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easier options for bench.hs
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118
tools/bench.hs
118
tools/bench.hs
@ -2,13 +2,16 @@
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{-
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bench.hs (see usage string below).
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For simple benchmarking. Similar to my darcs-benchmark/bench.hs script.
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For simple benchmarking. Based on my darcs-benchmark/bench.hs script.
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Simon Michael 2008
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Example:
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$ cat - >bench.tests
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-f sample.ledger -s balance
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-f ~/.ledger -s balance
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$ bench.hs bench.tests 2 hledger "ledger --no-cache" ledger
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$ bench.hs -v hledger "ledger --no-cache" ledger
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Using bench.tests
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Running 2 tests 2 times in . with 3 executables at 2008-11-26 18:52:15.776357 UTC:
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1: hledger -f sample.ledger -s balance [0.02s]
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2: hledger -f sample.ledger -s balance [0.01s]
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@ -52,46 +55,95 @@ import Data.Time.Format
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import System.Locale
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import Control.Monad
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import Debug.Trace
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import System.Console.GetOpt
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usagehdr = "bench [-f testsfile] [-n iterations] [-p precision] executable1 [executable2 ...]\n" ++
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"\n" ++
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"Run some functional tests with each of the specified executables,\n" ++
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"where a test is \"zero or more arguments supported by all executables\",\n" ++
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"and report the best execution times.\n"
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options = [
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Option ['f'] ["testsfile"] (ReqArg File "testsfile") "file containing tests, one per line, default: bench.tests"
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,Option ['n'] ["iterations"] (ReqArg Num "iterations") "number of test iterations to run, default: 2"
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,Option ['p'] ["precision"] (ReqArg Prec "precision") "show times with this precision, default: 2"
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,Option ['v'] ["verbose"] (NoArg Verbose) "show intermediate results"
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,Option ['h'] ["help"] (NoArg Help) "show this help"
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]
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usage = "bench.hs <testsfile> <num> [<executable> ...]\n" ++
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"\n" ++
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"Run some functional tests, defined as lines of arguments in\n" ++
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"testsfile, num times with each of the specified executables,\n" ++
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"printing the execution times and a summary.\n" ++
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"Tips:\n" ++
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"- comment out tests with #\n"
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usageftr = "\n" ++
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"Tips:\n" ++
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"- executables may have arguments if enclosed in quotes\n" ++
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"- tests can be commented out with #\n" ++
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"- results are saved in benchresults.{html,txt}\n"
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precision = 2
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usage = usageInfo usagehdr options ++ usageftr
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-- an option value
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data Opt = File {value::String}
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| Num {value::String}
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| Prec {value::String}
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-- I don't know how optValuesForConstructor etc. can have that
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-- type signature with these, but it works..
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-- | Some Int
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| Verbose
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| Help
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deriving (Eq,Show)
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-- option value getters.
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fileopt :: [Opt] -> String
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fileopt opts = optValueWithDefault File "bench.tests" opts
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precisionopt :: [Opt] -> Int
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precisionopt opts = read $ optValueWithDefault Prec "2" opts
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numopt :: [Opt] -> Int
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numopt opts = read $ optValueWithDefault Num "2" opts
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verboseopt :: [Opt] -> Bool
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verboseopt opts = Verbose `elem` opts
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-- options utilities
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parseargs :: [String] -> ([Opt],[String])
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parseargs as =
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case (getOpt Permute options as) of
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(opts,args,[]) -> (opts,args)
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(_,_,errs) -> error (concat errs ++ usage)
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optValueWithDefault :: (String -> Opt) -> String -> [Opt] -> String
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optValueWithDefault optcons def opts =
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last $ [def] ++ optValuesForConstructor optcons opts
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optValuesForConstructor :: (String -> Opt) -> [Opt] -> [String]
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optValuesForConstructor optcons opts = concatMap get opts
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where get o = if optcons v == o then [v] else [] where v = value o
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main = do
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(testsfile,iterations,dir,exes) <- getArgs >>= return . parseargs
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tests <- readFile testsfile >>= return . testlines
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args <- getArgs
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let (opts,exes) = parseargs args
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when (null exes) $ error $ "at least one executable needed\n" ++ usage
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let (file, num) = (fileopt opts, numopt opts)
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tests <- readFile file >>= return . filter istest . lines
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now <- getCurrentTime
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putStrLn $ printf "Running %d tests %d times in %s with %d executables at %s:\n"
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(length tests) (iterations) dir (length exes) (show now)
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let doexe t e = sequence $ map (doiteration t e dir) [1..iterations]
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putStrLn $ printf "Using %s" file
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putStrLn $ printf "Running %d tests %d times with %d executables at %s:"
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(length tests) num (length exes) (show now)
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let doexe t e = sequence $ map (doiteration opts t e) [1..num]
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let dotest t = sequence $ map (doexe t) exes
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hSetBuffering stdout NoBuffering
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results <- mapM dotest tests
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summarise tests exes results
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where
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-- parseargs (t:n:d:[]) = parseargs (t:n:d:["darcs"])
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parseargs (t:n:es) = (t,read n,".",es)
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parseargs _ = error $ "\n" ++ usage
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testlines s = filter istest $ lines s
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istest s = not (null s' || ("#" `isPrefixOf` s')) where s' = clean s
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summarise opts tests exes results
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istest s = not (null s' || ("#" `isPrefixOf` s')) where s' = clean s
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clean = unwords . words
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doiteration :: String -> String -> String -> Int -> IO Float
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doiteration test exe dir iteration = do
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doiteration :: [Opt] -> String -> String -> Int -> IO Float
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doiteration opts test exe iteration = do
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let cmd = unwords [exe,clean test]
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putStr $ show iteration ++ ": " ++ cmd
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when (verboseopt opts) $ putStr $ show iteration ++ ": " ++ cmd
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hFlush stdout
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t <- time cmd
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printf "\t[%ss]\n" (showtime t)
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when (verboseopt opts) $ printf "\t[%ss]\n" (showtime opts t)
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return t
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time :: String -> IO Float
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@ -104,23 +156,25 @@ time cmd = do
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t2 <- getCurrentTime
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return $ realToFrac $ diffUTCTime t2 t1
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summarise tests exes results = do
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summarise :: [Opt] -> [String] -> [String] -> [[[Float]]] -> IO ()
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summarise opts tests exes results = do
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putStrLn "\nSummary (best iteration):\n"
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let t = maketable tests exes results
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let t = maketable opts tests exes results
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putStrLn $ TA.render id t
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let outname = "benchresults"
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writeFile (outname <.> "txt") $ TA.render id t
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writeFile (outname <.> "html") $ renderHtml $ TH.css TH.defaultCss +++ TH.render id t
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maketable :: [String] -> [String] -> [[[Float]]] -> Table String
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maketable rownames colnames results = Table rowhdrs colhdrs rows
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maketable :: [Opt] -> [String] -> [String] -> [[[Float]]] -> Table String
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maketable opts rownames colnames results = Table rowhdrs colhdrs rows
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where
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rowhdrs = Group NoLine $ map Header $ padright rownames
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colhdrs = Group SingleLine $ map Header colnames
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rows = map (map (showtime . minimum)) results
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rows = map (map ((showtime opts) . minimum)) results
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padright ss = map (printf (printf "%%-%ds" w)) ss
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where w = maximum $ map length ss
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showtime = printf $ "%."++(show precision)++"f"
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showtime :: [Opt] -> (Float -> String)
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showtime opts = printf $ "%."++(show $ precisionopt opts)++"f"
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strace a = trace (show a) a
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