Constant memory adr

[v0d1ch]

fix #1717

---

• 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	-
μHead	-
νDeposit	-

Init transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
44	-	-	-	-

Commit transaction costs

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
54	-	-	-	-

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-	-
2	-	-	-	-	-
3	-	-	-	-	-
4	-	-	-	-	-
5	-	-	-	-	-
6	-	-	-	-	-
7	-	-	-	-	-
8	-	-	-	-	-
9	-	-	-	-	-
10	-	-	-	-	-

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	+0.39	+0.09	-
2	-	-	-	-
3	-	$${\color{green}-0.38}$$	$${\color{green}-0.09}$$	-
5	-	+0.39	+0.09	-
10	-	-	-	-
43	-	+0.39	+0.09	+0.01

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
45	-	-	-	-

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
41	-	-	-	-

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	-	-	-	-
2	-	-	-	-
3	-	-	-	-
5	-	-	-	-
10	-	-	-	-
33	-	-	-	-

FanOut transaction costs

UTxO, Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
(0, 10)	-	-	-	-	-
(1, 10)	-	-	-	-	-
(5, 10)	-	-	-	-	-
(10, 10)	-	-	-	-	-
(20, 10)	-	-	-	-	-
(40, 10)	-	-	-	-	-
(41, 10)	-	-	-	-	-

[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	2025-01-27 16:15:09.864579318 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	c8a101a5c8ac4816b0dceb59ce31fc2258e387de828f02961d2f2045	2652
νCommit	61458bc2f297fff3cc5df6ac7ab57cefd87763b0b7bd722146a1035c	685
νHead	5350e9d521552ebfd9e846fd70c3b801f716fc14296134ec0fb71e97	14492
μHead	6b49dc4e571207d615dba01996548cb610b0caa85c30423d169d0091*	5612
νDeposit	ae01dade3a9c346d5c93ae3ce339412b90a0b8f83f94ec6baa24e30c	1102

• 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	6164	10.24	3.26	0.53
2	6365	12.04	3.82	0.56
3	6564	14.16	4.49	0.59
5	6966	18.36	5.81	0.65
10	7975	28.42	8.97	0.80
44	14810	98.04	30.85	1.82

Commit transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	561	2.44	1.16	0.20
2	743	3.38	1.73	0.22
3	916	4.36	2.33	0.24
5	1273	6.41	3.60	0.28
10	2171	12.13	7.25	0.40
54	10051	98.61	68.52	1.88

CollectCom transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	529	25.00	7.26	0.43
2	114	636	31.89	9.29	0.50
3	168	747	39.44	11.48	0.58
4	227	862	49.25	14.27	0.69
5	282	969	57.12	16.52	0.77
6	338	1081	63.48	18.44	0.84
7	395	1192	74.15	21.52	0.96
8	448	1303	93.37	26.43	1.15
9	507	1414	95.33	27.25	1.18

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	1785	23.74	7.93	0.48
2	1996	26.26	9.47	0.52
3	2069	26.52	10.16	0.53
5	2481	31.78	13.29	0.61
10	3259	42.32	20.14	0.78
42	7969	97.73	59.84	1.72

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	597	22.44	7.26	0.41
2	729	24.13	8.39	0.44
3	874	24.89	9.25	0.46
5	1348	32.03	12.60	0.56
10	1940	38.41	17.70	0.67
44	6910	99.96	57.61	1.68

Close transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	681	27.03	8.73	0.46
2	786	30.35	10.36	0.50
3	963	30.34	11.11	0.52
5	1337	34.58	13.99	0.59
10	2117	46.84	21.38	0.78
40	6474	98.45	58.50	1.65

Contest transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	696	33.35	10.43	0.53
2	812	35.30	11.68	0.56
3	980	37.86	13.23	0.59
5	1221	41.09	15.47	0.65
10	2021	52.49	22.61	0.83
31	5319	98.63	51.63	1.55

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	6070	26.04	8.82	0.69
2	6169	34.53	11.68	0.78
3	6329	43.96	14.92	0.89
4	6376	48.70	16.44	0.94
5	6546	60.57	20.47	1.08
6	6664	67.33	22.71	1.15
7	6865	80.50	27.35	1.30
8	6980	89.55	30.28	1.40
9	7023	91.15	30.73	1.42

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	6163	18.76	6.42	0.62
10	1	57	6196	20.72	7.21	0.64
10	5	285	6332	27.45	9.95	0.72
10	10	570	6502	38.34	14.29	0.85
10	20	1138	6841	57.20	21.90	1.07
10	30	1710	7184	77.10	29.90	1.30
10	40	2271	7515	96.02	37.53	1.53
10	41	2334	7555	99.08	38.72	1.56

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 2025-01-27 16:18:07.656537951 UTC

Baseline Scenario

Number of nodes	1
Number of txs	300
Avg. Confirmation Time (ms)	4.506678120
P99	12.341764009999997ms
P95	6.084641700000007ms
P50	4.1258455ms
Number of Invalid txs	0

Three local nodes

Number of nodes	3
Number of txs	900
Avg. Confirmation Time (ms)	22.903170962
P99	113.71039999999999ms
P95	30.050074949999996ms
P50	20.704182000000003ms
Number of Invalid txs	0

[github-actions]

Test Results

  5 files  ±0  165 suites  ±0   29m 13s ⏱️ -22s
563 tests ±0  561 ✅ ±0  2 💤 ±0  0 ❌ ±0 
565 runs  ±0  563 ✅ ±0  2 💤 ±0  0 ❌ ±0 

Results for commit 2255724. ± Comparison against base commit f339ed1.

♻️ This comment has been updated with latest results.

[noonio]

Looks great; I think add the couple of links and we can merge and start working on this!