cardano-api: 8.29.1.0 -> 8.37.0.0 #1232

locallycompact · 2024-01-03T18:04:58Z

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

github-actions · 2024-01-04T08:10:01Z

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	2024-02-02 13:30:56.459649302 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	985245919fcc6c0c5cd116023cd2c947c43e80dcbb5075fe12433fbb	4072
νCommit	7cb20fa71eb4c563ca283566ebe0aa65859d96c3f8cba35c52c181fd	2043
νHead	7a36661f5c15e9f1783aeaab890812c59b7286cbbc6de762d3110772	8816
μHead	8b111ac12274e46314769295a1c5dcab1d260096fc469fd698065463*	3851

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	4374	10.25	3.95	0.45
2	4575	12.47	4.79	0.49
3	4774	14.79	5.67	0.52
5	5179	19.33	7.40	0.59
10	6185	30.30	11.55	0.75
41	12417	98.96	37.57	1.77

Cost of Commit Transaction

This is using ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	534	11.37	4.44	0.30
2	722	15.04	6.07	0.35
3	912	18.85	7.75	0.40
5	1288	26.90	11.27	0.51
10	2217	49.55	20.97	0.80
19	3891	99.43	41.75	1.43

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	480	21.78	8.51	0.41
2	114	594	33.21	13.10	0.54
3	169	700	48.27	19.14	0.71
4	226	810	64.17	25.59	0.89
5	282	920	77.72	31.29	1.04
6	336	1035	97.41	39.36	1.27

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	543	16.72	7.70	0.36
2	629	17.59	8.62	0.38
3	844	19.77	10.57	0.42
5	1084	22.13	12.85	0.47
10	1920	30.04	20.30	0.62
50	8120	90.63	77.66	1.80

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	592	20.22	8.98	0.40
2	714	21.76	10.32	0.43
3	938	24.24	12.39	0.48
5	1090	26.44	14.39	0.52
10	1932	36.02	22.60	0.69
47	7676	99.50	78.23	1.86

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	4304	19.03	8.18	0.55
2	4501	31.77	13.87	0.71
3	4581	46.46	20.31	0.87
4	4629	53.95	23.30	0.96
5	4837	79.50	34.76	1.26

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	4206	7.84	3.28	0.42
5	1	57	4239	8.86	3.96	0.44
5	5	285	4375	13.77	7.00	0.50
5	10	569	4544	19.92	10.81	0.59
5	20	1139	4884	32.01	18.35	0.76
5	30	1708	5225	44.52	26.07	0.93
5	40	2275	5562	57.12	33.83	1.10
5	50	2844	5901	69.35	41.43	1.27
5	75	4261	6744	99.95	60.45	1.69

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 2024-02-02 13:33:01.039541148 UTC

Baseline Scenario

Number of nodes	3
Number of txs	9000
Avg. Confirmation Time (ms)	22.761068672
P99	53.093179420000176ms
P95	31.44388305ms
P50	20.339135ms
Number of Invalid txs	0

Baseline Scenario

Number of nodes	1
Number of txs	3000
Avg. Confirmation Time (ms)	4.904204899
P99	8.77058835999996ms
P95	6.453911049999996ms
P50	4.756533ms
Number of Invalid txs	0

ch1bo · 2024-01-05T10:42:43Z

We consider this blocked by #1213 as this would make us not need to work around a changed ToJSON ShelleyTxCert upstream.

v0d1ch

Had some questions, overall looks good 👍

v0d1ch · 2024-01-22T09:04:19Z

hydra-cardano-api/src/Hydra/Cardano/Api/Tx.hs

--
-- NOTE: this function is partial and throws if given a Byron transaction for
-- which fees are necessarily implicit.
-txFee' :: HasCallStack => Tx era -> Lovelace


Why don't we keep the HasCallStack here?

Because this function seemingly can be made total now

v0d1ch · 2024-01-22T09:06:47Z

hydra-cardano-api/src/Hydra/Cardano/Api/TxOutValue.hs

@@ -7,8 +7,9 @@ import Hydra.Cardano.Api.MaryEraOnwards (IsMaryEraOnwards (..))
 -- | Inject some 'Value' into a 'TxOutValue'
 mkTxOutValue ::
  forall era.
+  IsShelleyBasedEra era =>
  IsMaryEraOnwards era =>


Do we need to keep both constraints here?

Yes. Neither implies the other

v0d1ch · 2024-01-22T09:16:49Z

hydra-node/src/Hydra/Chain/CardanoClient.hs

@@ -331,8 +337,16 @@ queryUTxOByTxIn ::
 queryUTxOByTxIn networkId socket queryPoint inputs =
  runQueryExpr networkId socket queryPoint $ do
    (AnyCardanoEra era) <- queryCurrentEraExpr
-    eraUTxO <- queryInEraExpr era $ QueryUTxO (QueryUTxOByTxIn (Set.fromList inputs))
-    pure $ UTxO.fromApi eraUTxO
+    (sbe :: ShelleyBasedEra e) <- liftIO $ assumeShelleyBasedEraOrThrow era


Is this type annotation needed?

It should work without it.

ch1bo

Overall fine changes, but we should avoid adding a witness to fromApi when we have type classes and also adding always 10ADA to genValue is dangerous IMO.

ch1bo · 2024-01-30T11:44:49Z

hydra-cardano-api/src/Hydra/Cardano/Api/Tx.hs

--
-- NOTE: this function is partial and throws if given a Byron transaction for
-- which fees are necessarily implicit.
-txFee' :: HasCallStack => Tx era -> Lovelace


Because this function seemingly can be made total now

ch1bo · 2024-01-30T11:48:05Z

hydra-cardano-api/src/Hydra/Cardano/Api/TxOut.hs

  (IsMaryEraOnwards era, IsAlonzoEraOnwards era, IsBabbageEraOnwards era, IsShelleyBasedEra era) =>
  Network ->
  Plutus.TxOut ->
  Maybe (TxOut CtxUTxO era)
 fromPlutusTxOut network out = do
-  value <- TxOutValue maryEraOnwards <$> fromPlutusValue plutusValue
+  value <- shelleyBasedEraConstraints (shelleyBasedEra @era) $ TxOutValueShelleyBased (shelleyBasedEra @era) <$> (toLedgerValue (maryEraOnwards @era) <$> fromPlutusValue plutusValue)


Should: use mkTxOutValue

This seemingly has become a lot more complicated now (too complicated? smell?) and hence we should keep the complexity in one function only.

ch1bo · 2024-01-30T11:48:11Z

hydra-cardano-api/src/Hydra/Cardano/Api/TxOut.hs

@@ -46,7 +46,7 @@ mkTxOutAutoBalance ::
  ReferenceScript Era ->
  TxOut CtxTx Era
 mkTxOutAutoBalance pparams addr val dat ref =
-  let out = TxOut addr (TxOutValue maryEraOnwards val) dat ref
+  let out = TxOut addr (TxOutValueShelleyBased (shelleyBasedEra @Era) (toLedgerValue (maryEraOnwards @Era) val)) dat ref


Should: use mkTxOutValue

This seemingly has become a lot more complicated now (too complicated? smell?) and hence we should keep the complexity in one function only.

ch1bo · 2024-01-30T11:49:41Z

hydra-cardano-api/src/Hydra/Cardano/Api/Value.hs

@@ -1,14 +1,13 @@
 module Hydra.Cardano.Api.Value where

-import Hydra.Cardano.Api.Prelude
+import Hydra.Cardano.Api.Prelude hiding (toLedgerValue)


Should: use the upstream toLedgerValue if it exists now

ch1bo · 2024-01-30T11:50:20Z

hydra-chain-observer/src/Hydra/ChainObserver.hs

@@ -159,7 +158,7 @@ chainSyncClient tracer networkId startingPoint observerHandler =
    ClientStNext
      { recvMsgRollForward = \blockInMode tip -> ChainSyncClient $ do
          case blockInMode of
-            BlockInMode _ (Block _header txs) BabbageEraInCardanoMode -> do
+            BlockInMode BabbageEra (Block _header txs) -> do


Nice.. they removed some redundancy witnessing.

ch1bo · 2024-01-30T11:54:37Z

hydra-cardano-api/src/Cardano/Api/UTxO.hs

@@ -87,35 +87,35 @@ min = UTxO . uncurry Map.singleton . Map.findMin . toMap
 -- * Type Conversions

 -- | Transforms a UTxO containing tx outs from any era into Babbage era.
-fromApi :: Cardano.Api.UTxO era -> UTxO
-fromApi (Cardano.Api.UTxO eraUTxO) =
+fromApi :: forall era. ShelleyBasedEra era -> Cardano.Api.UTxO era -> UTxO


Must: not introduce witness values if we can avoid it

We do not need this witness value and we try hard to stick to a constraint based interface in hydra-cardano-api.

Suggested change

fromApi :: forall era. ShelleyBasedEra era -> Cardano.Api.UTxO era -> UTxO

fromApi :: IsShelleyBasedEra era => Cardano.Api.UTxO era -> UTxO

should be possible here.

I don't see how to do this. We are querying AnyCardanoEra at runtime. How do you prove this constraint holds?

ch1bo · 2024-01-30T11:56:47Z

hydra-node/src/Hydra/Chain/CardanoClient.hs

+
+assumeShelleyBasedEraOrThrow :: MonadThrow m => CardanoEra era -> m (ShelleyBasedEra era)
+assumeShelleyBasedEraOrThrow era = do
+  x <- requireShelleyBasedEra era


Could: name this requireShelleyBasedEraOrThrow to indicate it's a thin wrapper around requireShelleyBasedEra

Could: follow the module style and use an Maybe discharging function like throwOnUnsupportedNtcVersion for Either

i.e. throwOnNonShelleyBasedEra :: MonadThrow m => Maybe (ShelleyBasedEra a) -> m (ShelleyBasedEra a)

ch1bo · 2024-01-30T12:00:37Z

hydra-node/src/Hydra/Chain/CardanoClient.hs

@@ -331,8 +337,16 @@ queryUTxOByTxIn ::
 queryUTxOByTxIn networkId socket queryPoint inputs =
  runQueryExpr networkId socket queryPoint $ do
    (AnyCardanoEra era) <- queryCurrentEraExpr
-    eraUTxO <- queryInEraExpr era $ QueryUTxO (QueryUTxOByTxIn (Set.fromList inputs))
-    pure $ UTxO.fromApi eraUTxO
+    (sbe :: ShelleyBasedEra e) <- liftIO $ assumeShelleyBasedEraOrThrow era


It should work without it.

hydra-node/src/Hydra/Ledger/Cardano.hs

This works as long as all shelley based eras use the 'MaryValue era' type from the cardano-ledger.

ch1bo

Still some "Should"-haves, but in principle I do approve now (as we explored the situation with genValue and know why things are one way or the other now)

ch1bo · 2024-02-02T14:06:44Z

hydra-node/src/Hydra/Ledger/Cardano.hs

@@ -428,7 +429,7 @@ genAddressInEra networkId =
  mkVkAddress networkId <$> genVerificationKey

 genValue :: Gen Value
-genValue = scale (`div` 10) $ fromLedgerValue <$> arbitrary
+genValue = liftA2 (<>) (pure $ lovelaceToValue $ Lovelace 10_000_000) (scale (`div` 10) $ fromLedgerValue <$> arbitrary)


Should: not need to divide by 10 anymore and use a bit smaller value, 10ADA is a bit much and I think 1-2 ADA is "more realistic" (I know it was millions of ADA before)

locallycompact force-pushed the lc/cardano-api-8.37 branch from ce78b97 to 3404f9e Compare January 4, 2024 07:59

locallycompact force-pushed the lc/cardano-api-8.37 branch from 3404f9e to af7ad25 Compare January 4, 2024 08:15

ch1bo assigned locallycompact Jan 4, 2024

ch1bo force-pushed the master branch 8 times, most recently from 0a69b7e to 55a9077 Compare January 18, 2024 18:00

v0d1ch approved these changes Jan 22, 2024

View reviewed changes

locallycompact force-pushed the lc/cardano-api-8.37 branch 5 times, most recently from 6fa48f3 to 8404d4d Compare January 29, 2024 21:02

ch1bo self-requested a review January 30, 2024 10:39

ch1bo requested changes Jan 30, 2024

View reviewed changes

ch1bo force-pushed the lc/cardano-api-8.37 branch 2 times, most recently from c7c1321 to 2fe512a Compare January 31, 2024 11:43

locallycompact force-pushed the lc/cardano-api-8.37 branch from 2fe512a to 4984495 Compare January 31, 2024 13:17

locallycompact and others added 3 commits February 2, 2024 10:34

add genOutput/propHasEnoughLovelace

b8016a2

cardano-api: 8.29.1.0 -> 8.37.0.0

8bbf6fc

Convert UTxO from supported eras to BabbageEra

288d5db

This works as long as all shelley based eras use the 'MaryValue era' type from the cardano-ledger.

locallycompact force-pushed the lc/cardano-api-8.37 branch 2 times, most recently from 9054b74 to 288d5db Compare February 2, 2024 12:14

Add ADA to genTxOut

82a47a5

locallycompact force-pushed the lc/cardano-api-8.37 branch from 59c5752 to 82a47a5 Compare February 2, 2024 13:05

Merge branch 'master' into lc/cardano-api-8.37

eb3dd66

ch1bo approved these changes Feb 2, 2024

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locallycompact merged commit 2074ee5 into master Feb 4, 2024
19 of 20 checks passed

locallycompact deleted the lc/cardano-api-8.37 branch February 4, 2024 15:59

ch1bo mentioned this pull request Feb 5, 2024

hydra-cluster: Retry connection on HandshakeException #1286

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cardano-api: 8.29.1.0 -> 8.37.0.0 #1232

cardano-api: 8.29.1.0 -> 8.37.0.0 #1232

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	fromApi :: forall era. ShelleyBasedEra era -> Cardano.Api.UTxO era -> UTxO
	fromApi :: IsShelleyBasedEra era => Cardano.Api.UTxO era -> UTxO

cardano-api: 8.29.1.0 -> 8.37.0.0 #1232

cardano-api: 8.29.1.0 -> 8.37.0.0 #1232

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Transactions Costs

Script summary

Cost of Init Transaction

Cost of Commit Transaction

Cost of CollectCom Transaction

Cost of Close Transaction

Cost of Contest Transaction

Cost of Abort Transaction

Cost of FanOut Transaction

End-To-End Benchmark Results

Baseline Scenario

Baseline Scenario

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