Fix some wording in the testnet tutorial

[ch1bo]

• Inconsistent title
• The network we use is called 'preprod'
• Clarify that machine needs to be accessible from the internet (to connect to each other)
• Call unspent transaction outputs UTxO with lower case x as everywhere else in our docs

---

• CHANGELOG update not needed
• Documentation updated
• Haddocks update 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	2024-07-05 07:57:52.94842751 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	baafeb5dc37bbe6e068784746bda0a3b1bb1d034fa0c55270f6079c1	4082
νCommit	fe7af84822bcba542fae377ae7311fc5fd20152f925ccd980f73ecdc	2061
νHead	93c08c55e804d7f82ca545a01883b5fda6a6d3623cb78885625800ae	9366
μHead	5e65c73722b4bb3f0cbfcc8433e1dcdfea099eaf0a43060f1731a65b*	4237

• 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	4816	5.93	2.33	0.43
2	5020	7.19	2.82	0.45
3	5218	8.69	3.42	0.47
5	5624	11.50	4.52	0.52
10	6628	18.51	7.29	0.64
58	16276	85.81	33.83	1.80

Cost of Commit Transaction

This is using ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	556	9.69	3.82	0.28
2	745	12.48	5.10	0.32
3	937	15.33	6.40	0.36
5	1303	21.26	9.09	0.44
10	2247	37.35	16.27	0.67
25	5054	96.42	41.75	1.45

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	544	14.83	5.92	0.34
2	114	654	23.49	9.48	0.44
3	170	764	32.80	13.41	0.55
4	228	878	44.13	18.18	0.68
5	283	984	58.83	24.29	0.84
6	337	1099	74.76	30.95	1.03
7	392	1205	91.98	38.27	1.22

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	617	8.22	4.59	0.28
2	815	9.33	5.99	0.30
3	918	10.12	7.07	0.32
5	1221	11.93	9.51	0.37
10	1916	15.36	14.81	0.47
50	7969	48.16	61.87	1.34

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	647	8.56	4.72	0.28
2	796	9.78	6.13	0.31
3	995	10.42	7.21	0.33
5	1369	13.30	10.42	0.39
10	2042	16.68	15.67	0.49
50	8160	51.53	63.97	1.39

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	4710	16.96	7.35	0.55
2	4855	28.81	12.62	0.69
3	4967	41.97	18.44	0.84
4	5077	58.34	25.61	1.03
5	5205	71.91	31.49	1.19
6	5327	88.44	38.70	1.38

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	4651	8.03	3.36	0.44
5	1	57	4685	9.39	4.16	0.46
5	5	285	4822	13.37	6.74	0.52
5	10	567	4988	19.34	10.39	0.60
5	20	1136	5328	31.08	17.61	0.76
5	30	1710	5674	42.40	24.66	0.92
5	40	2276	6009	53.93	31.80	1.08
5	50	2846	6349	65.47	38.94	1.24
5	79	4492	7328	98.76	59.59	1.70

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 2024-07-05 08:00:15.044198907 UTC

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	4.273551445
P99	11.376737589999918ms
P95	5.0622517999999985ms
P50	3.781146ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	21.736967344
P99	111.00654433000007ms
P95	31.12235124999998ms
P50	19.2753625ms
Number of Invalid txs	0

[github-actions]

Test Results

437 tests  ±0   425 ✅ ±0   16m 30s ⏱️ + 1m 28s
143 suites ±0    12 💤 ±0 
  5 files   ±0     0 ❌ ±0 

Results for commit 4128cb4. ± Comparison against base commit cdcf0f0.