Replace ToJSON/FromJSON Tx with cbor encoding

[locallycompact]

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

[github-actions]

Test Results

405 tests   398 ✅  15m 42s ⏱️
136 suites    7 💤
  5 files      0 ❌

Results for commit a682340.

♻️ This comment has been updated with latest results.

[github-actions]

Transactions 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	2024-01-24 13:55:42.178509682 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	985245919fcc6c0c5cd116023cd2c947c43e80dcbb5075fe12433fbb	4072
νCommit	7cb20fa71eb4c563ca283566ebe0aa65859d96c3f8cba35c52c181fd	2043
νHead	7a36661f5c15e9f1783aeaab890812c59b7286cbbc6de762d3110772	8816
μHead	8b111ac12274e46314769295a1c5dcab1d260096fc469fd698065463*	3851

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

Cost of Init Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4374	10.25	3.95	0.45
2	4575	12.76	4.92	0.49
3	4776	14.79	5.67	0.52
5	5183	19.22	7.35	0.59
10	6182	30.41	11.60	0.75
41	12418	99.02	37.59	1.77

Cost of Commit Transaction

This is using ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	534	11.37	4.44	0.30
2	721	15.04	6.07	0.35
3	909	18.85	7.75	0.40
5	1279	26.90	11.27	0.51
10	2222	49.55	20.97	0.80
19	3905	99.43	41.75	1.43

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	480	21.12	8.27	0.40
2	113	594	33.21	13.10	0.54
3	169	700	45.16	18.01	0.68
4	226	810	64.38	25.66	0.89
5	282	920	79.55	31.97	1.06
6	339	1031	92.92	37.70	1.22

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	491	16.23	7.33	0.36
2	633	16.64	7.29	0.37
3	913	20.26	10.95	0.43
5	1279	23.72	14.18	0.50
10	2201	32.21	22.07	0.67
50	8878	97.84	83.35	1.93

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	586	20.23	8.97	0.40
2	743	22.30	10.69	0.44
3	981	24.32	12.46	0.48
5	1350	28.24	15.84	0.55
10	2129	37.46	23.80	0.72
43	7889	99.82	77.75	1.86

Cost of Abort Transaction

Some variation because of random mixture of still initial and already committed outputs.

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4316	18.89	8.13	0.55
2	4471	31.78	13.85	0.70
3	4654	47.48	20.84	0.89
4	4837	66.47	29.25	1.11
5	4985	86.98	38.40	1.35

Cost of FanOut Transaction

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	4205	8.26	3.46	0.43
5	1	57	4239	9.36	4.17	0.44
5	5	285	4375	14.19	7.18	0.51
5	10	569	4544	20.55	11.08	0.60
5	20	1137	4882	32.64	18.62	0.76
5	30	1709	5226	45.03	26.28	0.93
5	40	2278	5565	57.46	33.97	1.10
5	50	2845	5903	69.14	41.34	1.27
5	74	4207	6713	99.13	59.87	1.68

End-To-End Benchmark Results

This page is intended to collect the latest end-to-end benchmarks results produced by Hydra's Continuous Integration system from the latest master code.

Please take those results with a grain of salt as they are currently produced from very limited cloud VMs and not controlled hardware. Instead of focusing on the absolute results, the emphasis should be on relative results, eg. how the timings for a scenario evolve as the code changes.

Generated at 2024-01-24 13:58:47.039124335 UTC

Baseline Scenario

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	20.689288124
P99	49.04382955000003ms
P95	29.412308149999994ms
P50	18.582133ms
Number of Invalid txs	0

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	3.547279257
P99	4.6828317599999965ms
P95	4.1265509ms
P50	3.4611785ms
Number of Invalid txs	0

[ch1bo]

Sorry for the late review.

While this roundtrips, I do think that this currently breaks our integration with cardano-cli (see tutorial) and is missing some updates to documentation + some testing.

[ch1bo]

Several things we still could do, but this will fulfill the requirements of changing the hydra-node.

As we merge this, all clients must be updated.

[ch1bo]

Should: bump the hydra-node binary (in the cabal file) to this version.