@@ -1,6 +1,6 @@
11-- |
22-- Module : Streamly.Benchmark.Data.Stream.StreamK
3−-- Copyright : (c) 2018 Composewell Technologies
3+-- Copyright : (c) 2018 Harendra Kumar
44--
55-- License : BSD3
66-- Maintainer : streamly@composewell.com
@@ -8,7 +8,6 @@
88{-# LANGUAGE CPP #-}
99{-# LANGUAGE FlexibleContexts #-}
1010{-# LANGUAGE ScopedTypeVariables #-}
11−{-# OPTIONS_GHC -Wno-orphans #-}
1211
1312#ifdef __HADDOCK_VERSION__
1413#undef INSPECTION
@@ -21,23 +20,20 @@
2120
2221module Main (main) where
2322
24−#if !MIN_VERSION_base(4,18,0)
25−import Control.Applicative (liftA2)
26−#endif
2723import Control.Monad (when)
2824import Data.Maybe (isJust)
2925import System.Random (randomRIO)
3026import Prelude hiding
31− ( Foldable(..), tail, mapM_, last, map, mapM, concatMap, zipWith, init, iterate
32− , repeat, replicate
33− )
27+ (tail, mapM_, foldl, last, map, mapM, concatMap, zip, init)
3428
3529import qualified Prelude as P
3630import qualified Data.List as List
3731
38−import qualified Streamly.Internal.Data.StreamK as S
32+import qualified Streamly.Internal.Data.Stream.StreamK as S
33+import qualified Streamly.Internal.Data.Stream.Prelude as SP
34+import qualified Streamly.Internal.Data.SVar as S
3935
40−import Test.Tasty.Bench (bench, nfIO, bgroup, Benchmark, defaultMain)
36+import Gauge (bench, nfIO, bgroup, Benchmark, defaultMain)
4137
4238import Streamly.Benchmark.Common
4339
@@ -45,163 +41,106 @@ import Streamly.Benchmark.Common
4541import Test.Inspection
4642#endif
4743
48−{-
49−
50−Benchmarks that need to be added
51−
52−-- fromList
53−
54−-- bindWith
55−-- concatPairsWith
56−-- apWith
57−-- apSerial
58−-- apSerialDiscardFst
59−-- apSerialDiscardSnd
60−
61−-- the
62−-- serial
63−-- consMStream
64−-- withLocal
65−-- mfix
66−
67−-- elem
68−-- notElem
69−-- all
70−-- any
71−-- minimum
72−-- minimumBy
73−-- maximum
74−-- maximumBy
75−-- findIndices
76−-- lookup
77−-- findM
78−-- find
79−-- (!!)
80−
81−-- foldlM'
82−-- foldlT
83−-- foldlx'
84−-- foldlMx'
85−-- fold
86−
87−-- sequence
88−
89−-- foldrSM
90−-- buildS
91−-- buildM
92−-- augmentS
93−-- augmentSM
94−-- foldr
95−-- foldr1
96−-- foldrM
97−-- foldrT
98−
99−-- intersperseM
100−-- insertBy
101−-- deleteBy
102−-- reverse
103−-- mapMaybe
104−
105−-- zipWithM
106−-- mergeBy
107−-- mergeByM
108−
109−-- toStreamK (Probably can be skipped)
110−-- hoist
111−
112−-- scanlx'
113−
114−-}
44+value, value2, value3, value16, maxValue :: Int
45+value = 100000
46+value2 = round (P.fromIntegral value**(1/2::P.Double)) -- double nested loop
47+value3 = round (P.fromIntegral value**(1/3::P.Double)) -- triple nested loop
48+value16 = round (P.fromIntegral value**(1/16::P.Double)) -- triple nested loop
49+maxValue = value
50+
51+-------------------------------------------------------------------------------
52+-- Benchmark ops
53+-------------------------------------------------------------------------------
54+
55+{-# INLINE toNull #-}
56+{-# INLINE uncons #-}
57+{-# INLINE nullTail #-}
58+{-# INLINE headTail #-}
59+{-# INLINE zip #-}
60+toNull, uncons, nullTail, headTail, zip
61+ :: Monad m
62+ => Stream m Int -> m ()
63+
64+{-# INLINE toList #-}
65+toList :: Monad m => Stream m Int -> m [Int]
66+{-# INLINE foldl #-}
67+foldl :: Monad m => Stream m Int -> m Int
68+{-# INLINE last #-}
69+last :: Monad m => Stream m Int -> m (Maybe Int)
11570
11671-------------------------------------------------------------------------------
11772-- Stream generation and elimination
11873-------------------------------------------------------------------------------
11974
120−type Stream m a = S.StreamK m a
75+type Stream m a = S.Stream m a
12176
122−{-# INLINE unfoldr #-}
123−unfoldr :: Int -> Int -> Stream m Int
124−unfoldr streamLen n = S.unfoldr step n
77+{-# INLINE sourceUnfoldr #-}
78+sourceUnfoldr :: Int -> Stream m Int
79+sourceUnfoldr n = S.unfoldr step n
12580 where
12681 step cnt =
127− if cnt > n + streamLen
82+ if cnt > n + value
12883 then Nothing
12984 else Just (cnt, cnt + 1)
13085
131−{-# INLINE unfoldrM #-}
132−unfoldrM :: Monad m => Int -> Int -> Stream m Int
133−unfoldrM streamLen n = S.unfoldrMWith S.consM step n
86+{-# INLINE sourceUnfoldrN #-}
87+sourceUnfoldrN :: Int -> Int -> Stream m Int
88+sourceUnfoldrN m n = S.unfoldr step n
13489 where
13590 step cnt =
136− if cnt > n + streamLen
91+ if cnt > n + m
92+ then Nothing
93+ else Just (cnt, cnt + 1)
94+
95+{-# INLINE sourceUnfoldrM #-}
96+sourceUnfoldrM :: S.MonadAsync m => Int -> Stream m Int
97+sourceUnfoldrM n = S.unfoldrM step n
98+ where
99+ step cnt =
100+ if cnt > n + value
101+ then return Nothing
102+ else return (Just (cnt, cnt + 1))
103+
104+{-# INLINE sourceUnfoldrMN #-}
105+sourceUnfoldrMN :: S.MonadAsync m => Int -> Int -> Stream m Int
106+sourceUnfoldrMN m n = S.unfoldrM step n
107+ where
108+ step cnt =
109+ if cnt > n + m
137110 then return Nothing
138111 else return (Just (cnt, cnt + 1))
139112
140−{-# INLINE repeat #-}
141−repeat :: Int -> Int -> Stream m Int
142−repeat streamLen = S.take streamLen . S.repeat
143−
144−{-# INLINE repeatM #-}
145−repeatM :: Monad m => Int -> Int -> Stream m Int
146−repeatM streamLen = S.take streamLen . S.repeatM . return
147−
148−{-# INLINE replicate #-}
149−replicate :: Int -> Int -> Stream m Int
150−replicate = S.replicate
151−
152−{-# INLINE replicateM #-}
153−replicateM :: Monad m => Int -> Int -> Stream m Int
154−replicateM streamLen = S.replicateMWith S.consM streamLen . return
155−
156−{-# INLINE iterate #-}
157−iterate :: Int -> Int -> Stream m Int
158−iterate streamLen = S.take streamLen . S.iterate (+1)
159−
160−{-# INLINE iterateM #-}
161−iterateM :: Monad m => Int -> Int -> Stream m Int
162−iterateM streamLen = S.take streamLen . S.iterateM (return . (+1)) . return
163−
164−{-# INLINE fromFoldable #-}
165−fromFoldable :: Int -> Int -> Stream m Int
166−fromFoldable streamLen n = S.fromFoldable [n..n+streamLen]
167−
168−{-# INLINE fromFoldableM #-}
169−fromFoldableM :: Monad m => Int -> Int -> Stream m Int
170−fromFoldableM streamLen n =
171− List.foldr S.consM S.nil (Prelude.fmap return [n..n+streamLen])
172−
173−{-# INLINABLE concatMapFoldableWith #-}
174−concatMapFoldableWith :: P.Foldable f
175− => (Stream m b -> Stream m b -> Stream m b)
176− -> (a -> Stream m b)
177− -> f a
178− -> Stream m b
179−concatMapFoldableWith f g = P.foldr (f . g) S.nil
180−
181−{-# INLINE concatMapFoldableSerial #-}
182−concatMapFoldableSerial :: Int -> Int -> Stream m Int
183−concatMapFoldableSerial streamLen n =
184− concatMapFoldableWith S.append S.fromPure [n..n+streamLen]
185−
186−{-# INLINE concatMapFoldableSerialM #-}
187−concatMapFoldableSerialM :: Monad m => Int -> Int -> Stream m Int
188−concatMapFoldableSerialM streamLen n =
189− concatMapFoldableWith S.append (S.fromEffect . return) [n..n+streamLen]
113+{-# INLINE sourceFromFoldable #-}
114+sourceFromFoldable :: Int -> Stream m Int
115+sourceFromFoldable n = S.fromFoldable [n..n+value]
116+
117+{-# INLINE sourceFromFoldableM #-}
118+sourceFromFoldableM :: S.MonadAsync m => Int -> Stream m Int
119+sourceFromFoldableM n =
120+ Prelude.foldr S.consM S.nil (Prelude.fmap return [n..n+value])
121+
122+{-# INLINE sourceFoldMapWith #-}
123+sourceFoldMapWith :: Int -> Stream m Int
124+sourceFoldMapWith n = SP.foldMapWith S.serial S.yield [n..n+value]
125+
126+{-# INLINE sourceFoldMapWithM #-}
127+sourceFoldMapWithM :: Monad m => Int -> Stream m Int
128+sourceFoldMapWithM n = SP.foldMapWith S.serial (S.yieldM . return) [n..n+value]
190129
191130-------------------------------------------------------------------------------
192131-- Elimination
193132-------------------------------------------------------------------------------
194133
195−{-# INLINE drain #-}
196−drain :: Monad m => Stream m a -> m ()
197−drain = S.drain
134+{-# INLINE runStream #-}
135+runStream :: Monad m => Stream m a -> m ()
136+runStream = S.drain
137+-- runStream = S.mapM_ (\_ -> return ())
198138
199139{-# INLINE mapM_ #-}
200140mapM_ :: Monad m => Stream m a -> m ()
201141mapM_ = S.mapM_ (\_ -> return ())
202142
203−{-# INLINE uncons #-}
204−uncons :: Monad m => Stream m Int -> m ()
143+toNull = runStream
205144uncons s = do
206145 r <- S.uncons s
207146 case r of
@@ -209,238 +148,167 @@ uncons s = do
209148 Just (_, t) -> uncons t
210149
211150{-# INLINE init #-}
212−init :: Monad m => Stream m a -> m ()
151+init :: (Monad m, S.IsStream t) => t m a -> m ()
213152init s = do
214153 t <- S.init s
215154 P.mapM_ S.drain t
216155
217156{-# INLINE tail #-}
218−tail :: Monad m => Stream m a -> m ()
157+tail :: (Monad m, S.IsStream t) => t m a -> m ()
219158tail s = S.tail s >>= P.mapM_ tail
220159
221−{-# INLINE nullTail #-}
222−nullTail :: Monad m => Stream m Int -> m ()
223160nullTail s = do
224161 r <- S.null s
225162 when (not r) $ S.tail s >>= P.mapM_ nullTail
226163
227−{-# INLINE headTail #-}
228−headTail :: Monad m => Stream m Int -> m ()
229164headTail s = do
230165 h <- S.head s
231166 when (isJust h) $ S.tail s >>= P.mapM_ headTail
232167
233−{-# INLINE toList #-}
234−toList :: Monad m => Stream m Int -> m [Int]
235168toList = S.toList
236−
237−{-# INLINE foldl' #-}
238−foldl' :: Monad m => Stream m Int -> m Int
239−foldl' = S.foldl' (+) 0
240−
241−{-# INLINE last #-}
242−last :: Monad m => Stream m Int -> m (Maybe Int)
243−last = S.last
169+foldl = S.foldl' (+) 0
170+last = S.last
244171
245172-------------------------------------------------------------------------------
246173-- Transformation
247174-------------------------------------------------------------------------------
248175
176+{-# INLINE transform #-}
177+transform :: Monad m => Stream m a -> m ()
178+transform = runStream
179+
249180{-# INLINE composeN #-}
250181composeN
251182 :: Monad m
252183 => Int -> (Stream m Int -> Stream m Int) -> Stream m Int -> m ()
253184composeN n f =
254185 case n of
255− 1 -> drain . f
256− 2 -> drain . f . f
257− 3 -> drain . f . f . f
258− 4 -> drain . f . f . f . f
186+ 1 -> transform . f
187+ 2 -> transform . f . f
188+ 3 -> transform . f . f . f
189+ 4 -> transform . f . f . f . f
259190 _ -> undefined
260191
261−{-# INLINE scanl' #-}
262−scanl' :: Monad m => Int -> Stream m Int -> m ()
263−scanl' n = composeN n $ S.scanl' (+) 0
264−
192+{-# INLINE scan #-}
265193{-# INLINE map #-}
266−map :: Monad m => Int -> Stream m Int -> m ()
267−map n = composeN n $ S.map (+ 1)
268−
269194{-# INLINE fmapK #-}
270−fmapK :: Monad m => Int -> Stream m Int -> m ()
271−fmapK n = composeN n $ P.fmap (+ 1)
272−
273−{-# INLINE mapM #-}
274−mapM :: Monad m => Int -> Stream m Int -> m ()
275−mapM n = composeN n $ S.mapMWith S.consM return
276−
277−{-# INLINE mapMSerial #-}
278−mapMSerial :: Monad m => Int -> Stream m Int -> m ()
279−mapMSerial n = composeN n $ S.mapMSerial return
280−
281195{-# INLINE filterEven #-}
282−filterEven :: Monad m => Int -> Stream m Int -> m ()
283−filterEven n = composeN n $ S.filter even
284−
285196{-# INLINE filterAllOut #-}
286−filterAllOut :: Monad m => Int -> Int -> Stream m Int -> m ()
287−filterAllOut streamLen n = composeN n $ S.filter (> streamLen)
288−
289197{-# INLINE filterAllIn #-}
290−filterAllIn :: Monad m => Int -> Int -> Stream m Int -> m ()
291−filterAllIn streamLen n = composeN n $ S.filter (<= streamLen)
292−
293198{-# INLINE _takeOne #-}
294−_takeOne :: Monad m => Int -> Stream m Int -> m ()
295−_takeOne n = composeN n $ S.take 1
296−
297199{-# INLINE takeAll #-}
298−takeAll :: Monad m => Int -> Int -> Stream m Int -> m ()
299−takeAll streamLen n = composeN n $ S.take streamLen
300−
301200{-# INLINE takeWhileTrue #-}
302−takeWhileTrue :: Monad m => Int -> Int -> Stream m Int -> m ()
303−takeWhileTrue streamLen n = composeN n $ S.takeWhile (<= streamLen)
304−
305201{-# INLINE dropOne #-}
306−dropOne :: Monad m => Int -> Stream m Int -> m ()
307−dropOne n = composeN n $ S.drop 1
308−
309202{-# INLINE dropAll #-}
310−dropAll :: Monad m => Int -> Int -> Stream m Int -> m ()
311−dropAll streamLen n = composeN n $ S.drop streamLen
312−
313203{-# INLINE dropWhileTrue #-}
314−dropWhileTrue :: Monad m => Int -> Int -> Stream m Int -> m ()
315−dropWhileTrue streamLen n = composeN n $ S.dropWhile (<= streamLen)
316−
317204{-# INLINE dropWhileFalse #-}
318−dropWhileFalse :: Monad m => Int -> Stream m Int -> m ()
319−dropWhileFalse n = composeN n $ S.dropWhile (<= 1)
320−
321205{-# INLINE foldrS #-}
322−foldrS :: Monad m => Int -> Stream m Int -> m ()
323−foldrS n = composeN n $ S.foldrS S.cons S.nil
324−
325206{-# INLINE foldlS #-}
326−foldlS :: Monad m => Int -> Stream m Int -> m ()
327−foldlS n = composeN n $ S.foldlS (flip S.cons) S.nil
207+scan, map, fmapK, filterEven, filterAllOut,
208+ filterAllIn, _takeOne, takeAll, takeWhileTrue, dropAll, dropOne,
209+ dropWhileTrue, dropWhileFalse, foldrS, foldlS
210+ :: Monad m
211+ => Int -> Stream m Int -> m ()
328212
213+{-# INLINE mapM #-}
214+{-# INLINE mapMSerial #-}
329215{-# INLINE intersperse #-}
330−intersperse :: Monad m => Int -> Int -> Stream m Int -> m ()
331−intersperse streamLen n = composeN n $ S.intersperse streamLen
216+mapM, mapMSerial, intersperse
217+ :: S.MonadAsync m => Int -> Stream m Int -> m ()
218+
219+scan n = composeN n $ S.scanl' (+) 0
220+map n = composeN n $ P.fmap (+1)
221+fmapK n = composeN n $ P.fmap (+1)
222+mapM n = composeN n $ S.mapM return
223+mapMSerial n = composeN n $ S.mapMSerial return
224+filterEven n = composeN n $ S.filter even
225+filterAllOut n = composeN n $ S.filter (> maxValue)
226+filterAllIn n = composeN n $ S.filter (<= maxValue)
227+_takeOne n = composeN n $ S.take 1
228+takeAll n = composeN n $ S.take maxValue
229+takeWhileTrue n = composeN n $ S.takeWhile (<= maxValue)
230+dropOne n = composeN n $ S.drop 1
231+dropAll n = composeN n $ S.drop maxValue
232+dropWhileTrue n = composeN n $ S.dropWhile (<= maxValue)
233+dropWhileFalse n = composeN n $ S.dropWhile (<= 1)
234+foldrS n = composeN n $ S.foldrS S.cons S.nil
235+foldlS n = composeN n $ S.foldlS (flip S.cons) S.nil
236+intersperse n = composeN n $ S.intersperse maxValue
332237
333238-------------------------------------------------------------------------------
334239-- Iteration
335240-------------------------------------------------------------------------------
336241
242+iterStreamLen, maxIters :: Int
243+iterStreamLen = 10
244+maxIters = 10000
245+
337246{-# INLINE iterateSource #-}
338247iterateSource
339− :: Monad m => Int -> (Stream m Int -> Stream m Int) -> Int -> Int -> Stream m Int
340−iterateSource iterStreamLen g i n = f i (unfoldrM iterStreamLen n)
248+ :: S.MonadAsync m
249+ => (Stream m Int -> Stream m Int) -> Int -> Int -> Stream m Int
250+iterateSource g i n = f i (sourceUnfoldrMN iterStreamLen n)
341251 where
342252 f (0 :: Int) m = g m
343253 f x m = g (f (x P.- 1) m)
344254
345−-- this is quadratic
346−{-# INLINE iterateScan #-}
347−iterateScan :: Monad m => Int -> Int -> Int -> Stream m Int
348−iterateScan iterStreamLen maxIters =
349− iterateSource iterStreamLen (S.scanl' (+) 0) (maxIters `div` 10)
350−
351−-- this is quadratic
352−{-# INLINE iterateDropWhileFalse #-}
353−iterateDropWhileFalse :: Monad m => Int -> Int -> Int -> Int -> Stream m Int
354−iterateDropWhileFalse streamLen iterStreamLen maxIters =
355− iterateSource iterStreamLen (S.dropWhile (> streamLen)) (maxIters `div` 10)
356−
357255{-# INLINE iterateMapM #-}
358−iterateMapM :: Monad m => Int -> Int -> Int -> Stream m Int
359−iterateMapM iterStreamLen =
360− iterateSource iterStreamLen (S.mapMWith S.consM return)
361−
256+{-# INLINE iterateScan #-}
362257{-# INLINE iterateFilterEven #-}
363−iterateFilterEven :: Monad m => Int -> Int -> Int -> Stream m Int
364−iterateFilterEven iterStreamLen = iterateSource iterStreamLen (S.filter even)
365−
366258{-# INLINE iterateTakeAll #-}
367−iterateTakeAll :: Monad m => Int -> Int -> Int -> Int -> Stream m Int
368−iterateTakeAll streamLen iterStreamLen =
369− iterateSource iterStreamLen (S.take streamLen)
370−
371259{-# INLINE iterateDropOne #-}
372−iterateDropOne :: Monad m => Int -> Int -> Int -> Stream m Int
373−iterateDropOne iterStreamLen = iterateSource iterStreamLen (S.drop 1)
374−
260+{-# INLINE iterateDropWhileFalse #-}
375261{-# INLINE iterateDropWhileTrue #-}
376−iterateDropWhileTrue ::
377− Monad m => Int -> Int -> Int -> Int -> Stream m Int
378−iterateDropWhileTrue streamLen iterStreamLen =
379− iterateSource iterStreamLen (S.dropWhile (<= streamLen))
262+iterateMapM, iterateScan, iterateFilterEven, iterateTakeAll, iterateDropOne,
263+ iterateDropWhileFalse, iterateDropWhileTrue
264+ :: S.MonadAsync m
265+ => Int -> Stream m Int
266+
267+-- this is quadratic
268+iterateScan = iterateSource (S.scanl' (+) 0) (maxIters `div` 10)
269+iterateDropWhileFalse = iterateSource (S.dropWhile (> maxValue))
270+ (maxIters `div` 10)
271+
272+iterateMapM = iterateSource (S.mapM return) maxIters
273+iterateFilterEven = iterateSource (S.filter even) maxIters
274+iterateTakeAll = iterateSource (S.take maxValue) maxIters
275+iterateDropOne = iterateSource (S.drop 1) maxIters
276+iterateDropWhileTrue = iterateSource (S.dropWhile (<= maxValue)) maxIters
380277
381278-------------------------------------------------------------------------------
382279-- Zipping
383280-------------------------------------------------------------------------------
384281
385−{-# INLINE zipWith #-}
386−zipWith :: Monad m => Stream m Int -> m ()
387−zipWith src = drain $ S.zipWith (,) src src
388−
389−{-# INLINE zipWithM #-}
390−zipWithM :: Monad m => Stream m Int -> m ()
391−zipWithM src = drain $ S.zipWithM (curry return) src src
392−
393−{-# INLINE sortByK #-}
394−sortByK :: (a -> a -> Ordering) -> Stream m a -> Stream m a
395−sortByK f = S.mergeMapWith (S.mergeBy f) S.fromPure
396−
397−{-# INLINE sortBy #-}
398−sortBy :: Monad m => Stream m Int -> m ()
399−sortBy = drain . sortByK compare
282+zip src = transform $ S.zipWith (,) src src
400283
401284-------------------------------------------------------------------------------
402285-- Mixed Composition
403286-------------------------------------------------------------------------------
404287
405288{-# INLINE scanMap #-}
406−scanMap :: Monad m => Int -> Stream m Int -> m ()
407−scanMap n = composeN n $ S.map (subtract 1) . S.scanl' (+) 0
408−
409289{-# INLINE dropMap #-}
410−dropMap :: Monad m => Int -> Stream m Int -> m ()
411−dropMap n = composeN n $ S.map (subtract 1) . S.drop 1
412−
413290{-# INLINE dropScan #-}
414−dropScan :: Monad m => Int -> Stream m Int -> m ()
415−dropScan n = composeN n $ S.scanl' (+) 0 . S.drop 1
416−
417291{-# INLINE takeDrop #-}
418−takeDrop :: Monad m => Int -> Int -> Stream m Int -> m ()
419−takeDrop streamLen n = composeN n $ S.drop 1 . S.take streamLen
420−
421292{-# INLINE takeScan #-}
422−takeScan :: Monad m => Int -> Int -> Stream m Int -> m ()
423−takeScan streamLen n = composeN n $ S.scanl' (+) 0 . S.take streamLen
424−
425293{-# INLINE takeMap #-}
426−takeMap :: Monad m => Int -> Int -> Stream m Int -> m ()
427−takeMap streamLen n = composeN n $ S.map (subtract 1) . S.take streamLen
428−
429294{-# INLINE filterDrop #-}
430−filterDrop :: Monad m => Int -> Int -> Stream m Int -> m ()
431−filterDrop streamLen n = composeN n $ S.drop 1 . S.filter (<= streamLen)
432−
433295{-# INLINE filterTake #-}
434−filterTake :: Monad m => Int -> Int -> Stream m Int -> m ()
435−filterTake streamLen n = composeN n $ S.take streamLen . S.filter (<= streamLen)
436−
437296{-# INLINE filterScan #-}
438−filterScan :: Monad m => Int -> Stream m Int -> m ()
439−filterScan n = composeN n $ S.scanl' (+) 0 . S.filter (<= maxBound)
440−
441297{-# INLINE filterMap #-}
442−filterMap :: Monad m => Int -> Int -> Stream m Int -> m ()
443−filterMap streamLen n = composeN n $ S.map (subtract 1) . S.filter (<= streamLen)
298+scanMap, dropMap, dropScan, takeDrop, takeScan, takeMap, filterDrop,
299+ filterTake, filterScan, filterMap
300+ :: Monad m => Int -> Stream m Int -> m ()
301+
302+scanMap n = composeN n $ S.map (subtract 1) . S.scanl' (+) 0
303+dropMap n = composeN n $ S.map (subtract 1) . S.drop 1
304+dropScan n = composeN n $ S.scanl' (+) 0 . S.drop 1
305+takeDrop n = composeN n $ S.drop 1 . S.take maxValue
306+takeScan n = composeN n $ S.scanl' (+) 0 . S.take maxValue
307+takeMap n = composeN n $ S.map (subtract 1) . S.take maxValue
308+filterDrop n = composeN n $ S.drop 1 . S.filter (<= maxValue)
309+filterTake n = composeN n $ S.take maxValue . S.filter (<= maxValue)
310+filterScan n = composeN n $ S.scanl' (+) 0 . S.filter (<= maxBound)
311+filterMap n = composeN n $ S.map (subtract 1) . S.filter (<= maxValue)
444312
445313-------------------------------------------------------------------------------
446314-- ConcatMap
@@ -452,8 +320,8 @@ filterMap streamLen n = composeN n $ S.map (subtract 1) . S.filter (<= streamLen
452320concatMap :: Int -> Int -> Int -> IO ()
453321concatMap outer inner n =
454322 S.drain $ S.concatMap
455− (\_ -> unfoldrM inner n)
456− (unfoldrM outer n)
323+ (\_ -> sourceUnfoldrMN inner n)
324+ (sourceUnfoldrMN outer n)
457325
458326#ifdef INSPECTION
459327inspect $ hasNoTypeClasses 'concatMap
@@ -465,8 +333,8 @@ inspect $ hasNoTypeClasses 'concatMap
465333concatMapPure :: Int -> Int -> Int -> IO ()
466334concatMapPure outer inner n =
467335 S.drain $ S.concatMap
468− (\_ -> unfoldr inner n)
469− (unfoldr outer n)
336+ (\_ -> sourceUnfoldrN inner n)
337+ (sourceUnfoldrN outer n)
470338
471339#ifdef INSPECTION
472340inspect $ hasNoTypeClasses 'concatMapPure
@@ -477,7 +345,7 @@ inspect $ hasNoTypeClasses 'concatMapPure
477345{-# INLINE concatMapRepl #-}
478346concatMapRepl :: Int -> Int -> Int -> IO ()
479347concatMapRepl outer inner n =
480− S.drain $ S.concatMap (S.replicate inner) (unfoldrM outer n)
348+ S.drain $ S.concatMap (S.replicate inner) (sourceUnfoldrMN outer n)
481349
482350#ifdef INSPECTION
483351inspect $ hasNoTypeClasses 'concatMapRepl
@@ -489,70 +357,44 @@ inspect $ hasNoTypeClasses 'concatMapRepl
489357sourceConcatMapId :: Monad m
490358 => Int -> Int -> Stream m (Stream m Int)
491359sourceConcatMapId val n =
492− S.fromFoldable $ fmap (S.fromEffect . return) [n..n+val]
360+ S.fromFoldable $ fmap (S.yieldM . return) [n..n+val]
493361
494−{-# INLINE concatMapBySerial #-}
495−concatMapBySerial :: Int -> Int -> Int -> IO ()
496−concatMapBySerial outer inner n =
497− S.drain $ S.concatMapWith S.append
498− (unfoldrM inner)
499− (unfoldrM outer n)
362+{-# INLINE concatStreamsWith #-}
363+concatStreamsWith :: Int -> Int -> Int -> IO ()
364+concatStreamsWith outer inner n =
365+ S.drain $ S.concatMapBy S.serial
366+ (sourceUnfoldrMN inner)
367+ (sourceUnfoldrMN outer n)
500368
501369-------------------------------------------------------------------------------
502370-- Nested Composition
503371-------------------------------------------------------------------------------
504372
505−instance Monad m => Applicative (S.StreamK m) where
506− {-# INLINE pure #-}
507− pure = S.fromPure
508−
509− {-# INLINE (<*>) #-}
510− (<*>) = S.crossApply
511−
512− {-# INLINE liftA2 #-}
513− liftA2 f x = (<*>) (fmap f x)
514−
515− {-# INLINE (*>) #-}
516− (*>) = S.crossApplySnd
517−
518− {-# INLINE (<*) #-}
519− (<*) = S.crossApplyFst
520−
521−-- NOTE: even though concatMap for StreamD is 3x faster compared to StreamK,
522−-- the monad instance of StreamD is slower than StreamK after foldr/build
523−-- fusion.
524−instance Monad m => Monad (S.StreamK m) where
525− {-# INLINE return #-}
526− return = pure
527−
528− {-# INLINE (>>=) #-}
529− (>>=) = flip S.concatMap
530−
531−{-# INLINE drainApplicative #-}
532−drainApplicative :: Monad m => Stream m Int -> m ()
533−drainApplicative s = drain $ do
373+{-# INLINE toNullApNested #-}
374+toNullApNested :: Monad m => Stream m Int -> m ()
375+toNullApNested s = runStream $ do
534376 (+) <$> s <*> s
535377
536−{-# INLINE drainMonad #-}
537−drainMonad :: Monad m => Stream m Int -> m ()
538−drainMonad s = drain $ do
378+{-# INLINE toNullNested #-}
379+toNullNested :: Monad m => Stream m Int -> m ()
380+toNullNested s = runStream $ do
539381 x <- s
540382 y <- s
541383 return $ x + y
542384
543−{-# INLINE drainMonad3 #-}
544−drainMonad3 :: Monad m => Stream m Int -> m ()
545−drainMonad3 s = drain $ do
385+{-# INLINE toNullNested3 #-}
386+toNullNested3 :: Monad m => Stream m Int -> m ()
387+toNullNested3 s = runStream $ do
546388 x <- s
547389 y <- s
548390 z <- s
549391 return $ x + y + z
550392
551−{-# INLINE filterAllOutMonad #-}
552−filterAllOutMonad
393+{-# INLINE filterAllOutNested #-}
394+filterAllOutNested
553395 :: Monad m
554396 => Stream m Int -> m ()
555−filterAllOutMonad str = drain $ do
397+filterAllOutNested str = runStream $ do
556398 x <- str
557399 y <- str
558400 let s = x + y
@@ -560,11 +402,11 @@ filterAllOutMonad str = drain $ do
560402 then return s
561403 else S.nil
562404
563−{-# INLINE filterAllInMonad #-}
564−filterAllInMonad
405+{-# INLINE filterAllInNested #-}
406+filterAllInNested
565407 :: Monad m
566408 => Stream m Int -> m ()
567−filterAllInMonad str = drain $ do
409+filterAllInNested str = runStream $ do
568410 x <- str
569411 y <- str
570412 let s = x + y
@@ -576,14 +418,9 @@ filterAllInMonad str = drain $ do
576418-- Nested Composition Pure lists
577419-------------------------------------------------------------------------------
578420
579−-- There are several list benchmarks here for comparison with lists. It is easy
580−-- and convenient to see the comparisons when they are here, otherwise we'll
581−-- have to add a separate module for list benchmarks with the same names and
582−-- then add a comparison in bench.sh.
583−
584−{-# INLINE unfoldrList #-}
585−unfoldrList :: Int -> Int -> [Int]
586−unfoldrList maxval n = List.unfoldr step n
421+{-# INLINE sourceUnfoldrList #-}
422+sourceUnfoldrList :: Int -> Int -> [Int]
423+sourceUnfoldrList maxval n = List.unfoldr step n
587424 where
588425 step cnt =
589426 if cnt > n + maxval
@@ -634,301 +471,229 @@ filterAllInNestedList str = do
634471-------------------------------------------------------------------------------
635472
636473moduleName :: String
637−moduleName = "Data.StreamK"
638−
639−o_1_space_generation :: Int -> Benchmark
640−o_1_space_generation streamLen =
641− bgroup "generation"
642− [ benchFold "unfoldr" drain (unfoldr streamLen)
643− , benchFold "unfoldrM" drain (unfoldrM streamLen)
644− , benchFold "repeat" drain (repeat streamLen)
645− , benchFold "repeatM" drain (repeatM streamLen)
646− , benchFold "replicate" drain (replicate streamLen)
647− , benchFold "replicateM" drain (replicateM streamLen)
648− , benchFold "iterate" drain (iterate streamLen)
649− , benchFold "iterateM" drain (iterateM streamLen)
650−
651− , benchFold "fromFoldable" drain (fromFoldable streamLen)
652− , benchFold "fromFoldableM" drain (fromFoldableM streamLen)
474+moduleName = "Data.Stream.StreamK"
475+
476+o_1_space :: [Benchmark]
477+o_1_space =
478+ [ bgroup (o_1_space_prefix moduleName)
479+ [ bgroup "generation"
480+ [ benchFold "unfoldr" toNull sourceUnfoldr
481+ , benchFold "unfoldrM" toNull sourceUnfoldrM
482+
483+ , benchFold "fromFoldable" toNull sourceFromFoldable
484+ , benchFold "fromFoldableM" toNull sourceFromFoldableM
653485
654486 -- appends
655− , benchFold "concatMapFoldableWith" drain (concatMapFoldableSerial streamLen)
656− , benchFold "concatMapFoldableWithM" drain (concatMapFoldableSerialM streamLen)
487+ , benchFold "foldMapWith" toNull sourceFoldMapWith
488+ , benchFold "foldMapWithM" toNull sourceFoldMapWithM
657489 ]
658−
659−o_1_space_elimination :: Int -> Benchmark
660−o_1_space_elimination streamLen =
661− bgroup "elimination"
662− [ benchFold "toNull" drain (unfoldrM streamLen)
663− , benchFold "mapM_" mapM_ (unfoldrM streamLen)
664− , benchFold "uncons" uncons (unfoldrM streamLen)
665− , benchFold "init" init (unfoldrM streamLen)
666− , benchFold "foldl'" foldl' (unfoldrM streamLen)
667− , benchFold "last" last (unfoldrM streamLen)
490+ , bgroup "elimination"
491+ [ benchFold "toNull" toNull sourceUnfoldrM
492+ , benchFold "mapM_" mapM_ sourceUnfoldrM
493+ , benchFold "uncons" uncons sourceUnfoldrM
494+ , benchFold "init" init sourceUnfoldrM
495+ , benchFold "foldl'" foldl sourceUnfoldrM
496+ , benchFold "last" last sourceUnfoldrM
668497 ]
669−
670−o_1_space_nested :: Int -> Benchmark
671−o_1_space_nested streamLen =
672− bgroup "nested"
673− [ benchFold "drainApplicative" drainApplicative (unfoldrM streamLen2)
674− , benchFold "drainMonad" drainMonad (unfoldrM streamLen2)
675− , benchFold "drainMonad3" drainMonad3 (unfoldrM streamLen3)
676− , benchFold "filterAllInMonad" filterAllInMonad (unfoldrM streamLen2)
677− , benchFold "filterAllOutMonad" filterAllOutMonad (unfoldrM streamLen2)
678− , benchFold "drainApplicative (pure)" drainApplicative (unfoldr streamLen2)
679− , benchFold "drainMonad (pure)" drainMonad (unfoldr streamLen2)
680− , benchFold "drainMonad3 (pure)" drainMonad3 (unfoldr streamLen3)
681− , benchFold "filterAllInMonad (pure)" filterAllInMonad (unfoldr streamLen2)
682− , benchFold "filterAllOutMonad (pure)" filterAllOutMonad (unfoldr streamLen2)
498+ , bgroup "nested"
499+ [ benchFold "toNullAp" toNullApNested (sourceUnfoldrMN value2)
500+ , benchFold "toNull" toNullNested (sourceUnfoldrMN value2)
501+ , benchFold "toNull3" toNullNested3 (sourceUnfoldrMN value3)
502+ , benchFold "filterAllIn" filterAllInNested (sourceUnfoldrMN value2)
503+ , benchFold "filterAllOut" filterAllOutNested (sourceUnfoldrMN value2)
504+ , benchFold "toNullApPure" toNullApNested (sourceUnfoldrN value2)
505+ , benchFold "toNullPure" toNullNested (sourceUnfoldrN value2)
506+ , benchFold "toNull3Pure" toNullNested3 (sourceUnfoldrN value3)
507+ , benchFold "filterAllInPure" filterAllInNested (sourceUnfoldrN value2)
508+ , benchFold "filterAllOutPure" filterAllOutNested (sourceUnfoldrN value2)
683509 ]
684− where
685− streamLen2 = round (P.fromIntegral streamLen**(1/2::P.Double)) -- double nested loop
686− streamLen3 = round (P.fromIntegral streamLen**(1/3::P.Double)) -- triple nested loop
687−
688−o_1_space_transformation :: Int -> Benchmark
689−o_1_space_transformation streamLen =
690− bgroup "transformation"
691− [ benchFold "foldrS" (foldrS 1) (unfoldrM streamLen)
692− , benchFold "scanl'" (scanl' 1) (unfoldrM streamLen)
693− , benchFold "map" (map 1) (unfoldrM streamLen)
694− , benchFold "fmap" (fmapK 1) (unfoldrM streamLen)
695− , benchFold "mapM" (mapM 1) (unfoldrM streamLen)
696− , benchFold "mapMSerial" (mapMSerial 1) (unfoldrM streamLen)
510+ , bgroup "transformation"
511+ [ benchFold "foldrS" (foldrS 1) sourceUnfoldrM
512+ , benchFold "scan" (scan 1) sourceUnfoldrM
513+ , benchFold "map" (map 1) sourceUnfoldrM
514+ , benchFold "fmap" (fmapK 1) sourceUnfoldrM
515+ , benchFold "mapM" (mapM 1) sourceUnfoldrM
516+ , benchFold "mapMSerial" (mapMSerial 1) sourceUnfoldrM
697517 ]
698−
699−o_1_space_transformationX4 :: Int -> Benchmark
700−o_1_space_transformationX4 streamLen =
701− bgroup "transformationX4"
702− [ benchFold "scanl'" (scanl' 4) (unfoldrM streamLen)
703− , benchFold "map" (map 4) (unfoldrM streamLen)
704− , benchFold "fmap" (fmapK 4) (unfoldrM streamLen)
705− , benchFold "mapM" (mapM 4) (unfoldrM streamLen)
706− , benchFold "mapMSerial" (mapMSerial 4) (unfoldrM streamLen)
518+ , bgroup "transformationX4"
519+ [ benchFold "scan" (scan 4) sourceUnfoldrM
520+ , benchFold "map" (map 4) sourceUnfoldrM
521+ , benchFold "fmap" (fmapK 4) sourceUnfoldrM
522+ , benchFold "mapM" (mapM 4) sourceUnfoldrM
523+ , benchFold "mapMSerial" (mapMSerial 4) sourceUnfoldrM
707524 -- XXX this is horribly slow
708− -- , benchFold "concatMap" (concatMap 4) (unfoldrM streamLen16)
525+ -- , benchFold "concatMap" (concatMap 4) (sourceUnfoldrMN value16)
709526 ]
710−
711−o_1_space_concat :: Int -> Benchmark
712−o_1_space_concat streamLen =
713− bgroup "concat"
527+ , bgroup "concat"
714528 [ benchIOSrc1 "concatMapPure (n of 1)"
715− (concatMapPure streamLen 1)
529+ (concatMapPure value 1)
716530 , benchIOSrc1 "concatMapPure (sqrt n of sqrt n)"
717− (concatMapPure streamLen2 streamLen2)
531+ (concatMapPure value2 value2)
718532 , benchIOSrc1 "concatMapPure (1 of n)"
719− (concatMapPure 1 streamLen)
533+ (concatMapPure 1 value)
720534
721535 , benchIOSrc1 "concatMap (n of 1)"
722− (concatMap streamLen 1)
536+ (concatMap value 1)
723537 , benchIOSrc1 "concatMap (sqrt n of sqrt n)"
724− (concatMap streamLen2 streamLen2)
538+ (concatMap value2 value2)
725539 , benchIOSrc1 "concatMap (1 of n)"
726− (concatMap 1 streamLen)
540+ (concatMap 1 value)
727541
728542 , benchIOSrc1 "concatMapRepl (sqrt n of sqrt n)"
729− (concatMapRepl streamLen2 streamLen2)
543+ (concatMapRepl value2 value2)
730544
731− -- This is for comparison with concatMapFoldableWith
545+ -- This is for comparison with foldMapWith
732546 , benchIOSrc1 "concatMapWithId (n of 1) (fromFoldable)"
733− (S.drain
734− . S.concatMapWith S.append id
735− . sourceConcatMapId streamLen)
736−
737− , benchIOSrc1 "concatMapBy serial (n of 1)"
738− (concatMapBySerial streamLen 1)
739− , benchIOSrc1 "concatMapBy serial (sqrt n of sqrt n)"
740− (concatMapBySerial streamLen2 streamLen2)
741− , benchIOSrc1 "concatMapBy serial (1 of n)"
742− (concatMapBySerial 1 streamLen)
743− , benchFold "sortBy" sortBy (unfoldrM streamLen)
547+ (S.drain . S.concatMapBy S.serial id . sourceConcatMapId value)
548+
549+ , benchIOSrc1 "concatMapWith (n of 1)"
550+ (concatStreamsWith value 1)
551+ , benchIOSrc1 "concatMapWith (sqrt n of sqrt n)"
552+ (concatStreamsWith value2 value2)
553+ , benchIOSrc1 "concatMapWith (1 of n)"
554+ (concatStreamsWith 1 value)
744555 ]
745− where
746− streamLen2 = round (P.fromIntegral streamLen**(1/2::P.Double)) -- double nested loop
747−
748−o_1_space_filtering :: Int -> Benchmark
749−o_1_space_filtering streamLen =
750− bgroup "filtering"
751− [ benchFold "filter-even" (filterEven 1) (unfoldrM streamLen)
752− , benchFold "filter-all-out" (filterAllOut streamLen 1) (unfoldrM streamLen)
753− , benchFold "filter-all-in" (filterAllIn streamLen 1) (unfoldrM streamLen)
754− , benchFold "take-all" (takeAll streamLen 1) (unfoldrM streamLen)
755− , benchFold "takeWhile-true" (takeWhileTrue streamLen 1) (unfoldrM streamLen)
756− , benchFold "drop-one" (dropOne 1) (unfoldrM streamLen)
757− , benchFold "drop-all" (dropAll streamLen 1) (unfoldrM streamLen)
758− , benchFold "dropWhile-true" (dropWhileTrue streamLen 1) (unfoldrM streamLen)
759− , benchFold "dropWhile-false" (dropWhileFalse 1) (unfoldrM streamLen)
556+ , bgroup "filtering"
557+ [ benchFold "filter-even" (filterEven 1) sourceUnfoldrM
558+ , benchFold "filter-all-out" (filterAllOut 1) sourceUnfoldrM
559+ , benchFold "filter-all-in" (filterAllIn 1) sourceUnfoldrM
560+ , benchFold "take-all" (takeAll 1) sourceUnfoldrM
561+ , benchFold "takeWhile-true" (takeWhileTrue 1) sourceUnfoldrM
562+ , benchFold "drop-one" (dropOne 1) sourceUnfoldrM
563+ , benchFold "drop-all" (dropAll 1) sourceUnfoldrM
564+ , benchFold "dropWhile-true" (dropWhileTrue 1) sourceUnfoldrM
565+ , benchFold "dropWhile-false" (dropWhileFalse 1) sourceUnfoldrM
760566 ]
761−
762−o_1_space_filteringX4 :: Int -> Benchmark
763−o_1_space_filteringX4 streamLen =
764− bgroup "filteringX4"
765− [ benchFold "filter-even" (filterEven 4) (unfoldrM streamLen)
766− , benchFold "filter-all-out" (filterAllOut streamLen 4) (unfoldrM streamLen)
767− , benchFold "filter-all-in" (filterAllIn streamLen 4) (unfoldrM streamLen)
768− , benchFold "take-all" (takeAll streamLen 4) (unfoldrM streamLen)
769− , benchFold "takeWhile-true" (takeWhileTrue streamLen 4) (unfoldrM streamLen)
770− , benchFold "drop-one" (dropOne 4) (unfoldrM streamLen)
771− , benchFold "drop-all" (dropAll streamLen 4) (unfoldrM streamLen)
772− , benchFold "dropWhile-true" (dropWhileTrue streamLen 4) (unfoldrM streamLen)
773− , benchFold "dropWhile-false" (dropWhileFalse 4) (unfoldrM streamLen)
567+ , bgroup "filteringX4"
568+ [ benchFold "filter-even" (filterEven 4) sourceUnfoldrM
569+ , benchFold "filter-all-out" (filterAllOut 4) sourceUnfoldrM
570+ , benchFold "filter-all-in" (filterAllIn 4) sourceUnfoldrM
571+ , benchFold "take-all" (takeAll 4) sourceUnfoldrM
572+ , benchFold "takeWhile-true" (takeWhileTrue 4) sourceUnfoldrM
573+ , benchFold "drop-one" (dropOne 4) sourceUnfoldrM
574+ , benchFold "drop-all" (dropAll 4) sourceUnfoldrM
575+ , benchFold "dropWhile-true" (dropWhileTrue 4) sourceUnfoldrM
576+ , benchFold "dropWhile-false" (dropWhileFalse 4) sourceUnfoldrM
774577 ]
775−
776−o_1_space_zipping :: Int -> Benchmark
777−o_1_space_zipping streamLen =
778− bgroup "zipping"
779− [ benchFold "zipWith" zipWith (unfoldrM streamLen)
780− , benchFold "zipWithM" zipWithM (unfoldrM streamLen)
578+ , bgroup "zipping"
579+ [ benchFold "zip" zip sourceUnfoldrM
781580 ]
782−
783−o_1_space_mixed :: Int -> Benchmark
784−o_1_space_mixed streamLen =
785− bgroup "mixed"
786− [ benchFold "scan-map" (scanMap 1) (unfoldrM streamLen)
787− , benchFold "drop-map" (dropMap 1) (unfoldrM streamLen)
788− , benchFold "drop-scan" (dropScan 1) (unfoldrM streamLen)
789− , benchFold "take-drop" (takeDrop streamLen 1) (unfoldrM streamLen)
790− , benchFold "take-scan" (takeScan streamLen 1) (unfoldrM streamLen)
791− , benchFold "take-map" (takeMap streamLen 1) (unfoldrM streamLen)
792− , benchFold "filter-drop" (filterDrop streamLen 1) (unfoldrM streamLen)
793− , benchFold "filter-take" (filterTake streamLen 1) (unfoldrM streamLen)
794− , benchFold "filter-scan" (filterScan 1) (unfoldrM streamLen)
795− , benchFold "filter-map" (filterMap streamLen 1) (unfoldrM streamLen)
581+ , bgroup "mixed"
582+ [ benchFold "scan-map" (scanMap 1) sourceUnfoldrM
583+ , benchFold "drop-map" (dropMap 1) sourceUnfoldrM
584+ , benchFold "drop-scan" (dropScan 1) sourceUnfoldrM
585+ , benchFold "take-drop" (takeDrop 1) sourceUnfoldrM
586+ , benchFold "take-scan" (takeScan 1) sourceUnfoldrM
587+ , benchFold "take-map" (takeMap 1) sourceUnfoldrM
588+ , benchFold "filter-drop" (filterDrop 1) sourceUnfoldrM
589+ , benchFold "filter-take" (filterTake 1) sourceUnfoldrM
590+ , benchFold "filter-scan" (filterScan 1) sourceUnfoldrM
591+ , benchFold "filter-map" (filterMap 1) sourceUnfoldrM
796592 ]
797−
798−o_1_space_mixedX2 :: Int -> Benchmark
799−o_1_space_mixedX2 streamLen =
800− bgroup "mixedX2"
801− [ benchFold "scan-map" (scanMap 2) (unfoldrM streamLen)
802− , benchFold "drop-map" (dropMap 2) (unfoldrM streamLen)
803− , benchFold "drop-scan" (dropScan 2) (unfoldrM streamLen)
804− , benchFold "take-drop" (takeDrop streamLen 2) (unfoldrM streamLen)
805− , benchFold "take-scan" (takeScan streamLen 2) (unfoldrM streamLen)
806− , benchFold "take-map" (takeMap streamLen 2) (unfoldrM streamLen)
807− , benchFold "filter-drop" (filterDrop streamLen 2) (unfoldrM streamLen)
808− , benchFold "filter-take" (filterTake streamLen 2) (unfoldrM streamLen)
809− , benchFold "filter-scan" (filterScan 2) (unfoldrM streamLen)
810− , benchFold "filter-map" (filterMap streamLen 2) (unfoldrM streamLen)
593+ , bgroup "mixedX2"
594+ [ benchFold "scan-map" (scanMap 2) sourceUnfoldrM
595+ , benchFold "drop-map" (dropMap 2) sourceUnfoldrM
596+ , benchFold "drop-scan" (dropScan 2) sourceUnfoldrM
597+ , benchFold "take-drop" (takeDrop 2) sourceUnfoldrM
598+ , benchFold "take-scan" (takeScan 2) sourceUnfoldrM
599+ , benchFold "take-map" (takeMap 2) sourceUnfoldrM
600+ , benchFold "filter-drop" (filterDrop 2) sourceUnfoldrM
601+ , benchFold "filter-take" (filterTake 2) sourceUnfoldrM
602+ , benchFold "filter-scan" (filterScan 2) sourceUnfoldrM
603+ , benchFold "filter-map" (filterMap 2) sourceUnfoldrM
811604 ]
812−
813−o_1_space_mixedX4 :: Int -> Benchmark
814−o_1_space_mixedX4 streamLen =
815− bgroup "mixedX4"
816− [ benchFold "scan-map" (scanMap 4) (unfoldrM streamLen)
817− , benchFold "drop-map" (dropMap 4) (unfoldrM streamLen)
818− , benchFold "drop-scan" (dropScan 4) (unfoldrM streamLen)
819− , benchFold "take-drop" (takeDrop streamLen 4) (unfoldrM streamLen)
820− , benchFold "take-scan" (takeScan streamLen 4) (unfoldrM streamLen)
821− , benchFold "take-map" (takeMap streamLen 4) (unfoldrM streamLen)
822− , benchFold "filter-drop" (filterDrop streamLen 4) (unfoldrM streamLen)
823− , benchFold "filter-take" (filterTake streamLen 4) (unfoldrM streamLen)
824− , benchFold "filter-scan" (filterScan 4) (unfoldrM streamLen)
825− , benchFold "filter-map" (filterMap streamLen 4) (unfoldrM streamLen)
826− ]
827−
828−o_1_space_list :: Int -> Benchmark
829−o_1_space_list streamLen =
830− bgroup "list"
831− [ bgroup "elimination"
832− [ benchList "last" (\xs -> [List.last xs]) (unfoldrList streamLen)
833− ]
834− , bgroup "nested"
835− [ benchList "toNullAp" toNullApNestedList (unfoldrList streamLen2)
836− , benchList "toNull" toNullNestedList (unfoldrList streamLen2)
837− , benchList "toNull3" toNullNestedList3 (unfoldrList streamLen3)
838− , benchList "filterAllIn" filterAllInNestedList (unfoldrList streamLen2)
839− , benchList "filterAllOut" filterAllOutNestedList (unfoldrList streamLen2)
605+ , bgroup "mixedX4"
606+ [ benchFold "scan-map" (scanMap 4) sourceUnfoldrM
607+ , benchFold "drop-map" (dropMap 4) sourceUnfoldrM
608+ , benchFold "drop-scan" (dropScan 4) sourceUnfoldrM
609+ , benchFold "take-drop" (takeDrop 4) sourceUnfoldrM
610+ , benchFold "take-scan" (takeScan 4) sourceUnfoldrM
611+ , benchFold "take-map" (takeMap 4) sourceUnfoldrM
612+ , benchFold "filter-drop" (filterDrop 4) sourceUnfoldrM
613+ , benchFold "filter-take" (filterTake 4) sourceUnfoldrM
614+ , benchFold "filter-scan" (filterScan 4) sourceUnfoldrM
615+ , benchFold "filter-map" (filterMap 4) sourceUnfoldrM
840616 ]
841617 ]
842− where
843−
844− streamLen2 = round (P.fromIntegral streamLen**(1/2::P.Double)) -- double nested loop
845− streamLen3 = round (P.fromIntegral streamLen**(1/3::P.Double)) -- triple nested loop
846−
847−o_1_space :: Int -> Benchmark
848−o_1_space streamLen =
849− bgroup (o_1_space_prefix moduleName)
850− [ o_1_space_generation streamLen
851− , o_1_space_elimination streamLen
852− , o_1_space_nested streamLen
853− , o_1_space_transformation streamLen
854− , o_1_space_transformationX4 streamLen
855− , o_1_space_concat streamLen
856− , o_1_space_filtering streamLen
857− , o_1_space_filteringX4 streamLen
858− , o_1_space_zipping streamLen
859− , o_1_space_mixed streamLen
860− , o_1_space_mixedX2 streamLen
861− , o_1_space_mixedX4 streamLen
862− , o_1_space_list streamLen
863− ]
618+ ]
864619
865−o_n_heap :: Int -> Benchmark
866−o_n_heap streamLen =
867− bgroup (o_n_heap_prefix moduleName)
620+o_n_heap :: [Benchmark]
621+o_n_heap =
622+ [ bgroup (o_n_heap_prefix moduleName)
868623 [ bgroup "transformation"
869− [ benchFold "foldlS" (foldlS 1) (unfoldrM streamLen)
624+ [ benchFold "foldlS" (foldlS 1) sourceUnfoldrM
870625 ]
871626 ]
627+ ]
872628
873629{-# INLINE benchK #-}
874630benchK :: P.String -> (Int -> Stream P.IO Int) -> Benchmark
875−benchK name f = bench name $ nfIO $ randomRIO (1,1) >>= drain . f
631+benchK name f = bench name $ nfIO $ randomRIO (1,1) >>= toNull . f
876632
877−o_n_stack :: Int -> Int -> Int -> Benchmark
878−o_n_stack streamLen iterStreamLen maxIters =
879− bgroup (o_n_stack_prefix moduleName)
633+o_n_stack :: [Benchmark]
634+o_n_stack =
635+ [ bgroup (o_n_stack_prefix moduleName)
880636 [ bgroup "elimination"
881− [ benchFold "tail" tail (unfoldrM streamLen)
882− , benchFold "nullTail" nullTail (unfoldrM streamLen)
883− , benchFold "headTail" headTail (unfoldrM streamLen)
637+ [ benchFold "tail" tail sourceUnfoldrM
638+ , benchFold "nullTail" nullTail sourceUnfoldrM
639+ , benchFold "headTail" headTail sourceUnfoldrM
884640 ]
885641 , bgroup "transformation"
886642 [
887643 -- XXX why do these need so much stack
888− benchFold "intersperse" (intersperse streamLen 1) (unfoldrM streamLen2)
889− , benchFold "interspersePure" (intersperse streamLen 1) (unfoldr streamLen2)
644+ benchFold "intersperse" (intersperse 1) (sourceUnfoldrMN value2)
645+ , benchFold "interspersePure" (intersperse 1) (sourceUnfoldrN value2)
890646 ]
891647 , bgroup "transformationX4"
892648 [
893− benchFold "intersperse" (intersperse streamLen 4) (unfoldrM streamLen16)
649+ benchFold "intersperse" (intersperse 4) (sourceUnfoldrMN value16)
894650 ]
895651 , bgroup "iterated"
896− [ benchK "mapM" (iterateMapM iterStreamLen maxIters)
897− , benchK "scan(1/10)" (iterateScan iterStreamLen maxIters)
898− , benchK "filterEven" (iterateFilterEven iterStreamLen maxIters)
899− , benchK "takeAll" (iterateTakeAll streamLen iterStreamLen maxIters)
900− , benchK "dropOne" (iterateDropOne iterStreamLen maxIters)
901− , benchK "dropWhileFalse(1/10)" (iterateDropWhileFalse streamLen iterStreamLen maxIters)
902− , benchK "dropWhileTrue" (iterateDropWhileTrue streamLen iterStreamLen maxIters)
652+ [ benchK "mapM" iterateMapM
653+ , benchK "scan(1/10)" iterateScan
654+ , benchK "filterEven" iterateFilterEven
655+ , benchK "takeAll" iterateTakeAll
656+ , benchK "dropOne" iterateDropOne
657+ , benchK "dropWhileFalse(1/10)" iterateDropWhileFalse
658+ , benchK "dropWhileTrue" iterateDropWhileTrue
903659 ]
904660 ]
905− where
906− streamLen2 = round (P.fromIntegral streamLen**(1/2::P.Double)) -- double nested loop
907− streamLen16 = round (P.fromIntegral streamLen**(1/16::P.Double)) -- triple nested loop
661+ ]
908662
909−o_n_space :: Int -> Benchmark
910−o_n_space streamLen =
911− bgroup (o_n_space_prefix moduleName)
663+o_n_space :: [Benchmark]
664+o_n_space =
665+ [ bgroup (o_n_space_prefix moduleName)
912666 [ bgroup "elimination"
913− [ benchFold "toList" toList (unfoldrM streamLen)
667+ [ benchFold "toList" toList sourceUnfoldrM
914668 ]
915669 ]
670+ ]
916671
917672{-# INLINE benchList #-}
918673benchList :: P.String -> ([Int] -> [Int]) -> (Int -> [Int]) -> Benchmark
919674benchList name run f = bench name $ nfIO $ randomRIO (1,1) >>= return . run . f
920675
921−main :: IO ()
922−main =
923− defaultMain
924− [ o_1_space streamLen
925− , o_n_stack streamLen iterStreamLen maxIters
926− , o_n_heap streamLen
927− , o_n_space streamLen
676+o_1_space_list :: [Benchmark]
677+o_1_space_list =
678+ [ bgroup "list"
679+ [ bgroup "elimination"
680+ [ benchList "last" (\xs -> [List.last xs]) (sourceUnfoldrList value)
928681 ]
682+ , bgroup "nested"
683+ [ benchList "toNullAp" toNullApNestedList (sourceUnfoldrList value2)
684+ , benchList "toNull" toNullNestedList (sourceUnfoldrList value2)
685+ , benchList "toNull3" toNullNestedList3 (sourceUnfoldrList value3)
686+ , benchList "filterAllIn" filterAllInNestedList (sourceUnfoldrList value2)
687+ , benchList "filterAllOut" filterAllOutNestedList (sourceUnfoldrList value2)
688+ ]
689+ ]
690+ ]
929691
930− where
931−
932− streamLen = 100000
933− maxIters = 10000
934− iterStreamLen = 10
692+main :: IO ()
693+main = defaultMain $ concat
694+ [ o_1_space
695+ , [bgroup (o_1_space_prefix moduleName) o_1_space_list]
696+ , o_n_stack
697+ , o_n_heap
698+ , o_n_space
699+ ]