor enables the hydra-chain-observer to run using Hydra scripts from different releases.

---

• CHANGELOG updated or not needed
• Documentation updated or not needed
• Haddocks updated or not needed
• No new TODOs introduced or explained herafter

[github-actions]

Transaction cost differences

No cost or size differences found

[github-actions]

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	2024-12-31 11:55:08.041439605 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	00a6ddbc130ab92f5b7cb8d1ccd8d79eca5bfe25f6843c07b62841f0	2667
νCommit	3e5a776bcee213e3dfd15806952a10ac5590e3e97d09d62eb99266b2	690
νHead	5350e9d521552ebfd9e846fd70c3b801f716fc14296134ec0fb71e97	14495
μHead	482c3ce15cde05bc905b915ccfa2546e500be1c5d722389026c37aa3*	5615
νDeposit	de09cec5f84eedaf64186cb52ba4ee6e74e6fc368af25b90d457f352	1118

• 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	6200	10.76	3.47	0.54
2	6401	12.28	3.91	0.56
3	6601	14.43	4.59	0.59
5	7004	18.67	5.93	0.65
10	8014	28.42	8.97	0.80
44	14843	98.21	30.92	1.82

Commit transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	556	2.45	1.17	0.20
2	743	3.40	1.74	0.22
3	920	4.39	2.34	0.24
5	1279	6.46	3.61	0.28
10	2173	12.24	7.28	0.40
54	10058	99.20	68.72	1.89

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	560	25.00	7.26	0.43
2	114	671	31.93	9.30	0.50
3	170	782	42.32	12.19	0.61
4	225	893	52.34	15.01	0.72
5	284	1004	58.97	16.97	0.79
6	338	1116	73.72	20.93	0.95
7	394	1227	77.31	22.14	0.99
8	449	1338	82.77	24.00	1.05
9	506	1449	95.20	27.33	1.18

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	1847	24.05	8.01	0.48
2	2006	25.26	9.09	0.51
3	2169	27.95	10.65	0.55
5	2499	31.73	13.26	0.61
10	3025	36.66	18.05	0.71
43	8050	97.87	60.54	1.73

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	636	22.68	7.31	0.41
2	764	23.89	8.33	0.44
3	911	24.88	9.25	0.46
5	1208	28.83	11.69	0.52
10	2099	40.24	18.23	0.70
43	6837	98.55	56.54	1.65

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	678	28.60	9.15	0.48
2	842	30.35	10.37	0.51
3	980	30.18	11.06	0.52
5	1271	36.16	14.27	0.60
10	2142	44.73	20.79	0.76
39	6668	97.63	58.07	1.65

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	734	33.35	10.43	0.53
2	866	35.29	11.69	0.56
3	997	37.22	12.95	0.59
5	1334	42.42	16.07	0.67
10	2273	54.16	23.48	0.86
31	5147	97.76	51.20	1.54

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	6107	26.09	8.83	0.69
2	6160	31.52	10.60	0.75
3	6390	44.08	14.97	0.90
4	6472	53.18	18.01	0.99
5	6505	57.58	19.38	1.04
6	6626	66.18	22.32	1.14
7	6893	76.63	25.93	1.26
8	6990	86.36	29.25	1.37
9	7241	98.93	33.71	1.51

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	5	285	6367	27.82	10.09	0.73
10	20	1140	6877	57.20	21.90	1.07
10	40	2278	7558	95.81	37.45	1.53
10	42	2392	7626	99.94	39.10	1.58

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 2024-12-31 11:58:38.639134614 UTC

Baseline Scenario

Number of nodes	1
Number of txs	300
Avg. Confirmation Time (ms)	4.780763220
P99	8.935218309999991ms
P95	6.400799800000001ms
P50	4.5932355000000005ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	900
Avg. Confirmation Time (ms)	24.789858453
P99	116.76123311999999ms
P95	29.83973085ms
P50	21.230594500000002ms
Number of Invalid txs	0

[github-actions]

Test Results

  5 files  ±0  165 suites  ±0   28m 30s ⏱️ - 2m 9s
563 tests ±0  557 ✅ ±0  6 💤 ±0  0 ❌ ±0 
565 runs  ±0  559 ✅ ±0  6 💤 ±0  0 ❌ ±0 

Results for commit 99f3406. ± Comparison against base commit 3cec2ff.

♻️ This comment has been updated with latest results.