1 -----------------------------------------------------------------------------
2 -- $Id: Main.hs,v 1.10 2005/06/07 10:58:31 simonmar Exp $
4 -- (c) Simon Marlow 1997-2005
5 -----------------------------------------------------------------------------
14 import Text.Html hiding (cols, rows, (!))
15 import qualified Text.Html as Html ((!))
16 import qualified Data.Map as Map
18 import System.Console.GetOpt
19 import System.Exit ( exitWith, ExitCode(..) )
22 import Data.Maybe ( isNothing )
29 -----------------------------------------------------------------------------
33 die s = hPutStr stderr s >> exitWith (ExitFailure 1)
36 usageHeader = "usage: nofib-analyse [OPTION...] <logfile1> <logfile2> ..."
41 when (not (null cmdline_errors) || OptHelp `elem` flags) $
42 die (concat cmdline_errors ++ usageInfo usageHeader argInfo)
44 let { html = OptHTMLOutput `elem` flags;
45 latex = OptLaTeXOutput `elem` flags;
46 ascii = OptASCIIOutput `elem` flags
49 when (ascii && html) $ die "Can't produce both ASCII and HTML"
50 when (devs && nodevs) $ die "Can't both display and hide deviations"
52 results <- parse_logs other_args
54 summary_spec <- case [ cols | OptColumns cols <- flags ] of
55 [] -> return (pickSummary results)
56 (cols:_) -> namedColumns (split ',' cols)
58 let summary_rows = case [ rows | OptRows rows <- flags ] of
60 rows -> Just (split ',' (last rows))
62 let column_headings = map (reverse . takeWhile (/= '/') . reverse) other_args
65 sequence_ [ checkTimes prog res | result_table <- results,
66 (prog,res) <- Map.toList result_table ]
70 putStr (renderHtml (htmlPage results column_headings))
72 putStr (latexOutput results column_headings summary_spec summary_rows)
74 putStr (asciiPage results column_headings summary_spec summary_rows)
77 parse_logs :: [String] -> IO [ResultTable]
79 f <- hGetContents stdin
81 parse_logs log_files =
82 mapM (\f -> do h <- openFile f ReadMode
84 return (parse_log c)) log_files
86 -----------------------------------------------------------------------------
87 -- List of tables we're going to generate
89 data PerProgTableSpec =
90 forall a . Result a =>
92 String -- Name of the table
93 String -- Short name (for column heading)
94 String -- HTML tag for the table
95 (Results -> Maybe a) -- How to get the result
96 (Results -> Status) -- How to get the status of this result
97 (a -> Bool) -- Result within reasonable limits?
99 data PerModuleTableSpec =
100 forall a . Result a =>
102 String -- Name of the table
103 String -- HTML tag for the table
104 (Results -> Map String a) -- get the module map
105 (a -> Bool) -- Result within reasonable limits?
107 -- The various per-program aspects of execution that we can generate results for.
108 size_spec, alloc_spec, runtime_spec, muttime_spec, gctime_spec,
109 gcwork_spec, instrs_spec, mreads_spec, mwrite_spec, cmiss_spec
111 size_spec = SpecP "Binary Sizes" "Size" "binary-sizes" binary_size compile_status always_ok
112 alloc_spec = SpecP "Allocations" "Allocs" "allocations" allocs run_status always_ok
113 runtime_spec = SpecP "Run Time" "Runtime" "run-times" (mean run_time) run_status time_ok
114 muttime_spec = SpecP "Mutator Time" "MutTime" "mutator-time" (mean mut_time) run_status time_ok
115 gctime_spec = SpecP "GC Time" "GCTime" "gc-time" (mean gc_time) run_status time_ok
116 gcwork_spec = SpecP "GC Work" "GCWork" "gc-work" gc_work run_status always_ok
117 instrs_spec = SpecP "Instructions" "Instrs" "instrs" instrs run_status always_ok
118 mreads_spec = SpecP "Memory Reads" "Reads" "mem-reads" mem_reads run_status always_ok
119 mwrite_spec = SpecP "Memory Writes" "Writes" "mem-writes" mem_writes run_status always_ok
120 cmiss_spec = SpecP "Cache Misses" "Misses" "cache-misses" cache_misses run_status always_ok
122 all_specs :: [PerProgTableSpec]
136 namedColumns :: [String] -> IO [PerProgTableSpec]
137 namedColumns ss = mapM findSpec ss
139 case [ spec | spec@(SpecP _ short_name _ _ _ _) <- all_specs,
141 [] -> die ("unknown column: " ++ s)
142 (spec:_) -> return spec
144 mean :: (Results -> [Float]) -> Results -> Maybe Float
145 mean f results = go (f results)
146 where go [] = Nothing
147 go fs = Just (foldl' (+) 0 fs / fromIntegral (length fs))
149 -- Look for bogus-looking times: On Linux we occasionally get timing results
150 -- that are bizarrely low, and skew the average.
151 checkTimes :: String -> Results -> IO ()
152 checkTimes prog results = do
153 check "run time" (run_time results)
154 check "mut time" (mut_time results)
155 check "GC time" (gc_time results)
159 hPutStrLn stderr ("warning: dubious " ++ kind
160 ++ " results for " ++ prog
162 | otherwise = return ()
163 where strange t = any (\r -> time_ok r && r / t > 1.4) ts
164 -- looks for times that are >40% smaller than
168 -- These are the per-prog tables we want to generate
169 per_prog_result_tab :: [PerProgTableSpec]
170 per_prog_result_tab =
171 [ size_spec, alloc_spec, runtime_spec, muttime_spec, gctime_spec,
172 gcwork_spec, instrs_spec, mreads_spec, mwrite_spec, cmiss_spec ]
174 -- A single summary table, giving comparison figures for a number of
175 -- aspects, each in its own column. Only works when comparing two runs.
176 normal_summary_specs :: [PerProgTableSpec]
177 normal_summary_specs =
178 [ size_spec, alloc_spec, runtime_spec ]
180 cachegrind_summary_specs :: [PerProgTableSpec]
181 cachegrind_summary_specs =
182 [ size_spec, alloc_spec, instrs_spec, mreads_spec, mwrite_spec ]
184 -- Pick an appropriate summary table: if we're cachegrinding, then
185 -- we're probably not interested in the runtime, but we are interested
186 -- in instructions, mem reads and mem writes (and vice-versa).
187 pickSummary :: [ResultTable] -> [PerProgTableSpec]
189 | isNothing (instrs (head (Map.elems (head rs)))) = normal_summary_specs
190 | otherwise = cachegrind_summary_specs
192 per_module_result_tab :: [PerModuleTableSpec]
193 per_module_result_tab =
194 [ SpecM "Module Sizes" "mod-sizes" module_size always_ok
195 , SpecM "Compile Times" "compile-time" compile_time time_ok
198 always_ok :: a -> Bool
199 always_ok = const True
201 time_ok :: Float -> Bool
202 time_ok t = t > tooquick_threshold
204 -----------------------------------------------------------------------------
205 -- HTML page generation
207 htmlPage :: [ResultTable] -> [String] -> Html
208 htmlPage results args
209 = header << thetitle << reportTitle
211 +++ h1 << reportTitle
214 +++ body (gen_tables results args)
216 gen_menu = unordList (map (prog_menu_item) per_prog_result_tab
217 ++ map (module_menu_item) per_module_result_tab)
219 prog_menu_item (SpecP name _ anc _ _ _) = anchor <! [href ('#':anc)] << name
220 module_menu_item (SpecM name anc _ _) = anchor <! [href ('#':anc)] << name
222 gen_tables results args =
223 foldr1 (+++) (map (htmlGenProgTable results args) per_prog_result_tab)
224 +++ foldr1 (+++) (map (htmlGenModTable results args) per_module_result_tab)
226 htmlGenProgTable results args (SpecP title _ anc get_result get_status result_ok)
227 = sectHeading title anc
228 +++ font <! [size "1"]
229 << mkTable (htmlShowResults results args get_result get_status result_ok)
232 htmlGenModTable results args (SpecM title anc get_result result_ok)
233 = sectHeading title anc
234 +++ font <![size "1"]
235 << mkTable (htmlShowMultiResults results args get_result result_ok)
238 sectHeading :: String -> String -> Html
239 sectHeading s nm = h2 << anchor <! [name nm] << s
245 -> (Results -> Maybe a)
246 -> (Results -> Status)
250 htmlShowResults (r:rs) ss f stat result_ok
252 </> aboves (zipWith tableRow [1..] results_per_prog)
253 </> aboves ((if nodevs then []
254 else [tableRow (-1) ("-1 s.d.", lows),
255 tableRow (-1) ("+1 s.d.", highs)])
256 ++ [tableRow (-1) ("Average", gms)])
258 -- results_per_prog :: [ (String,[BoxValue a]) ]
259 results_per_prog = map (calc_result rs f stat result_ok) (Map.toList r)
261 results_per_run = transpose (map snd results_per_prog)
262 (lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
268 -> (Results -> Map String a)
272 htmlShowMultiResults (r:rs) ss f result_ok =
274 </> aboves (map show_results_for_prog results_per_prog_mod_run)
275 </> aboves ((if nodevs then []
276 else [td << bold << "-1 s.d."
277 <-> tableRow (-1) ("", lows),
278 td << bold << "+1 s.d."
279 <-> tableRow (-1) ("", highs)])
280 ++ [td << bold << "Average"
281 <-> tableRow (-1) ("", gms)])
284 base_results = Map.toList r :: [(String,Results)]
286 -- results_per_prog_mod_run :: [(String,[(String,[BoxValue a])])]
287 results_per_prog_mod_run = map get_results_for_prog base_results
289 -- get_results_for_prog :: (String,Results) -> (String,[BoxValue a])
290 get_results_for_prog (prog,r) = (prog, map get_results_for_mod (Map.toList (f r)))
292 where fms = map get_run_results rs
294 get_run_results fm = case Map.lookup prog fm of
298 get_results_for_mod (id,attr) = calc_result fms Just (const Success)
301 show_results_for_prog (prog,mrs) =
302 td <! [valign "top"] << bold << prog
303 <-> (if null mrs then
304 td << "(no modules compiled)"
306 toHtml (aboves (map (tableRow 0) mrs)))
308 results_per_run = transpose [xs | (_,mods) <- results_per_prog_mod_run,
310 (lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
312 tableRow :: Int -> (String, [BoxValue]) -> HtmlTable
313 tableRow row_no (prog, results)
314 = td <! [bgcolor left_column_color] << prog
315 <-> besides (map (\s -> td <! [align "right", clr] << showBox s)
317 where clr | row_no < 0 = bgcolor average_row_color
318 | even row_no = bgcolor even_row_color
319 | otherwise = bgcolor odd_row_color
321 left_column_color = "#d0d0ff" -- light blue
322 odd_row_color = "#d0d0ff" -- light blue
323 even_row_color = "#f0f0ff" -- v. light blue
324 average_row_color = "#ffd0d0" -- light red
327 findBest :: Result a => [BoxValue a] -> [(Bool,BoxValue a)]
328 findBest stuff@(Result base : rest)
329 = map (\a -> (a==base, a))
331 best = snd (minimumBy (\a b -> fst a < fst b) no_pcnt_stuff
333 no_pcnt_stuff = map unPcnt stuff
335 unPcnt (r@(Percentage f) : rest) = (base * f/100, r) : unPcnt rest
336 unPcnt (r@(Result a) : rest) = (a, r) : unPcnt rest
337 unPcnt (_ : rest) = unPcnt rest
341 = besides (map (\s -> (td <! [align "right", width "100"] << bold << s)) ss)
343 mkTable t = table <! [cellspacing 0, cellpadding 0, border 0] << t
346 = (td <! [align "left", width "100"] << bold << "Program")
350 = (td <! [align "left", width "100"] << bold << "Program")
351 <-> (td <! [align "left", width "100"] << bold << "Module")
354 -- Calculate a color ranging from bright blue for -100% to bright red for +100%.
356 calcColor :: Int -> String
357 calcColor p | p >= 0 = "#" ++ (showHex red 2 "0000")
358 | otherwise = "#0000" ++ (showHex blue 2 "")
359 where red = p * 255 `div` 100
360 blue = (-p) * 255 `div` 100
362 showHex 0 f s = if f > 0 then take f (repeat '0') ++ s else s
363 showHex i f s = showHex (i `div` 16) (f-1) (hexDig (i `mod` 16) : s)
365 hexDig i | i > 10 = chr (i-10 + ord 'a')
366 | otherwise = chr (i + ord '0')
368 -----------------------------------------------------------------------------
369 -- LaTeX table generation (just the summary for now)
371 latexOutput results args summary_spec summary_rows =
372 (if (length results == 2)
373 then ascii_summary_table True results summary_spec summary_rows
378 -----------------------------------------------------------------------------
379 -- ASCII page generation
381 asciiPage results args summary_spec summary_rows =
384 -- only show the summary table if we're comparing two runs
385 . (if (length results == 2)
386 then ascii_summary_table False results summary_spec summary_rows . str "\n\n"
388 . interleave "\n\n" (map (asciiGenProgTable results args) per_prog_result_tab)
390 . interleave "\n\n" (map (asciiGenModTable results args) per_module_result_tab)
393 asciiGenProgTable results args (SpecP title _ anc get_result get_status result_ok)
396 . ascii_show_results results args get_result get_status result_ok
398 asciiGenModTable results args (SpecM title anc get_result result_ok)
401 . ascii_show_multi_results results args get_result result_ok
403 ascii_header width ss
404 = str "\n-------------------------------------------------------------------------------\n"
405 . str (rjustify 15 "Program")
407 . foldr (.) id (map (str . rjustify width) ss)
408 . str "\n-------------------------------------------------------------------------------\n"
414 -> (Results -> Maybe a)
415 -> (Results -> Status)
419 ascii_show_results (r:rs) ss f stat result_ok
420 = ascii_header fIELD_WIDTH ss
421 . interleave "\n" (map show_per_prog_results results_per_prog)
424 . show_per_prog_results ("-1 s.d.",lows)
426 . show_per_prog_results ("+1 s.d.",highs)
428 . show_per_prog_results ("Average",gms)
430 -- results_per_prog :: [ (String,[BoxValue a]) ]
431 results_per_prog = map (calc_result rs f stat result_ok) (Map.toList r)
433 results_per_run = transpose (map snd results_per_prog)
434 (lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
436 -- A summary table, useful only when we are comparing two runs. This table
437 -- shows a number of different result categories, one per column.
439 :: Bool -- generate a LaTeX table?
441 -> [PerProgTableSpec]
444 ascii_summary_table latex (r1:r2:_) specs mb_restrict
445 | latex = makeLatexTable (rows ++ TableLine : av_rows)
447 makeTable (table_layout (length specs) width)
448 (TableLine : TableRow header : TableLine : rows ++ TableLine : av_rows)
450 header = BoxString "Program" : map BoxString headings
452 (headings, columns, av_cols) = unzip3 (map calc_col specs)
453 av_heads = [BoxString "Min", BoxString "Max", BoxString "Geometric Mean"]
454 baseline = Map.toList r1
455 progs = map BoxString (Map.keys r1)
456 rows0 = map TableRow (zipWith (:) progs (transpose columns))
458 rows1 = restrictRows mb_restrict rows0
460 rows | latex = mungeForLaTeX rows1
463 av_rows = map TableRow (zipWith (:) av_heads (transpose av_cols))
466 calc_col (SpecP _ heading _ getr gets ok)
467 = (heading, column, [min,max,mean]) -- throw away the baseline result
468 where (_, boxes) = unzip (map calc_one_result baseline)
469 calc_one_result = calc_result [r2] getr gets ok
470 column = map (\(_:b:_) -> b) boxes
471 (_,mean,_) = calc_gmsd column
472 (min,max) = calc_minmax column
474 restrictRows :: Maybe [String] -> [TableRow] -> [TableRow]
475 restrictRows Nothing rows = rows
476 restrictRows (Just these) rows = filter keep_it rows
477 where keep_it (TableRow (BoxString s: _)) = s `elem` these
478 keep_it TableLine = True
481 mungeForLaTeX :: [TableRow] -> [TableRow]
482 mungeForLaTeX = map transrow
484 transrow (TableRow boxes) = TableRow (map transbox boxes)
487 transbox (BoxString s) = BoxString (foldr transchar "" s)
490 transchar '_' s = '\\':'_':s
493 table_layout n width =
494 (str . rjustify 15) :
495 (\s -> str (space 5) . str (rjustify width s)) :
496 replicate (n-1) (str . rjustify width)
498 ascii_show_multi_results
502 -> (Results -> Map String a)
506 ascii_show_multi_results (r:rs) ss f result_ok
507 = ascii_header fIELD_WIDTH ss
508 . interleave "\n" (map show_results_for_prog results_per_prog_mod_run)
512 . show_per_prog_results ("-1 s.d.",lows)
514 . show_per_prog_results ("+1 s.d.",highs)
516 . show_per_prog_results ("Average",gms)
518 base_results = Map.toList r :: [(String,Results)]
520 -- results_per_prog_mod_run :: [(String,[(String,[BoxValue a])])]
521 results_per_prog_mod_run = map get_results_for_prog base_results
523 -- get_results_for_prog :: (String,Results) -> (String,[BoxValue a])
524 get_results_for_prog (prog,r) = (prog, map get_results_for_mod (Map.toList (f r)))
526 where fms = map get_run_results rs
528 get_run_results fm = case Map.lookup prog fm of
532 get_results_for_mod (id,attr) = calc_result fms Just (const Success)
535 show_results_for_prog (prog,mrs) =
536 str ("\n"++prog++"\n")
538 str "(no modules compiled)\n"
540 interleave "\n" (map show_per_prog_results mrs))
542 results_per_run = transpose [xs | (_,mods) <- results_per_prog_mod_run,
544 (lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
547 show_per_prog_results :: (String, [BoxValue]) -> ShowS
548 show_per_prog_results = show_per_prog_results_width fIELD_WIDTH
550 show_per_prog_results_width width (prog,results)
551 = str (rjustify 15 prog)
553 . foldr (.) id (map (str . rjustify width . showBox) results)
555 -- ---------------------------------------------------------------------------
556 -- Generic stuff for results generation
558 -- calc_result is a nice exercise in higher-order programming...
561 => [Map String b] -- accumulated results
562 -> (b -> Maybe a) -- get a result from the b
563 -> (b -> Status) -- get a status from the b
564 -> (a -> Bool) -- is this result ok?
565 -> (String,b) -- the baseline result
566 -> (String,[BoxValue])
568 calc_result rts get_maybe_a get_stat result_ok (prog,base_r) =
569 (prog, (just_result baseline base_stat :
572 rts' = map (\rt -> get_stuff (Map.lookup prog rt)) rts
574 get_stuff Nothing = (Nothing, NotDone)
575 get_stuff (Just r) = (get_maybe_a r, get_stat r)
579 Just base | result_ok base
580 -> map (\(r,s) -> percentage r s base) rts'
582 -> map (\(r,s) -> just_result r s) rts'
585 baseline = get_maybe_a base_r
586 base_stat = get_stat base_r
588 just_result Nothing s = RunFailed s
589 just_result (Just a) s = toBox a
591 percentage Nothing s base = RunFailed s
592 percentage (Just a) s base = Percentage
593 (convert_to_percentage base a)
594 -----------------------------------------------------------------------------
595 -- Calculating geometric means and standard deviations
598 This is done using the log method, to avoid needing really large
599 intermediate results. The formula for a geometric mean is
601 (a1 * .... * an) ^ 1/n
603 which is equivalent to
605 e ^ ( (log a1 + ... + log an) / n )
607 where log is the natural logarithm function.
609 Similarly, to compute the geometric standard deviation we compute the
610 deviation of each log, take the root-mean-square, and take the
613 e ^ sqrt( ( sqr(log a1 - lbar) + ... + sqr(log an - lbar) ) / n )
615 where lbar is the mean log,
617 (log a1 + ... + log an) / n
619 This is a *factor*: i.e., the 1 s.d. points are (gm/sdf,gm*sdf); do
620 not subtract 100 from gm before performing this calculation.
622 We therefore return a (low, mean, high) triple.
626 calc_gmsd :: [BoxValue] -> (BoxValue, BoxValue, BoxValue)
628 | null percentages = (RunFailed NotDone, RunFailed NotDone, RunFailed NotDone)
629 | otherwise = let sqr x = x * x
630 len = fromIntegral (length percentages)
631 logs = map log percentages
632 lbar = sum logs / len
633 devs = map (sqr . (lbar-)) logs
634 dbar = sum devs / len
636 sdf = exp (sqrt dbar)
638 (Percentage (gm/sdf),
642 percentages = [ if f < 5 then 5 else f | Percentage f <- xs ]
643 -- can't do log(0.0), so exclude zeros
644 -- small values have inordinate effects so cap at -95%.
646 calc_minmax :: [BoxValue] -> (BoxValue, BoxValue)
648 | null percentages = (RunFailed NotDone, RunFailed NotDone)
649 | otherwise = (Percentage (minimum percentages),
650 Percentage (maximum percentages))
652 percentages = [ if f < 5 then 5 else f | Percentage f <- xs ]
655 -----------------------------------------------------------------------------
658 class Num a => Result a where
659 toBox :: a -> BoxValue
660 convert_to_percentage :: a -> a -> Float
662 -- We assume an Int is a size, and print it in kilobytes.
664 instance Result Int where
665 convert_to_percentage 0 size = 100
666 convert_to_percentage base size = (fromIntegral size / fromIntegral base) * 100
670 instance Result Integer where
671 convert_to_percentage 0 size = 100
672 convert_to_percentage base size = (fromInteger size / fromInteger base) * 100
676 instance Result Float where
677 convert_to_percentage 0.0 size = 100.0
678 convert_to_percentage base size = size / base * 100
682 -- -----------------------------------------------------------------------------
685 -- The contents of a box in a table
694 showBox :: BoxValue -> String
695 showBox (RunFailed stat) = show_stat stat
696 showBox (Percentage f) = show_pcntage f
697 showBox (BoxFloat f) = printf "%.2f" f
698 showBox (BoxInt n) = show (n `div` 1024) ++ "k"
699 showBox (BoxInteger n) = show (n `div` 1024) ++ "k"
700 showBox (BoxString s) = s
702 instance Show BoxValue where { show = showBox }
704 show_pcntage n = show_float_signed (n-100) ++ "%"
707 | n >= 0 = printf "+%.1f" n
708 | otherwise = printf "%.1f" n
710 show_stat Success = "(no result)"
711 show_stat WrongStdout = "(stdout)"
712 show_stat WrongStderr = "(stderr)"
713 show_stat (Exit x) = "exit(" ++ show x ++")"
714 show_stat OutOfHeap = "(heap)"
715 show_stat OutOfStack = "(stack)"
716 show_stat NotDone = "-----"
718 -- -----------------------------------------------------------------------------
722 = TableRow [BoxValue]
725 type Layout = [String -> ShowS]
727 makeTable :: Layout -> [TableRow] -> ShowS
728 makeTable p = interleave "\n" . map do_row
729 where do_row (TableRow boxes) = applyLayout p boxes
730 do_row TableLine = str (take 80 (repeat '-'))
732 makeLatexTable :: [TableRow] -> ShowS
733 makeLatexTable = foldr (.) id . map do_row
734 where do_row (TableRow boxes)
735 = applyLayout latexTableLayout boxes . str "\\\\\n"
739 latexTableLayout :: Layout
740 latexTableLayout = box : repeat (box . (" & "++))
741 where box s = str (foldr transchar "" s)
743 transchar '%' s = s -- leave out the percentage signs
744 transchar c s = c : s
746 applyLayout :: Layout -> [BoxValue] -> ShowS
747 applyLayout layout values =
748 foldr (.) id [ f (show val) | (val,f) <- zip values layout ]
750 -- -----------------------------------------------------------------------------
753 split :: Char -> String -> [String]
754 split c s = case rest of
756 _:rest -> chunk : split c rest
757 where (chunk, rest) = break (==c) s
761 interleave s = foldr1 (\a b -> a . str s . b)
763 fIELD_WIDTH = 16 :: Int
765 -----------------------------------------------------------------------------