+ bench

1 files changed, 41 insertions, 0 deletions

diff --git a/bench/serialization.hs b/bench/serialization.hs
new file mode 100644
index 00000000..31b5b0bf
--- /dev/null
+++ b/bench/serialization.hs
@@ -0,0 +1,41 @@
+{-# OPTIONS -fno-warn-orphans #-}
+module Main (main) where
+
+import Control.Applicative
+import Control.DeepSeq
+import Criterion.Main
+import Data.ByteString (ByteString)
+import Data.Serialize
+import Network.Torrent.PWP
+
+
+instance NFData BlockIx where
+  rnf (BlockIx a b c) = a `deepseq` b `deepseq` rnf c
+
+instance NFData Block where
+  rnf (Block a b c) = a `deepseq` b `deepseq` rnf c
+
+instance NFData Message where
+  rnf (Have i)     = rnf i
+  rnf (Bitfield b) = rnf b
+  rnf (Request  b) = rnf b
+  rnf (Piece    b) = rnf b
+  rnf (Cancel   b) = rnf b
+  rnf (Port     i) = rnf i
+  rnf _ = ()  -- other fields are forced by pattern matching
+
+encodeMessages :: [Message] -> ByteString
+encodeMessages xs = runPut (mapM_ put xs)
+
+decodeMessages :: ByteString -> Either String [Message]
+decodeMessages = runGet (many get)
+
+main :: IO ()
+main = do
+  let datas = replicate 100000 (Request (BlockIx 0 0 0))
+
+  defaultMain
+    [ datas `deepseq` bench "message/encode"   $ nf encodeMessages datas
+    , let binary = encodeMessages datas in
+      binary `deepseq` bench "message/decode"  $ nf decodeMessages binary
+    ]
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