DONT MERGE: Plutus tx inline conservative optimization

[ch1bo]

According to IntersectMBO/plutus#5460 this should be enough to ensure traces are not simplified away, but still allow for some simplifications and potential smaller / faster code.

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• CHANGELOG updated
• Documentation update not needed
• Haddocks update not needed
• No new TODOs introduced

[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	2024-05-23 12:10:29.323307767 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	e3f5b84be0f577c06dce9f6d1443cd81242bb46befe05418c6d105cd	3838
νCommit	ecb1dda1e2e7575b01ad665ab360426826ddfe61b596fd2dad483072	1743
νHead	1d80640c56a121b61f9cc5dfffa8178b45521568d5075337eeca2efa	8681
μHead	4205243a3bccdb144bab86f95b46cee42f41e2f5838f3f81e55d1d80*	3855

• 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	4434	9.66	3.69	0.45
2	4637	11.87	4.54	0.48
3	4836	14.34	5.50	0.52
5	5245	18.31	7.01	0.58
10	6250	28.79	11.02	0.74
43	12879	98.91	37.91	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	9.77	3.89	0.28
2	749	13.21	5.43	0.33
3	933	16.78	7.01	0.38
5	1304	24.30	10.31	0.48
10	2238	45.35	19.39	0.75
20	4114	97.11	41.10	1.41

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	544	20.68	8.10	0.40
2	113	654	31.66	12.54	0.53
3	171	764	44.25	17.71	0.67
4	226	878	61.78	24.82	0.87
5	282	984	74.52	30.26	1.01
6	338	1095	88.17	36.16	1.17

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	591	16.71	7.67	0.37
2	745	17.97	8.94	0.39
3	933	19.72	10.56	0.43
5	1215	22.40	13.15	0.48
10	2086	30.69	20.98	0.64
50	8156	89.93	77.36	1.79

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	614	20.30	8.97	0.41
2	786	21.89	10.37	0.44
3	895	23.32	11.66	0.46
5	1110	25.94	14.02	0.51
10	1811	33.90	21.07	0.66
47	7532	97.61	76.93	1.82

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	4226	14.20	5.90	0.49
2	4408	25.67	11.06	0.63
3	4597	43.33	19.08	0.84
4	4819	61.37	27.13	1.05
5	4881	73.91	32.61	1.20
6	4988	99.23	43.96	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	4269	7.52	3.17	0.42
5	1	57	4304	8.41	3.78	0.43
5	5	285	4440	13.03	6.65	0.50
5	10	569	4609	18.83	10.26	0.58
5	20	1137	4947	29.34	17.02	0.73
5	30	1707	5288	40.36	23.99	0.88
5	40	2274	5625	51.60	31.06	1.04
5	50	2846	5968	62.42	37.96	1.19
5	83	4720	7082	98.65	60.94	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 2024-05-23 12:14:35.024994695 UTC

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	3.962116282
P99	9.817799179999987ms
P95	4.755882149999999ms
P50	3.7236314999999998ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	21.044905753
P99	111.46006578000004ms
P95	29.751192199999995ms
P50	18.5038995ms
Number of Invalid txs	0

[github-actions]

Test Results

427 tests  ±0   419 ✅ ±0   15m 33s ⏱️ +39s
139 suites ±0     8 💤 ±0 
  2 files   ±0     0 ❌ ±0 

Results for commit 821d541. ± Comparison against base commit 13e596f.

♻️ This comment has been updated with latest results.

[ch1bo]

Seems like the script sizes indeed became smaller, but the memory costs are higher. Maybe not desirable to do this!