{-# LANGUAGE BangPatterns, NamedFieldPuns, ScopedTypeVariables, RecordWildCards, FlexibleContexts #-} {-# LANGUAGE CPP, OverloadedStrings, TupleSections #-} -------------------------------------------------------------------------------- -- NOTE: This is best when compiled with "ghc -threaded" -- However, ideally for real benchmarking runs we WANT the waitForProcess below block the whole process. -- However^2, currently [2012.05.03] when running without threads I get errors like this: -- benchmark.run: bench_hive.log: openFile: resource busy (file is locked) -------------------------------------------------------------------------------- -- Disabling some stuff until we can bring it back up after the big transition [2013.05.28]: #define DISABLED {- | The Main module defining the HSBencher driver. -} module HSBencher.App (defaultMainWithBechmarks, defaultMainModifyConfig, Flag(..), all_cli_options) where ---------------------------- -- Standard library imports import Prelude hiding (log) import Control.Applicative import Control.Concurrent import Control.Monad.Reader import Control.Exception (evaluate, handle, SomeException, throwTo, fromException, AsyncException(ThreadKilled)) import Debug.Trace import Data.Time.Clock (getCurrentTime, diffUTCTime) import Data.Time.Clock.POSIX (utcTimeToPOSIXSeconds) import Data.Maybe (isJust, fromJust, catMaybes) import qualified Data.Map as M import Data.Word (Word64) import Data.IORef import Data.List (intercalate, sortBy, intersperse, isPrefixOf, tails, isInfixOf, delete) import qualified Data.Set as Set import Data.Version (versionBranch, versionTags) import GHC.Conc (getNumProcessors) import Numeric (showFFloat) import System.Console.GetOpt (getOpt, ArgOrder(Permute), OptDescr(Option), ArgDescr(..), usageInfo) import System.Environment (getArgs, getEnv, getEnvironment) import System.Directory import System.Posix.Env (setEnv) import System.Random (randomIO) import System.Exit import System.FilePath (splitFileName, (), takeDirectory) import System.Process (system, waitForProcess, getProcessExitCode, runInteractiveCommand, createProcess, CreateProcess(..), CmdSpec(..), StdStream(..), readProcess) import System.IO (Handle, hPutStrLn, stderr, openFile, hClose, hGetContents, hIsEOF, hGetLine, IOMode(..), BufferMode(..), hSetBuffering) import System.IO.Unsafe (unsafePerformIO) import qualified Data.ByteString.Char8 as B import Text.Printf import Text.PrettyPrint.GenericPretty (Out(doc)) -- import Text.PrettyPrint.HughesPJ (nest) ---------------------------- -- Additional libraries: import qualified System.IO.Streams as Strm import qualified System.IO.Streams.Concurrent as Strm import qualified System.IO.Streams.Process as Strm import qualified System.IO.Streams.Combinators as Strm import UI.HydraPrint (hydraPrint, HydraConf(..), DeleteWinWhen(..), defaultHydraConf, hydraPrintStatic) import Scripting.Parallel.ThreadPool (parForM) #ifdef FUSION_TABLES import HSBencher.Fusion import Network.Google.OAuth2 (getCachedTokens, refreshTokens, OAuth2Client(..), OAuth2Tokens(..)) import Network.Google.FusionTables (createTable, listTables, listColumns, insertRows, TableId, CellType(..), TableMetadata(..)) #endif ---------------------------- -- Self imports: import HSBencher.Utils import HSBencher.Logging import HSBencher.Types import HSBencher.Config import HSBencher.Methods import HSBencher.MeasureProcess import Paths_hsbencher (version) -- Thanks, cabal! ---------------------------------------------------------------------------------------------------- -- | USAGE usageStr :: String usageStr = unlines $ [ " ", " Many of these options can redundantly be set either when the benchmark driver is run,", " or in the benchmark descriptions themselves. E.g. --with-ghc is just for convenience.", "\n ENV VARS:", " These environment variables control the behavior of the benchmark script:", "", #ifndef DISABLED " SHORTRUN=1 to get a shorter run for testing rather than benchmarking.", "", " THREADS=\"1 2 4\" to run with # threads = 1, 2, or 4.", "", " BENCHLIST=foo.txt to select the benchmarks and their arguments", " (uses benchlist.txt by default)", "", " SCHEDS=\"Trace Direct Sparks\" -- Restricts to a subset of schedulers.", "", " GENERIC=1 to go through the generic (type class) monad par", " interface instead of using each scheduler directly", "", " KEEPGOING=1 to keep going after the first error.", "", " TRIALS=N to control the number of times each benchmark is run.", "", #endif #ifdef FUSION_TABLES " HSBENCHER_GOOGLE_CLIENTID, HSBENCHER_GOOGLE_CLIENTSECRET: if FusionTable upload is enabled, the", " client ID and secret can be provided by env vars OR command line options. ", #endif " ", #ifndef DISABLED " ENVS='[[(\"KEY1\", \"VALUE1\")], [(\"KEY1\", \"VALUE2\")]]' to set", " different configurations of environment variables to be set *at", " runtime*. Useful for NUMA_TOPOLOGY, for example. Note that this", " can change multiple env variables in multiple distinct", " configurations, with each configuration tested separately.", "", " Additionally, this script will propagate any flags placed in the", " environment variables $GHC_FLAGS and $GHC_RTS. It will also use", " $GHC or $CABAL, if available, to select the executable paths.", " ", #endif " Command line arguments take precedence over environment variables, if both apply." ] ---------------------------------------------------------------------------------------------------- gc_stats_flag :: String gc_stats_flag = " -s " -- gc_stats_flag = " --machine-readable -t " exedir :: String exedir = "./bin" -------------------------------------------------------------------------------- -- | Remove RTS options that are specific to -threaded mode. pruneThreadedOpts :: [String] -> [String] pruneThreadedOpts = filter (`notElem` ["-qa", "-qb"]) -------------------------------------------------------------------------------- -- Error handling -------------------------------------------------------------------------------- path :: [FilePath] -> FilePath path [] = "" path ls = foldl1 () ls -------------------------------------------------------------------------------- -- Compiling Benchmarks -------------------------------------------------------------------------------- -- | Build a single benchmark in a single configuration. compileOne :: (Int,Int) -> Benchmark DefaultParamMeaning -> [(DefaultParamMeaning,ParamSetting)] -> BenchM BuildResult compileOne (iterNum,totalIters) Benchmark{target=testPath,cmdargs} cconf = do Config{shortrun, resultsOut, stdOut, buildMethods, pathRegistry, doClean} <- ask let (diroffset,testRoot) = splitFileName testPath flags = toCompileFlags cconf paths = toCmdPaths cconf bldid = makeBuildID testPath flags log "\n--------------------------------------------------------------------------------" log$ " Compiling Config "++show iterNum++" of "++show totalIters++ ": "++testRoot++" (args \""++unwords cmdargs++"\") confID "++ show bldid log "--------------------------------------------------------------------------------\n" matches <- lift$ filterM (fmap isJust . (`filePredCheck` testPath) . canBuild) buildMethods when (null matches) $ do logT$ "ERROR, no build method matches path: "++testPath lift exitFailure logT$ printf "Found %d methods that can handle %s: %s" (length matches) testPath (show$ map methodName matches) let BuildMethod{methodName,clean,compile,concurrentBuild} = head matches when (length matches > 1) $ logT$ " WARNING: resolving ambiguity, picking method: "++methodName let pathR = (M.union (M.fromList paths) pathRegistry) when doClean $ clean pathR bldid testPath -- Prefer the benchmark-local path definitions: x <- compile pathR bldid flags testPath logT$ "Compile finished, result: "++ show x return x -------------------------------------------------------------------------------- -- Running Benchmarks -------------------------------------------------------------------------------- -- If the benchmark has already been compiled doCompile=False can be -- used to skip straight to the execution. runOne :: (Int,Int) -> BuildID -> BuildResult -> Benchmark DefaultParamMeaning -> [(DefaultParamMeaning,ParamSetting)] -> BenchM () runOne (iterNum, totalIters) bldid bldres Benchmark{target=testPath, cmdargs=args_} runconfig = do let numthreads = foldl (\ acc (x,_) -> case x of Threads n -> n _ -> acc) 0 runconfig sched = foldl (\ acc (x,_) -> case x of Variant s -> s _ -> acc) "none" runconfig let runFlags = toRunFlags runconfig envVars = toEnvVars runconfig conf@Config{..} <- ask ---------------------------------------- -- (1) Gather contextual information ---------------------------------------- let args = if shortrun then shortArgs args_ else args_ fullargs = if argsBeforeFlags then args ++ runFlags else runFlags ++ args testRoot = fetchBaseName testPath log$ "\n--------------------------------------------------------------------------------" log$ " Running Config "++show iterNum++" of "++show totalIters ++": "++testPath -- " threads "++show numthreads++" (Env="++show envVars++")" log$ nest 3 $ show$ doc$ map snd runconfig log$ "--------------------------------------------------------------------------------\n" pwd <- lift$ getCurrentDirectory logT$ "(In directory "++ pwd ++")" logT$ "Next run 'who', reporting users other than the current user. This may help with detectivework." -- whos <- lift$ run "who | awk '{ print $1 }' | grep -v $USER" whos <- lift$ runLines$ "who" let whos' = map ((\ (h:_)->h) . words) whos user <- lift$ getEnv "USER" logT$ "Who_Output: "++ unwords (filter (/= user) whos') -- If numthreads == 0, that indicates a serial run: ---------------------------------------- -- (2) Now execute N trials: ---------------------------------------- -- (One option woud be dynamic feedback where if the first one -- takes a long time we don't bother doing more trials.) nruns <- forM [1..trials] $ \ i -> do log$ printf " Running trial %d of %d" i trials log " ------------------------" let (timeHarvest,ph) = harvesters prodHarvest = case ph of Nothing -> nullHarvester Just h -> h doMeasure cmddescr = do SubProcess {wait,process_out,process_err} <- lift$ measureProcess timeHarvest prodHarvest cmddescr err2 <- lift$ Strm.map (B.append " [stderr] ") process_err both <- lift$ Strm.concurrentMerge [process_out, err2] mv <- echoStream (not shortrun) both lift$ takeMVar mv x <- lift wait return x case bldres of StandAloneBinary binpath -> do -- NOTE: For now allowing rts args to include things like "+RTS -RTS", i.e. multiple tokens: let command = binpath++" "++unwords fullargs logT$ " Executing command: " ++ command doMeasure CommandDescr{ command=ShellCommand command, envVars, timeout=Just defaultTimeout, workingDir=Nothing } RunInPlace fn -> do -- logT$ " Executing in-place benchmark run." let cmd = fn fullargs envVars logT$ " Generated in-place run command: "++show cmd doMeasure cmd ------------------------------------------ -- (3) Produce output to the right places: ------------------------------------------ (t1,t2,t3,p1,p2,p3) <- if not (all didComplete nruns) then do log $ "\n >>> MIN/MEDIAN/MAX (TIME,PROD) -- got ERRORS: " ++show nruns return ("","","","","","") else do -- Extract the min, median, and max: let sorted = sortBy (\ a b -> compare (realtime a) (realtime b)) nruns minR = head sorted maxR = last sorted medianR = sorted !! (length sorted `quot` 2) let ts@[t1,t2,t3] = map (\x -> showFFloat Nothing x "") [realtime minR, realtime medianR, realtime maxR] prods@[p1,p2,p3] = map mshow [productivity minR, productivity medianR, productivity maxR] mshow Nothing = "" mshow (Just x) = showFFloat (Just 2) x "" let pads n s = take (max 1 (n - length s)) $ repeat ' ' padl n x = pads n x ++ x padr n x = x ++ pads n x -- These are really (time,prod) tuples, but a flat list of -- scalars is simpler and readable by gnuplot: formatted = (padl 15$ unwords $ ts) ++" "++ unwords prods -- prods may be empty! log $ "\n >>> MIN/MEDIAN/MAX (TIME,PROD) " ++ formatted logOn [ResultsFile]$ printf "%s %s %s %s %s" (padr 35 testRoot) (padr 20$ intercalate "_" args) (padr 8$ sched) (padr 3$ show numthreads) formatted let result = emptyBenchmarkResult { _PROGNAME = testRoot , _VARIANT = sched , _ARGS = args , _THREADS = numthreads , _MINTIME = realtime minR , _MEDIANTIME = realtime medianR , _MAXTIME = realtime maxR , _MINTIME_PRODUCTIVITY = productivity minR , _MEDIANTIME_PRODUCTIVITY = productivity medianR , _MAXTIME_PRODUCTIVITY = productivity maxR , _ALLTIMES = unwords$ map (show . realtime) nruns , _TRIALS = trials } result' <- liftIO$ augmentResultWithConfig conf result #ifdef FUSION_TABLES when doFusionUpload $ uploadBenchResult result' #endif return (t1,t2,t3,p1,p2,p3) return () -------------------------------------------------------------------------------- -- TODO: Remove this hack. whichVariant :: String -> String whichVariant "benchlist.txt" = "desktop" whichVariant "benchlist_server.txt" = "server" whichVariant "benchlist_laptop.txt" = "laptop" whichVariant _ = "unknown" -- | Write the results header out stdout and to disk. printBenchrunHeader :: BenchM () printBenchrunHeader = do Config{trials, maxthreads, pathRegistry, logOut, resultsOut, stdOut, benchversion, shortrun, gitInfo=(branch,revision,depth) } <- ask liftIO $ do -- let (benchfile, ver) = benchversion let ls :: [IO String] ls = [ e$ "# TestName Variant NumThreads MinTime MedianTime MaxTime Productivity1 Productivity2 Productivity3" , e$ "# " , e$ "# `date`" , e$ "# `uname -a`" , e$ "# Ran by: `whoami` " , e$ "# Determined machine to have "++show maxthreads++" hardware threads." , e$ "# " , e$ "# Running each test for "++show trials++" trial(s)." -- , e$ "# Benchmarks_File: " ++ benchfile -- , e$ "# Benchmarks_Variant: " ++ if shortrun then "SHORTRUN" else whichVariant benchfile -- , e$ "# Benchmarks_Version: " ++ show ver , e$ "# Git_Branch: " ++ branch , e$ "# Git_Hash: " ++ revision , e$ "# Git_Depth: " ++ show depth -- , e$ "# Using the following settings from environment variables:" -- , e$ "# ENV BENCHLIST=$BENCHLIST" -- , e$ "# ENV THREADS= $THREADS" -- , e$ "# ENV TRIALS= $TRIALS" -- , e$ "# ENV SHORTRUN= $SHORTRUN" -- , e$ "# ENV KEEPGOING= $KEEPGOING" -- , e$ "# ENV GHC= $GHC" -- , e$ "# ENV GHC_FLAGS= $GHC_FLAGS" -- , e$ "# ENV GHC_RTS= $GHC_RTS" -- , e$ "# ENV ENVS= $ENVS" , e$ "# Path registry: "++show pathRegistry ] ls' <- sequence ls forM_ ls' $ \line -> do Strm.write (Just$ B.pack line) resultsOut Strm.write (Just$ B.pack line) logOut Strm.write (Just$ B.pack line) stdOut return () where -- This is a hack for shell expanding inside a string: e :: String -> IO String e s = runSL ("echo \""++s++"\"") -- readCommand ("echo \""++s++"\"") -- readProcess "echo" ["\""++s++"\""] "" ---------------------------------------------------------------------------------------------------- -- Main Script ---------------------------------------------------------------------------------------------------- -- | TODO: Eventually this will be parameterized. defaultMain :: IO () defaultMain = do -- benchF = get "BENCHLIST" "benchlist.txt" -- putStrLn$ hsbencher_tag ++ " Reading benchmark list from file: " error "FINISHME: defaultMain requires reading benchmark list from a file. Implement it!" -- defaultMainWithBechmarks undefined -- | In this version, user provides a list of benchmarks to run, explicitly. defaultMainWithBechmarks :: [Benchmark DefaultParamMeaning] -> IO () defaultMainWithBechmarks benches = do defaultMainModifyConfig (\ conf -> conf{ benchlist=benches }) -- | An even more flexible version allows the user to install a hook which modifies -- the configuration just before bencharking begins. All trawling of the execution -- environment (command line args, environment variables) happens BEFORE the user -- sees the configuration. defaultMainModifyConfig :: (Config -> Config) -> IO () defaultMainModifyConfig modConfig = do id <- myThreadId writeIORef main_threadid id cli_args <- getArgs let (options,args,errs) = getOpt Permute (concat$ map snd all_cli_options) cli_args let recomp = NoRecomp `notElem` options when (ShowVersion `elem` options) $ do putStrLn$ "hsbencher version "++ (concat$ intersperse "." $ map show $ versionBranch version) ++ (unwords$ versionTags version) exitSuccess when (not (null errs && null args) || ShowHelp `elem` options) $ do unless (ShowHelp `elem` options) $ putStrLn$ "Errors parsing command line options:" mapM_ (putStr . (" "++)) errs putStrLn$ "\nUSAGE: [set ENV VARS] "++my_name++" [CMDLN OPTIONS]" mapM putStr (map (uncurry usageInfo) all_cli_options) putStrLn$ usageStr if (ShowHelp `elem` options) then exitSuccess else exitFailure conf0 <- getConfig options [] let conf1@Config{envs,benchlist,stdOut,threadsettings} = modConfig conf0 hasMakefile <- doesFileExist "Makefile" cabalFile <- runLines "ls *.cabal" let hasCabalFile = (cabalFile /= []) && not (NoCabal `elem` options) rootDir <- getCurrentDirectory runReaderT (do logT$"Beginning benchmarking, root directory: "++rootDir let globalBinDir = rootDir "bin" when recomp $ do logT$"Clearing any preexisting files in ./bin/" lift$ do -- runSimple "rm -f ./bin/*" -- Yes... it's posix dependent. But right now I don't see a good way to -- delete the contents a dir without (1) following symlinks or (2) assuming -- either the unix package or unix shell support (rm). --- Ok, what the heck, deleting recursively: dde <- doesDirectoryExist globalBinDir when dde $ removeDirectoryRecursive globalBinDir lift$ createDirectoryIfMissing True globalBinDir logT "Writing header for result data file:" printBenchrunHeader unless recomp $ log "[!!!] Skipping benchmark recompilation!" let benches' = map (\ b -> b { configs= compileOptsOnly (configs b) }) benchlist cccfgs = map (enumerateBenchSpace . configs) benches' -- compile configs cclengths = map length cccfgs totalcomps = sum cclengths log$ "\n--------------------------------------------------------------------------------" logT$ "Running all benchmarks for all settings ..." logT$ "Compiling: "++show totalcomps++" total configurations of "++ show (length benchlist)++" benchmarks" let indent n str = unlines $ map (replicate n ' ' ++) $ lines str printloop _ [] = return () printloop mp (Benchmark{target,cmdargs,configs} :tl) = do log$ " * Benchmark/args: "++target++" "++show cmdargs case M.lookup configs mp of Nothing -> log$ indent 4$ show$ doc configs Just trg0 -> log$ " ...same config space as "++show trg0 printloop (M.insertWith (\ _ x -> x) configs target mp) tl -- log$ "Benchmarks/compile options: "++show (doc benches') printloop M.empty benchlist log$ "--------------------------------------------------------------------------------" if ParBench `elem` options then do unless rtsSupportsBoundThreads $ error (my_name++" was NOT compiled with -threaded. Can't do --par.") {- -------------------------------------------------------------------------------- -- Parallel version: numProcs <- liftIO getNumProcessors lift$ putStrLn$ "[!!!] Compiling in Parallel, numProcessors="++show numProcs++" ... " when recomp $ liftIO$ do when hasCabalFile (error "Currently, cabalized build does not support parallelism!") (strms,barrier) <- parForM numProcs (zip [1..] pruned) $ \ outStrm (confnum,bench) -> do outStrm' <- Strm.unlines outStrm let conf' = conf { stdOut = outStrm' } runReaderT (compileOne bench (confnum,length pruned)) conf' return () catParallelOutput strms stdOut res <- barrier return () Config{shortrun,doFusionUpload} <- ask if shortrun && not doFusionUpload then liftIO$ do putStrLn$ "[!!!] Running in Parallel..." (strms,barrier) <- parForM numProcs (zip [1..] pruned) $ \ outStrm (confnum,bench) -> do outStrm' <- Strm.unlines outStrm let conf' = conf { stdOut = outStrm' } runReaderT (runOne bench (confnum,totalcomps)) conf' catParallelOutput strms stdOut _ <- barrier return () else do -- Non-shortrun's NEVER run multiple benchmarks at once: forM_ (zip [1..] allruns) $ \ (confnum,bench) -> runOne bench (confnum,totalcomps) return () -} else do -------------------------------------------------------------------------------- -- Serial version: -- TODO: make this a foldlM: let allruns = map (enumerateBenchSpace . configs) benchlist allrunsLens = map length allruns totalruns = sum allrunsLens let -- Here we lazily compile benchmarks as they become required by run configurations. runloop :: Int -> M.Map BuildID (Int, Maybe BuildResult) -> M.Map FilePath BuildID -- (S.Set ParamSetting) -> [(Benchmark DefaultParamMeaning, [(DefaultParamMeaning,ParamSetting)])] -> BenchM () runloop _ _ _ [] = return () runloop !iter !board !lastConfigured (nextrun:rest) = do -- lastConfigured keeps track of what configuration was last built in -- a directory that is used for `RunInPlace` builds. let (bench,params) = nextrun ccflags = toCompileFlags params bid = makeBuildID (target bench) ccflags case M.lookup bid board of Nothing -> error$ "HSBencher: Internal error: Cannot find entry in map for build ID: "++show bid Just (ccnum, Nothing) -> do res <- compileOne (ccnum,totalcomps) bench params let board' = M.insert bid (ccnum, Just res) board lastC' = M.insert (target bench) bid lastConfigured -- runloop iter board' (nextrun:rest) runOne (iter,totalruns) bid res bench params runloop (iter+1) board' lastC' rest Just (ccnum, Just bldres) -> let proceed = do runOne (iter,totalruns) bid bldres bench params runloop (iter+1) board lastConfigured rest in case bldres of StandAloneBinary _ -> proceed RunInPlace _ -> -- Here we know that some previous compile with the same BuildID inserted this here. -- But the relevant question is whether some other config has stomped on it in the meantime. case M.lookup (target bench) lastConfigured of Nothing -> error$"HSBencher: Internal error, RunInPlace in the board but not lastConfigured!: " ++(target bench)++ " build id "++show bid Just bid2 -> if bid == bid2 then do logT$ "Skipping rebuild of in-place benchmark: "++bid proceed else runloop iter (M.insert bid (ccnum,Nothing) board) lastConfigured (nextrun:rest) initBoard _ [] acc = acc initBoard !iter ((bench,params):rest) acc = let bid = makeBuildID (target bench) $ toCompileFlags params base = fetchBaseName (target bench) dfltdest = globalBinDir base ++"_"++bid in case M.lookup bid acc of Just _ -> initBoard iter rest acc Nothing -> let elm = if recomp then (iter, Nothing) else (iter, Just (StandAloneBinary dfltdest)) in initBoard (iter+1) rest (M.insert bid elm acc) zippedruns = (concat$ zipWith (\ b cfs -> map (b,) cfs) benchlist allruns) unless recomp $ logT$ "Recompilation disabled, assuming standalone binaries are in the expected places!" runloop 1 (initBoard 1 zippedruns M.empty) M.empty zippedruns {- do Config{logOut, resultsOut, stdOut} <- ask liftIO$ Strm.write Nothing logOut liftIO$ Strm.write Nothing resultsOut -} log$ "\n--------------------------------------------------------------------------------" log " Finished with all test configurations." log$ "--------------------------------------------------------------------------------" liftIO$ exitSuccess ) conf1 -- Several different options for how to display output in parallel: catParallelOutput :: [Strm.InputStream B.ByteString] -> Strm.OutputStream B.ByteString -> IO () catParallelOutput strms stdOut = do case 4 of -- First option is to create N window panes immediately. 1 -> do hydraPrintStatic defaultHydraConf (zip (map show [1..]) strms) 2 -> do srcs <- Strm.fromList (zip (map show [1..]) strms) hydraPrint defaultHydraConf{deleteWhen=Never} srcs -- This version interleaves their output lines (ugly): 3 -> do strms2 <- mapM Strm.lines strms interleaved <- Strm.concurrentMerge strms2 Strm.connect interleaved stdOut -- This version serializes the output one worker at a time: 4 -> do strms2 <- mapM Strm.lines strms merged <- Strm.concatInputStreams strms2 -- Strm.connect (head strms) stdOut Strm.connect merged stdOut ---------------------------------------------------------------------------------------------------- -- * GENERIC HELPER ROUTINES ---------------------------------------------------------------------------------------------------- -- These should go in another module....... collapsePrefix :: String -> String -> String -> String collapsePrefix old new str = if isPrefixOf old str then new ++ drop (length old) str else str didComplete RunCompleted{} = True didComplete _ = False -- Shorthand for tagged version: logT str = log$hsbencher_tag++str hsbencher_tag = " [hsbencher] " -- Compute a cut-down version of a benchmark's args list that will do -- a short (quick) run. The way this works is that benchmarks are -- expected to run and do something quick if they are invoked with no -- arguments. (A proper benchmarking run, therefore, requires larger -- numeric arguments be supplied.) -- shortArgs :: [String] -> [String] shortArgs _ls = [] -- shortArgs [] = [] -- DISABLING: -- HOWEVER: there's a further hack here which is that leading -- non-numeric arguments are considered qualitative (e.g. "monad" vs -- "sparks") rather than quantitative and are not pruned by this -- function. -- shortArgs (h:tl) | isNumber h = [] -- | otherwise = h : shortArgs tl ---------------------------------------------------------------------------------------------------- nest :: Int -> String -> String nest n str = remlastNewline $ unlines $ map (replicate n ' ' ++) $ lines str where remlastNewline str = case reverse str of '\n':rest -> reverse rest _ -> str