76 lines
2.6 KiB
Haskell
76 lines
2.6 KiB
Haskell
{-# LANGUAGE RecordWildCards #-}
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module Bench (Benchmark (..), benchmarkScript, specificationTreeToBenchmarks) where
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import Codec.Serialise (serialise)
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import Data.ByteString.Lazy qualified as LBS
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import Data.ByteString.Short qualified as SBS
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import Data.Csv (DefaultOrdered, ToNamedRecord, header, headerOrder, namedRecord, toNamedRecord, (.=))
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import Data.List (intercalate)
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import Data.Maybe (fromJust)
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import Data.Text (Text, pack)
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import GHC.Generics (Generic)
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import Plutus.V1.Ledger.Api (
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ExBudget (ExBudget),
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ExCPU,
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ExMemory,
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Script,
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)
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import Plutus.V1.Ledger.Api qualified as Plutus
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import Spec.Spec (
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Specification (Specification),
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SpecificationExpectation (Success),
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SpecificationTree (..),
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)
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--------------------------------------------------------------------------------
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-- | Represents the benchmark of a plutus script.
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data Benchmark = Benchmark
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{ name :: Text
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-- ^ Human readable name describing script.
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, bCPUBudget :: ExCPU
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-- ^ The on-chain execution cost of a script.
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, bMemoryBudget :: ExMemory
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-- ^ The on-chain memory budget of a script.
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, bScriptSize :: Int
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-- ^ The on-chain size of a script.
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}
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deriving stock (Show, Eq, Ord, Generic)
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instance ToNamedRecord Benchmark where
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toNamedRecord (Benchmark {..}) =
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namedRecord
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[ "name" .= name
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, "cpu" .= bCPUBudget
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, "mem" .= bMemoryBudget
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, "size" .= bScriptSize
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]
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instance DefaultOrdered Benchmark where
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headerOrder _ = header ["name", "cpu", "mem", "size"]
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benchmarkScript :: String -> Script -> Benchmark
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benchmarkScript name script = Benchmark (pack name) cpu mem size
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where
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(ExBudget cpu mem) = evalScriptCounting . serialiseScriptShort $ script
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size = SBS.length . SBS.toShort . LBS.toStrict . serialise $ script
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serialiseScriptShort :: Script -> SBS.ShortByteString
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serialiseScriptShort = SBS.toShort . LBS.toStrict . serialise -- Using `flat` here breaks `evalScriptCounting`
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evalScriptCounting :: Plutus.SerializedScript -> Plutus.ExBudget
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evalScriptCounting script =
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let costModel = fromJust Plutus.defaultCostModelParams
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(_logout, e) = Plutus.evaluateScriptCounting Plutus.Verbose costModel script []
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in case e of
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Left evalError -> error ("Eval Error: " <> show evalError)
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Right exbudget -> exbudget
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specificationTreeToBenchmarks :: SpecificationTree -> [Benchmark]
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specificationTreeToBenchmarks = go []
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where
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go names (Terminal ((Specification n ex s))) = case ex of
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Success -> [benchmarkScript (intercalate "/" (names <> [n])) s]
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_ -> []
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go names (Group gn tree) = mconcat $ go (names <> [gn]) <$> tree
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