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26 lines
1.1 KiB
Haskell
26 lines
1.1 KiB
Haskell
{-# LANGUAGE DeriveAnyClass, DeriveGeneric, FlexibleInstances, StandaloneDeriving #-}
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module Main where
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import Criterion.Main
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import Data.String
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import Prologue
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import Test.QuickCheck hiding (Fixed)
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main :: IO ()
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main = do
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benchmarks <- sequenceA []
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defaultMain benchmarks
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-- | Defines a named group of n benchmarks over inputs generated by an `Arbitrary` instance.
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-- |
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-- | The inputs’ sizes at each iteration are measured by a metric function, which gives the name of the benchmark. This makes it convenient to correlate a benchmark of some function over lists with e.g. input `length`.
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generativeBenchmark :: (Arbitrary a, Show m, Ord m) => String -> Int -> (a -> m) -> (a -> Benchmarkable) -> IO Benchmark
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generativeBenchmark name n metric benchmark = do
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benchmarks <- traverse measure (replicate n defaultSize)
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pure $! bgroup name (snd <$> (sortOn fst benchmarks))
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where measure n = do
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input <- generate (resize n arbitrary)
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let measurement = metric input
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pure $! (measurement, bench (show measurement) (benchmark input))
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defaultSize = 100
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