Add tx metadata to label Hydra transactions

[ch1bo]

This is only for informational purposes and helps with debugging by identifying Hydra protocol transactions more quickly.

For example with renderTx:

---

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

[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	2024-02-16 16:04:01.383535246 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	4433	10.25	3.95	0.46
2	4634	12.47	4.79	0.49
3	4835	14.68	5.63	0.52
5	5237	19.12	7.31	0.59
10	6240	30.30	11.55	0.75
41	12476	99.11	37.63	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	594	11.37	4.44	0.30
2	782	15.04	6.07	0.35
3	972	18.85	7.75	0.40
5	1345	26.90	11.27	0.51
10	2275	49.55	20.97	0.80
19	3967	99.43	41.75	1.43

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	56	543	21.07	8.25	0.40
2	114	658	34.16	13.45	0.55
3	170	764	45.00	17.95	0.68
4	226	874	59.00	23.71	0.84
5	282	984	74.67	30.18	1.01
6	340	1095	91.72	37.28	1.21

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	595	16.68	7.67	0.37
2	731	18.04	8.96	0.39
3	724	17.75	7.78	0.38
5	1217	23.03	13.54	0.49
10	1883	29.76	20.04	0.62
50	7805	88.98	75.74	1.76

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	636	20.22	8.96	0.41
2	757	21.85	10.34	0.43
3	889	23.42	11.71	0.46
5	1203	26.77	14.70	0.53
10	2094	36.56	23.02	0.70
46	7596	98.96	77.25	1.84

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	4222	15.19	6.26	0.50
2	4420	30.84	13.37	0.69
3	4578	46.46	20.31	0.87
4	4774	64.36	28.30	1.08
5	4911	85.46	37.65	1.33

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	4266	7.84	3.28	0.42
5	1	57	4300	8.44	3.78	0.43
5	5	284	4435	13.77	7.00	0.51
5	10	571	4606	19.92	10.81	0.59
5	20	1137	4942	32.22	18.44	0.76
5	30	1710	5287	44.52	26.07	0.93
5	40	2277	5625	56.83	33.70	1.10
5	50	2849	5967	68.93	41.25	1.27
5	74	4208	6773	98.92	59.78	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 2024-02-16 16:07:27.039837338 UTC

Baseline Scenario

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	22.369150979
P99	115.96961958ms
P95	31.527943149999967ms
P50	19.500669000000002ms
Number of Invalid txs	0

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	4.032315389
P99	7.624928829999973ms
P95	4.915809049999998ms
P50	3.8861600000000003ms
Number of Invalid txs	0

[github-actions]

Test Results

415 tests  ±0   408 ✅ ±0   13m 13s ⏱️ +37s
139 suites ±0     7 💤 ±0 
  5 files   ±0     0 ❌ ±0 

Results for commit e8fb5fe. ± Comparison against base commit a19389f.

♻️ This comment has been updated with latest results.