add process-compose demo

[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]

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	2024-07-19 07:47:53.253119502 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	e6685648e63ab510b49d2ce632c570d2ef53f44f3cbdf82ed553906c	4081
νCommit	fce3b967fb72f4a3be8dfa30defe413258ff453e5d32d6752d83f9cf	2060
νHead	10a116037de398d6b0721152336d602f0ea653eb3dfe540d5da63fe4	9367
μHead	4f93fdfeda690e005d3f5a180208edd3f65ddd0892466ad7f4dd678b*	4236

• 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	4815	5.71	2.25	0.42
2	5018	7.09	2.80	0.45
3	5224	8.45	3.34	0.47
5	5623	11.31	4.47	0.52
10	6632	18.30	7.24	0.64
58	16279	84.19	33.30	1.79

Cost of Commit Transaction

This is using ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	559	9.25	3.68	0.28
2	749	11.94	4.93	0.32
3	938	14.70	6.20	0.36
5	1303	20.44	8.83	0.44
10	2250	36.05	15.86	0.65
26	5242	98.14	42.75	1.48

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	544	14.13	5.69	0.33
2	114	658	22.76	9.24	0.43
3	170	764	32.90	13.48	0.55
4	227	878	43.54	17.99	0.67
5	283	984	57.55	23.88	0.83
6	341	1095	72.35	30.16	1.00
7	394	1205	86.76	36.44	1.17

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	604	7.99	4.49	0.27
2	754	8.66	5.55	0.29
3	859	9.36	6.60	0.31
5	1294	11.53	9.43	0.37
10	2038	16.11	15.64	0.48
50	7902	47.47	61.31	1.32

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	639	8.40	4.66	0.28
2	715	8.70	5.38	0.29
3	895	9.81	6.77	0.32
5	1220	11.68	9.27	0.37
10	1920	15.31	14.79	0.47
50	8025	51.00	63.22	1.37

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	4715	16.52	7.22	0.54
2	4874	28.04	12.40	0.68
3	4940	37.54	16.48	0.79
4	5160	57.05	25.38	1.02
5	5250	75.41	33.48	1.23
6	5412	97.30	43.24	1.49

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	4650	7.63	3.20	0.44
5	1	57	4684	8.55	3.82	0.45
5	5	284	4819	13.41	6.80	0.52
5	10	569	4990	19.20	10.39	0.60
5	20	1140	5331	29.99	17.24	0.75
5	30	1707	5670	41.37	24.35	0.91
5	40	2274	6007	51.97	31.12	1.06
5	50	2843	6345	63.96	38.49	1.22
5	82	4672	7439	99.23	60.77	1.72

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 2024-07-19 07:50:15.153151201 UTC

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	4.635645632
P99	9.611620739999918ms
P95	6.388050549999999ms
P50	4.3608975ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	22.845562188
P99	56.73804187000005ms
P95	31.144931499999995ms
P50	20.7752785ms
Number of Invalid txs	0

[github-actions]

Test Results

437 tests  ±0   425 ✅ ±0   15m 49s ⏱️ +23s
143 suites ±0    12 💤 ±0 
  5 files   ±0     0 ❌ ±0 

Results for commit a7d189f. ± Comparison against base commit 209de1d.