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{-# language DeriveAnyClass, DeriveGeneric, OverloadedStrings #-}
module Main where
import Gauge
import qualified Blaze.ByteString.Builder.HTTP as Blaze
import Data.ByteString.Builder.HTTP.Chunked
import Control.DeepSeq
import qualified Data.ByteString as S
import qualified Data.ByteString.Builder as B
import qualified Data.ByteString.Builder.Extra as B
import qualified Data.ByteString.Lazy as L
import Data.Semigroup
import GHC.Generics
main :: IO ()
main = defaultMain
[ benchEncode "clone village"
cloneVillage
(foldMap fromPerson)
, benchEncode "100 4kB chunks"
(S.replicate 4096 95)
(stimes (100 :: Int) . B.byteString)
, benchEncode "200kB strict bytestring"
(S.replicate (200 * 1000) 95)
B.byteString
, benchEncode "1000 small chunks"
"Hello"
(stimes (1000 :: Int) . B.byteString)
, benchEncode "1000 small chunks nocopy"
"Hello"
(stimes (1000 :: Int) . B.byteStringInsert)
]
-- Example adapted from
-- http://lambda-view.blogspot.de/2010/11/blaze-builder-library-faster.html
data Person = Person { pName :: String, pAge :: Int }
deriving (Generic, NFData)
people :: [Person]
people = zipWith Person ["Haskell 98", "Switzerland", "λ-bot"] [12, 719, 7]
fromStringLen32le :: String -> B.Builder
fromStringLen32le cs =
B.int32LE (fromIntegral $ length cs) <> B.stringUtf8 cs
fromPerson :: Person -> B.Builder
fromPerson p =
fromStringLen32le (pName p) <> B.int32LE (fromIntegral $ pAge p)
cloneVillage :: [Person]
cloneVillage = take 10000 $ cycle $ people
-- Utils
benchEncode :: NFData input => String -> input -> (input -> B.Builder) -> Benchmark
benchEncode name input mkBuilder =
env (return input) $ \input' -> bgroup name
[ bench "bsbhc" $ nf (encode . mkBuilder) input'
, bench "Blaze" $ nf (encodeBlaze . mkBuilder) input'
]
encode :: B.Builder -> L.ByteString
encode = B.toLazyByteString . chunkedTransferEncoding
encodeBlaze :: B.Builder -> L.ByteString
encodeBlaze = B.toLazyByteString . Blaze.chunkedTransferEncoding
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