V1.2.3 pr5 6 by awcjack · Pull Request #7 · deltadefi-protocol/hydra

awcjack · 2026-01-22T06:08:48Z

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

This reduces the memory usage significantly (1.7 GB vs. 137 MB for the stress-test I was running) Signed-off-by: Sasha Bogicevic <sasha.bogicevic@iohk.io>

GitHub Actions runners have limited disk space (~14GB available). When building uncached Nix derivations (like our modified hydra-node), the build can exhaust disk space during compilation. This adds a cleanup step that removes unused tools before the build: - .NET SDK (~1.8GB) - Android SDK (~9GB) - GHC (~5GB) - CodeQL (~2.5GB) - Unused Docker images This frees up ~20GB of disk space, ensuring builds complete successfully.

- Add pull_request trigger for PRs targeting master branch - Tag PR builds as pr-<number> for easy identification - Use PR head SHA as version for traceability

github-actions · 2026-01-22T06:18:21Z

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	2026-01-23 09:16:17.110503986 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	a1442faf26d4ec409e2f62a685c1d4893f8d6bcbaf7bcb59d6fa1340	14599
μHead	fd173b993e12103cd734ca6710d364e17120a5eb37a224c64ab2b188*	5284
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	5837	10.26	3.25	0.51
2	6038	13.16	4.19	0.55
3	6238	14.59	4.61	0.58
5	6638	18.64	5.88	0.64
10	7644	28.92	9.11	0.79
43	14279	98.97	30.93	1.80

`Commit` transaction costs

This uses ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	563	2.44	1.16	0.20
2	742	3.38	1.73	0.22
3	923	4.36	2.33	0.24
5	1277	6.41	3.60	0.28
10	2176	12.13	7.25	0.40
54	10061	98.61	68.52	1.88

`CollectCom` transaction costs

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	525	24.42	7.12	0.42
2	114	636	32.23	9.37	0.51
3	170	747	41.62	12.04	0.61
4	224	858	52.40	15.00	0.72
5	283	969	64.35	18.25	0.84
6	338	1081	67.52	19.40	0.88
7	394	1192	84.78	23.93	1.06
8	450	1307	94.97	26.91	1.17

Cost of Increment Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	1792	24.00	7.62	0.48
2	1954	25.84	8.78	0.51
3	2146	29.17	10.39	0.56
5	2367	31.53	12.37	0.60
10	3295	43.20	18.98	0.78
39	7375	92.54	52.01	1.60

Cost of Decrement Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	615	22.80	7.38	0.41
2	758	24.25	8.44	0.44
3	971	27.10	9.91	0.48
5	1196	30.01	12.06	0.53
10	2234	43.37	19.11	0.74
41	6515	95.68	54.30	1.60

`Close` transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	674	27.51	8.47	0.46
2	855	29.56	9.71	0.50
3	1020	34.18	11.67	0.56
5	1202	34.29	13.02	0.57
10	1909	43.66	18.98	0.72
36	6206	98.76	51.91	1.60

`Contest` transaction costs

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	674	33.83	10.16	0.53
2	807	35.85	11.38	0.56
3	970	37.80	12.59	0.59
5	1200	42.01	15.08	0.65
10	2093	55.13	22.13	0.85
29	5009	99.19	47.06	1.51

`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	5790	27.13	9.10	0.69
2	5893	34.87	11.66	0.78
3	6251	47.24	15.96	0.92
4	6091	49.19	16.43	0.93
5	6288	56.98	19.07	1.02
6	6423	68.89	23.06	1.16
7	6768	82.70	27.90	1.32
8	6824	92.26	31.07	1.42
9	6792	90.52	30.32	1.40

`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	5834	18.93	6.32	0.61
10	1	57	5869	21.66	7.37	0.64
10	5	284	6003	29.79	10.58	0.73
10	10	569	6174	38.62	14.15	0.84
10	20	1138	6512	60.87	22.83	1.09
10	30	1707	6853	80.92	30.76	1.33
10	38	2164	7126	96.44	36.92	1.51

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 2026-01-23 09:19:52.131636853 UTC

Baseline Scenario

Number of nodes	1
Number of txs	300
Avg. Confirmation Time (ms)	5.630647606
P99	12.012606909999988ms
P95	6.937144200000002ms
P50	5.215849ms
Number of Invalid txs	0

Memory data

Time	Used	Free
2026-01-23 09:18:24.012150629 UTC	1715M	7044M
2026-01-23 09:18:25.012219105 UTC	1742M	6983M
2026-01-23 09:18:26.012194731 UTC	1756M	6969M
2026-01-23 09:18:27.012125929 UTC	1785M	6939M
2026-01-23 09:18:28.012111131 UTC	1801M	6874M
2026-01-23 09:18:29.012227312 UTC	1825M	6823M
2026-01-23 09:18:30.012158044 UTC	1848M	6797M
2026-01-23 09:18:31.012118644 UTC	1854M	6787M
2026-01-23 09:18:32.012109652 UTC	1854M	6785M
2026-01-23 09:18:33.01210102 UTC	1854M	6785M
2026-01-23 09:18:34.01210524 UTC	1854M	6785M
2026-01-23 09:18:35.012116068 UTC	1854M	6785M
2026-01-23 09:18:36.012116563 UTC	1854M	6785M
2026-01-23 09:18:37.012109394 UTC	1854M	6784M
2026-01-23 09:18:38.012112423 UTC	1854M	6784M
2026-01-23 09:18:39.012116719 UTC	1854M	6784M
2026-01-23 09:18:40.012110191 UTC	1854M	6784M
2026-01-23 09:18:41.012123487 UTC	1852M	6786M
2026-01-23 09:18:42.012115542 UTC	1856M	6782M
2026-01-23 09:18:43.012117285 UTC	1856M	6782M
2026-01-23 09:18:44.012111465 UTC	1856M	6782M
2026-01-23 09:18:45.012121525 UTC	1856M	6781M
2026-01-23 09:18:46.01211009 UTC	1856M	6781M
2026-01-23 09:18:47.012114267 UTC	1856M	6781M
2026-01-23 09:18:48.012116609 UTC	1856M	6781M
2026-01-23 09:18:49.01212035 UTC	1856M	6781M
2026-01-23 09:18:50.012119027 UTC	1856M	6781M
2026-01-23 09:18:51.012120036 UTC	1857M	6780M
2026-01-23 09:18:52.012116567 UTC	1857M	6780M
2026-01-23 09:18:53.01210921 UTC	1857M	6780M

Three local nodes

Number of nodes	3
Number of txs	900
Avg. Confirmation Time (ms)	38.144533460
P99	75.17686619999999ms
P95	63.200868ms
P50	34.3692985ms
Number of Invalid txs	0

Memory data

Time	Used	Free
2026-01-23 09:19:04.998547491 UTC	1740M	6935M
2026-01-23 09:19:05.998506029 UTC	1740M	6934M
2026-01-23 09:19:06.998523271 UTC	1754M	6920M
2026-01-23 09:19:07.998531867 UTC	1757M	6917M
2026-01-23 09:19:08.99852719 UTC	1759M	6915M
2026-01-23 09:19:09.998436834 UTC	1767M	6907M
2026-01-23 09:19:10.99991532 UTC	1824M	6822M
2026-01-23 09:19:11.998440098 UTC	1863M	6783M
2026-01-23 09:19:12.998448054 UTC	1901M	6717M
2026-01-23 09:19:13.998419149 UTC	1939M	6651M
2026-01-23 09:19:14.999552564 UTC	1983M	6606M
2026-01-23 09:19:15.99877582 UTC	2005M	6583M
2026-01-23 09:19:16.99886591 UTC	2024M	6553M
2026-01-23 09:19:17.998887211 UTC	2033M	6534M
2026-01-23 09:19:18.999719532 UTC	2051M	6506M
2026-01-23 09:19:19.99901362 UTC	2062M	6485M
2026-01-23 09:19:20.998893028 UTC	2067M	6470M
2026-01-23 09:19:21.998863027 UTC	2074M	6452M
2026-01-23 09:19:22.998660969 UTC	2083M	6432M
2026-01-23 09:19:24.000461946 UTC	2086M	6423M
2026-01-23 09:19:24.998466005 UTC	2093M	6410M
2026-01-23 09:19:25.998410635 UTC	2097M	6400M
2026-01-23 09:19:26.998487024 UTC	2099M	6391M
2026-01-23 09:19:27.998489357 UTC	2100M	6386M
2026-01-23 09:19:28.998515841 UTC	2102M	6385M
2026-01-23 09:19:29.998423904 UTC	2104M	6382M
2026-01-23 09:19:30.99848705 UTC	2107M	6379M
2026-01-23 09:19:31.99845966 UTC	2108M	6377M
2026-01-23 09:19:32.998463367 UTC	2107M	6378M
2026-01-23 09:19:33.998431616 UTC	2107M	6378M
2026-01-23 09:19:34.998432453 UTC	2110M	6375M
2026-01-23 09:19:35.998481705 UTC	2110M	6374M
2026-01-23 09:19:36.998461423 UTC	2111M	6374M
2026-01-23 09:19:37.998437174 UTC	2115M	6369M
2026-01-23 09:19:38.998478568 UTC	2115M	6369M
2026-01-23 09:19:39.998451954 UTC	2115M	6369M
2026-01-23 09:19:40.998460625 UTC	2115M	6369M
2026-01-23 09:19:41.998436854 UTC	2115M	6369M
2026-01-23 09:19:42.99844149 UTC	2124M	6359M
2026-01-23 09:19:43.998501958 UTC	2125M	6359M
2026-01-23 09:19:44.998453004 UTC	2124M	6359M
2026-01-23 09:19:45.998432092 UTC	2124M	6359M
2026-01-23 09:19:46.998473344 UTC	2125M	6358M
2026-01-23 09:19:47.998484184 UTC	2125M	6358M
2026-01-23 09:19:48.998462386 UTC	2127M	6356M
2026-01-23 09:19:49.998484916 UTC	2127M	6356M
2026-01-23 09:19:50.998466701 UTC	2127M	6355M
2026-01-23 09:19:51.998468728 UTC	2126M	6355M

github-actions · 2026-01-22T06:20:45Z

Transaction cost differences

No cost or size differences found

v0d1ch and others added 13 commits January 15, 2026 10:29

Use StrictData in hydra-node

c347154

This reduces the memory usage significantly (1.7 GB vs. 137 MB for the stress-test I was running) Signed-off-by: Sasha Bogicevic <sasha.bogicevic@iohk.io>

ci: enable Docker builds for pull requests

4f243fa

- Add pull_request trigger for PRs targeting master branch - Tag PR builds as pr-<number> for easy identification - Use PR head SHA as version for traceability

ci: trigger CI and Docker builds for v1.2.0-base branch

7c12876

fix: treefmt

67cdf89

increase mainnet limit

1f5003e

fix: icid tx version race condition

3b3b7b9

trigger ci

ee9db03

fix: stale oversight

0638425

fix: compile error

b89b8e6

fix: ci

75e78ae

fix: reset deposit at sideload

f000398

fix: fix finalized -> sideload stale head

66cb2aa

HinsonSIDAN added 4 commits January 22, 2026 18:11

fix: decommit reapply -> stale head

6bc19bc

ci: format

0142966

fix: ic stale after finalized

3da07f0

fix: stale snapshot due to stale id status at sideload

9606d98

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

V1.2.3 pr5 6#7

V1.2.3 pr5 6#7
awcjack wants to merge 17 commits intov1.2.0-basefrom
v1.2.3-pr5-6

awcjack commented Jan 22, 2026

Uh oh!

github-actions bot commented Jan 22, 2026 •

edited

Loading

Uh oh!

github-actions bot commented Jan 22, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

Conversation

awcjack commented Jan 22, 2026

Uh oh!

github-actions bot commented Jan 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Transaction costs

Script summary

Init transaction costs

Commit transaction costs

CollectCom transaction costs

Cost of Increment Transaction

Cost of Decrement Transaction

Close transaction costs

Contest transaction costs

Abort transaction costs

FanOut transaction costs

End-to-end benchmark results

Baseline Scenario

Memory data

Three local nodes

Memory data

Uh oh!

github-actions bot commented Jan 22, 2026

Transaction cost differences

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

github-actions bot commented Jan 22, 2026 •

edited

Loading

`Init` transaction costs

`Commit` transaction costs

`CollectCom` transaction costs

`Close` transaction costs

`Contest` transaction costs

`Abort` transaction costs

`FanOut` transaction costs