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module Main where
import qualified Codec.Archive.Tar as Tar
import qualified Codec.Archive.Tar.Index as TarIndex
import qualified Data.ByteString.Lazy as BS
import Control.Exception
import Criterion
import Criterion.Main
main = defaultMain benchmarks
benchmarks :: [Benchmark]
benchmarks =
[ env loadTarFile $ \tarfile ->
bench "read" (nf Tar.read tarfile)
, env loadTarEntriesList $ \entries ->
bench "write" (nf Tar.write entries)
, env loadTarEntries $ \entries ->
bench "index build" (nf TarIndex.build entries)
, env loadTarIndex $ \entries ->
bench "index rebuild" (nf (TarIndex.finalise . TarIndex.unfinalise) entries)
]
loadTarFile :: IO BS.ByteString
loadTarFile =
BS.readFile "01-index.tar"
loadTarEntries :: IO (Tar.Entries Tar.FormatError)
loadTarEntries =
fmap Tar.read loadTarFile
loadTarEntriesList :: IO [Tar.Entry]
loadTarEntriesList =
fmap (Tar.foldEntries (:) [] throw) loadTarEntries
loadTarIndex :: IO TarIndex.TarIndex
loadTarIndex =
fmap (either throw id . TarIndex.build)
loadTarEntries
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