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#!/bin/sh
# -*- Scheme -*-
exec ${GUILE-guile} -q -l "$0" \
-c '(apply main (cdr (command-line)))' \
--benchmark-dir="$(dirname $0)" "$@"
!#
;;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Lesser General Public License
;;; as published by the Free Software Foundation; either version 3, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU Lesser General Public License for more details.
;;;
;;; You should have received a copy of the GNU Lesser General Public
;;; License along with this software; see the file COPYING.LESSER. If
;;; not, write to the Free Software Foundation, Inc., 51 Franklin
;;; Street, Fifth Floor, Boston, MA 02110-1301 USA
(use-modules (ice-9 rdelim)
(ice-9 popen)
(ice-9 regex)
(ice-9 format)
(ice-9 pretty-print)
(srfi srfi-1)
(srfi srfi-37))
;;;
;;; Running Guile.
;;;
(define (run-reference-guile env bench-dir profile-opts bench)
"Run the ``mainstream'' Guile, i.e., Guile 1.9 with its own GC."
(open-input-pipe (string-append
env " "
bench-dir "/gc-profile.scm " profile-opts
" \"" bench "\"")))
(define (run-bdwgc-guile env bench-dir profile-opts options bench)
"Run the Guile port to the Boehm-Demers-Weiser GC (BDW-GC)."
(let ((fsd (assoc-ref options 'free-space-divisor)))
(open-input-pipe (string-append env " "
"GC_FREE_SPACE_DIVISOR="
(number->string fsd)
(if (or (assoc-ref options 'incremental?)
(assoc-ref options 'generational?))
" GC_ENABLE_INCREMENTAL=yes"
"")
(if (assoc-ref options 'generational?)
" GC_PAUSE_TIME_TARGET=999999"
"")
(if (assoc-ref options 'parallel?)
"" ;; let it choose the number of procs
" GC_MARKERS=1")
" "
bench-dir "/gc-profile.scm " profile-opts
" \"" bench "\""))))
;;;
;;; Extracting performance results.
;;;
(define (grep regexp input)
"Read line by line from the @var{input} port and return all matches for
@var{regexp}."
(let ((regexp (if (string? regexp) (make-regexp regexp) regexp)))
(with-input-from-port input
(lambda ()
(let loop ((line (read-line))
(result '()))
(format #t "> ~A~%" line)
(if (eof-object? line)
(reverse result)
(cond ((regexp-exec regexp line)
=>
(lambda (match)
(loop (read-line)
(cons match result))))
(else
(loop (read-line) result)))))))))
(define (parse-result benchmark-output)
(let ((result (grep "^(execution time|heap size):[[:blank:]]+([0-9.]+)"
benchmark-output)))
(fold (lambda (match result)
(cond ((equal? (match:substring match 1) "execution time")
(cons (cons 'execution-time
(string->number (match:substring match 2)))
result))
((equal? (match:substring match 1) "heap size")
(cons (cons 'heap-size
(string->number (match:substring match 2)))
result))
(else
result)))
'()
result)))
(define (pretty-print-result benchmark reference bdwgc)
(define ref-heap (assoc-ref reference 'heap-size))
(define ref-time (assoc-ref reference 'execution-time))
(define (distance x1 y1 x2 y2)
;; Return the distance between (X1,Y1) and (X2,Y2). Y is the heap size,
;; in MiB and X is the execution time in seconds.
(let ((y1 (/ y1 (expt 2 20)))
(y2 (/ y2 (expt 2 20))))
(sqrt (+ (expt (- y1 y2) 2)
(expt (- x1 x2) 2)))))
(define (score time heap)
;; Return a score lower than +1.0. The score is positive if the
;; distance to the origin of (TIME,HEAP) is smaller than that of
;; (REF-TIME,REF-HEAP), negative otherwise.
;; heap ^ .
;; size | . worse
;; | . [-]
;; | .
;; | . . . .ref. . . .
;; | .
;; | [+] .
;; | better .
;; 0 +-------------------->
;; exec. time
(let ((ref-dist (distance ref-time ref-heap 0 0))
(dist (distance time heap 0 0)))
(/ (- ref-dist dist) ref-dist)))
(define (score-string time heap)
;; Return a string denoting a bar to illustrate the score of (TIME,HEAP)
;; relative to (REF-TIME,REF-HEAP).
(define %max-width 15)
(let ((s (score time heap)))
(make-string (inexact->exact (round (* (if (< s 0.0) (- s) s)
%max-width)))
(if (< s 0.0)
#\-
#\+))))
(define (print-line name result ref?)
(let ((name (string-pad-right name 23))
(time (assoc-ref result 'execution-time))
(heap (assoc-ref result 'heap-size)))
(format #t "~a ~6,2f (~,2fx) ~7,3f (~,2fx)~A~%"
name
(/ heap (expt 2.0 20)) (/ heap ref-heap 1.0)
time (/ time ref-time 1.0)
(if (not ref?)
(string-append " "
(score-string time heap))
""))))
(format #t "benchmark: `~a'~%" benchmark)
(format #t " heap size (MiB) execution time (s.)~%")
(print-line "Guile" reference #t)
(for-each (lambda (bdwgc)
(let ((name (format #f "BDW-GC, FSD=~a~a"
(assoc-ref bdwgc 'free-space-divisor)
(cond ((assoc-ref bdwgc 'incremental?)
" incr.")
((assoc-ref bdwgc 'generational?)
" gene.")
((assoc-ref bdwgc 'parallel?)
" paral.")
(else "")))))
(print-line name bdwgc #f)))
bdwgc))
(define (print-raw-result benchmark reference bdwgc)
(pretty-print `(,benchmark
(reference . ,reference)
(bdw-gc . ,bdwgc))))
;;;
;;; Option processing.
;;;
(define %options
(list (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\r "reference") #t #f
(lambda (opt name arg result)
(alist-cons 'reference-environment arg
(alist-delete 'reference-environment result
eq?))))
(option '(#\b "bdw-gc") #t #f
(lambda (opt name arg result)
(alist-cons 'bdwgc-environment arg
(alist-delete 'bdwgc-environment result
eq?))))
(option '(#\d "benchmark-dir") #t #f
(lambda (opt name arg result)
(alist-cons 'benchmark-directory arg
(alist-delete 'benchmark-directory result
eq?))))
(option '(#\p "profile-options") #t #f
(lambda (opt name arg result)
(let ((opts (assoc-ref result 'profile-options)))
(alist-cons 'profile-options
(string-append opts " " arg)
(alist-delete 'profile-options result
eq?)))))
(option '(#\l "log-file") #t #f
(lambda (opt name arg result)
(alist-cons 'log-port (open-output-file arg)
(alist-delete 'log-port result
eq?))))
(option '("raw") #f #f
(lambda (opt name arg result)
(alist-cons 'printer print-raw-result
(alist-delete 'printer result eq?))))
(option '("load-results") #f #f
(lambda (opt name arg result)
(alist-cons 'load-results? #t result)))))
(define %default-options
`((reference-environment . "GUILE=guile")
(benchmark-directory . "./gc-benchmarks")
(log-port . ,(current-output-port))
(profile-options . "")
(input . ())
(printer . ,pretty-print-result)))
(define (show-help)
(format #t "Usage: run-benchmark [OPTIONS] BENCHMARKS...
Run BENCHMARKS (a list of Scheme files) and display a performance
comparison of standard Guile (1.9) and the BDW-GC-based Guile.
-h, --help Show this help message
-r, --reference=ENV
-b, --bdw-gc=ENV
Use ENV as the environment necessary to run the
\"reference\" Guile (1.9) or the BDW-GC-based Guile,
respectively. At a minimum, ENV should define the
`GUILE' environment variable. For example:
--reference='GUILE=/foo/bar/guile LD_LIBRARY_PATH=/foo'
-p, --profile-options=OPTS
Pass OPTS as additional options for `gc-profile.scm'.
-l, --log-file=FILE
Save output to FILE instead of the standard output.
--raw Write benchmark results in raw (s-exp) format.
--load-results
Load raw (s-exp) results instead of actually running
the benchmarks.
-d, --benchmark-dir=DIR
Use DIR as the GC benchmark directory where `gc-profile.scm'
lives (it is automatically determined by default).
Report bugs to <[email protected]>.~%"))
(define (parse-args args)
(define (leave fmt . args)
(apply format (current-error-port) (string-append fmt "~%") args)
(exit 1))
(args-fold args %options
(lambda (opt name arg result)
(leave "~A: unrecognized option" opt))
(lambda (file result)
(let ((files (or (assoc-ref result 'input) '())))
(alist-cons 'input (cons file files)
(alist-delete 'input result eq?))))
%default-options))
;;;
;;; The main program.
;;;
(define (main . args)
(let* ((args (parse-args args))
(benchmark-files (assoc-ref args 'input)))
(let* ((log (assoc-ref args 'log-port))
(bench-dir (assoc-ref args 'benchmark-directory))
(ref-env (assoc-ref args 'reference-environment))
(bdwgc-env (or (assoc-ref args 'bdwgc-environment)
(string-append "GUILE=" bench-dir
"/../meta/guile")))
(prof-opts (assoc-ref args 'profile-options))
(print (assoc-ref args 'printer)))
(define (run benchmark)
(let ((ref (parse-result (run-reference-guile ref-env
bench-dir
prof-opts
benchmark)))
(bdwgc (map (lambda (fsd incremental?
generational? parallel?)
(let ((opts
(list
(cons 'free-space-divisor fsd)
(cons 'incremental? incremental?)
(cons 'generational? generational?)
(cons 'parallel? parallel?))))
(append opts
(parse-result
(run-bdwgc-guile bdwgc-env
bench-dir
prof-opts
opts
benchmark)))))
'( 3 6 9 3 3)
'(#f #f #f #t #f) ;; incremental
'(#f #f #f #f #t) ;; generational
'(#f #f #f #f #f)))) ;; parallel
`(,benchmark
(reference . ,ref)
(bdw-gc . ,bdwgc))))
(define (load-results file)
(with-input-from-file file
(lambda ()
(let loop ((results '()) (o (read)))
(if (eof-object? o)
(reverse results)
(loop (cons o results)
(read)))))))
(for-each (lambda (result)
(let ((benchmark (car result))
(ref (assoc-ref (cdr result) 'reference))
(bdwgc (assoc-ref (cdr result) 'bdw-gc)))
(with-output-to-port log
(lambda ()
(print benchmark ref bdwgc)
(newline)
(force-output)))))
(if (assoc-ref args 'load-results?)
(append-map load-results benchmark-files)
(map run benchmark-files))))))
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