WIP: Increment validator and corresponding mutations

[v0d1ch]

---

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

[github-actions]

Transaction cost differences

Script summary

Name	Size (Bytes)
νInitial	-
νCommit	-
νHead	+1024
μHead	-
νDeposit	$${\color{green}-1978.00}$$

Init transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
57	-	-	-	-

Commit transaction costs

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
19	-	-	-	-

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	+0.11	+0.03	-
2	-	-	+0.28	+0.09	+0.01
3	-	-	+0.43	+0.14	+0.01
4	-	-	+4.4	+1.59	+0.05
5	-	-	+0.17	+0.01	-
6	-	-	$${\color{green}-2.66}$$	$${\color{green}-1.01}$$	$${\color{green}-0.03}$$
7	-	-	$${\color{green}-7.08}$$	$${\color{green}-2.61}$$	$${\color{green}-0.07}$$
8	-	-	$${\color{green}-8.16}$$	$${\color{green}-3.06}$$	$${\color{green}-0.09}$$
9	-	-	+2.84	+1.0	+0.03

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	+1180	1.33	0.88	0.07
2	+1148	0.51	0.68	0.06
3	+1121	0.17	0.66	0.06
5	+1306	2.77	2.2	0.1
10	+1121	0.63	2.13	0.07
50	+1122	0.28	7.88	0.11

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	+9.0	$${\color{green}-2.07}$$	$${\color{green}-1.10}$$	$${\color{green}-0.02}$$
2	+27.0	$${\color{green}-1.27}$$	$${\color{green}-0.94}$$	$${\color{green}-0.01}$$
3	$${\color{green}-8.00}$$	$${\color{green}-1.83}$$	$${\color{green}-1.43}$$	$${\color{green}-0.03}$$
5	+57.0	$${\color{green}-2.32}$$	$${\color{green}-1.42}$$	$${\color{green}-0.03}$$
10	+77.0	$${\color{green}-1.25}$$	$${\color{green}-2.34}$$	$${\color{green}-0.03}$$

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	$${\color{green}-43.00}$$	$${\color{green}-5.86}$$	$${\color{green}-2.14}$$	$${\color{green}-0.06}$$
2	$${\color{green}-17.00}$$	$${\color{green}-6.14}$$	$${\color{green}-2.22}$$	$${\color{green}-0.07}$$
3	+103.0	$${\color{green}-5.72}$$	$${\color{green}-1.67}$$	$${\color{green}-0.05}$$
5	$${\color{green}-167.00}$$	$${\color{green}-7.89}$$	$${\color{green}-3.27}$$	$${\color{green}-0.09}$$
10	$${\color{green}-67.00}$$	$${\color{green}-8.76}$$	$${\color{green}-3.19}$$	$${\color{green}-0.09}$$

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	$${\color{green}-4280.00}$$	+11.56	+4.95	$${\color{green}-0.06}$$
2	$${\color{green}-4294.00}$$	+6.9	+3.7	$${\color{green}-0.11}$$
3	$${\color{green}-4244.00}$$	+6.79	+4.52	$${\color{green}-0.09}$$
5	$${\color{green}-4171.00}$$	$${\color{green}-5.01}$$	+1.09	$${\color{green}-0.21}$$
10	$${\color{green}-3970.00}$$	$${\color{green}-25.38}$$	$${\color{green}-3.29}$$	$${\color{green}-0.41}$$

Abort transaction costs

Parties	% max CPU	% max Mem	Min fee ₳	Tx size	UTxO	UTxO (bytes)

[github-actions]

Transaction 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	2024-11-08 11:37:50.32178 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	b512161ccb0652d7e9a0b540e4a3c808f73d6558a4bcabf374d85880	3969
νCommit	ea444d37d226e71eef73ac78d149750da977feb588900135bf9e8221	692
νHead	f3547e4acb813bd45148f4ca83517ef15e09aa3fce72b394b02af9b1	11821
μHead	506f56c2d16e45a268a379ce182a85767827ad6b723ade546b476da2*	4508
νDeposit	de09cec5f84eedaf64186cb52ba4ee6e74e6fc368af25b90d457f352	1118

• The minting policy hash is only usable for comparison. As the script is parameterized, the actual script is unique per head.

Init transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	5096	5.71	2.25	0.44
2	5298	7.17	2.84	0.46
3	5499	8.59	3.40	0.49
5	5901	11.39	4.51	0.53
10	6907	18.30	7.24	0.65
57	16355	82.85	32.77	1.78

Commit transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	569	10.84	4.26	0.29
2	754	14.31	5.80	0.34
3	940	17.92	7.39	0.39
5	1316	25.56	10.73	0.49
10	2252	47.11	19.97	0.77
19	3929	94.71	39.81	1.38

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	564	20.75	7.90	0.40
2	114	671	27.11	10.33	0.47
3	171	786	35.62	13.55	0.57
4	226	893	47.47	17.98	0.70
5	281	1004	54.49	20.68	0.78
6	339	1120	63.48	24.05	0.89
7	394	1227	73.19	27.76	1.00
8	450	1338	76.58	29.12	1.04

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	1870	20.10	9.11	0.46
2	1938	20.67	10.04	0.47
3	2182	23.21	12.25	0.52
5	2476	27.26	15.72	0.59
10	3367	36.75	24.47	0.77
49	9067	99.54	85.10	1.97

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	636	18.72	8.18	0.39
2	798	19.44	9.17	0.41
3	921	20.76	10.47	0.43
5	1385	27.34	14.60	0.54
10	1827	30.48	19.70	0.62
49	7872	96.77	75.58	1.82

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	653	20.95	9.36	0.42
2	783	22.47	10.82	0.44
3	940	23.82	12.24	0.47
5	1290	27.58	15.80	0.54
10	2100	36.21	24.08	0.71
48	7590	95.15	82.08	1.84

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	704	26.86	11.52	0.48
2	884	29.08	13.42	0.52
3	998	30.73	14.91	0.55
5	1243	34.32	18.03	0.61
10	2156	44.98	27.27	0.81
39	6243	97.96	74.11	1.75

Abort transaction costs

There is some variation due to the random mixture of initial and already committed outputs.

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4967	15.49	6.62	0.54
2	5141	22.29	9.67	0.63
3	5231	28.39	12.25	0.70
4	5474	36.50	15.93	0.80
5	5549	40.90	17.78	0.85
6	5642	48.34	21.05	0.94
7	5803	57.40	24.99	1.05
8	6005	64.78	28.36	1.14
9	5886	63.67	27.42	1.12
10	6233	79.95	34.89	1.32
11	6230	84.75	36.84	1.37
12	6605	93.96	41.05	1.50

FanOut transaction costs

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 ₳
10	0	0	5089	10.48	4.38	0.49
10	1	57	5124	10.78	4.73	0.50
10	5	285	5259	15.47	7.63	0.56
10	10	570	5429	21.51	11.33	0.64
10	20	1137	5766	33.79	18.82	0.81
10	30	1707	6108	45.08	25.89	0.97
10	40	2278	6449	56.97	33.22	1.13
10	50	2845	6786	68.28	40.29	1.29
10	76	4326	7670	99.09	59.31	1.72

End-to-end benchmark results

This page is intended to collect the latest end-to-end benchmark results produced by Hydra's continuous integration (CI) system from the latest master code.

Please note that these results are approximate as they are currently produced from limited cloud VMs and not controlled hardware. Rather than focusing on the absolute results, the emphasis should be on relative results, such as how the timings for a scenario evolve as the code changes.

Generated at 2024-11-08 11:40:11.433617107 UTC

Baseline Scenario

Number of nodes	1
Number of txs	300
Avg. Confirmation Time (ms)	4.679222803
P99	12.144181359999962ms
P95	6.474701850000001ms
P50	4.292377500000001ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	900
Avg. Confirmation Time (ms)	22.661040173
P99	40.11060869ms
P95	31.624636099999986ms
P50	21.259454499999997ms
Number of Invalid txs	0