Remove initUTxO from Ledger handle

[ch1bo]

Minor refactor.

This was not really used anywhere and is redundant to the Monoid (UTxOType tx) constraint.

---

• 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	2024-02-20 08:41:13.425746054 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	10.48	4.05	0.46
2	4633	12.57	4.83	0.49
3	4832	14.68	5.63	0.52
5	5237	19.20	7.35	0.59
10	6243	30.41	11.60	0.75
41	12475	99.12	37.64	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	781	15.04	6.07	0.35
3	968	18.85	7.75	0.40
5	1347	26.90	11.27	0.51
10	2278	49.55	20.97	0.80
19	3969	99.43	41.75	1.43

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	544	21.07	8.25	0.40
2	114	654	33.30	13.14	0.54
3	171	764	44.91	17.91	0.68
4	227	874	64.61	25.75	0.90
5	282	984	77.60	31.25	1.05
6	339	1095	96.81	39.14	1.26

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	599	16.64	7.66	0.37
2	726	18.00	8.95	0.39
3	863	19.36	10.24	0.42
5	978	20.81	9.55	0.43
10	1909	30.05	20.17	0.62
50	7993	91.03	77.16	1.79

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	621	20.23	8.96	0.41
2	765	21.77	10.31	0.43
3	847	22.93	11.34	0.45
5	1222	26.72	14.69	0.53
10	1902	35.12	21.89	0.68
47	7664	98.42	77.54	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	4310	18.85	8.11	0.55
2	4485	32.01	13.95	0.71
3	4538	45.02	19.63	0.86
4	4725	63.59	27.87	1.07
5	4682	74.21	32.29	1.19
6	4913	98.07	42.98	1.47

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	4265	7.84	3.28	0.42
5	1	57	4300	8.86	3.96	0.44
5	5	285	4435	14.07	7.13	0.51
5	10	570	4605	19.92	10.81	0.59
5	20	1138	4944	32.22	18.44	0.76
5	30	1710	5288	44.73	26.16	0.93
5	40	2283	5631	56.62	33.62	1.10
5	50	2848	5965	69.56	41.52	1.27
5	74	4210	6775	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 2024-02-20 08:42:17.035540254 UTC

Baseline Scenario

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	22.037993057
P99	104.1109925800002ms
P95	31.223011049999982ms
P50	19.7000535ms
Number of Invalid txs	0

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	4.610992321
P99	7.401887709999994ms
P95	5.913055199999999ms
P50	4.446867ms
Number of Invalid txs	0

[github-actions]

Test Results

416 tests  ±0   409 ✅ ±0   12m 54s ⏱️ -45s
139 suites ±0     7 💤 ±0 
  5 files   ±0     0 ❌ ±0 

Results for commit b3f4871. ± Comparison against base commit 39d0226.

♻️ This comment has been updated with latest results.