115 lines
4.2 KiB
Scheme
115 lines
4.2 KiB
Scheme
;;; Ikarus Scheme -- A compiler for R6RS Scheme.
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;;; Copyright (C) 2006,2007,2008 Abdulaziz Ghuloum
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;;;
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;;; This program is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License version 3 as
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;;; published by the Free Software Foundation.
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;;;
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;;; This program is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(library (ikarus timers)
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(export time-it verbose-timer)
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(import (except (ikarus) time-it verbose-timer))
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(define-struct stats
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(user-secs user-usecs
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sys-secs sys-usecs
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real-secs real-usecs
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collection-id
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gc-user-secs gc-user-usecs
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gc-sys-secs gc-sys-usecs
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gc-real-secs gc-real-usecs
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bytes-minor bytes-major
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))
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(define (mk-stats)
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(make-stats #f #f #f #f #f #f #f #f #f #f #f #f #f #f #f))
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(define verbose-timer (make-parameter #f))
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(define (set-stats! t)
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(foreign-call "ikrt_stats_now" t))
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(define (print-stats message t1 t0)
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(define (print-time msg msecs gc-msecs)
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(fprintf
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(console-error-port)
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" ~a ms elapsed ~a time, including ~a ms collecting\n" msecs msg
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gc-msecs))
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(define (msecs s1 s0 u1 u0)
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(+ (* (- s1 s0) 1000) (quotient (- u1 u0) 1000)))
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(if message
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(fprintf (console-error-port) "running stats for ~a:\n" message)
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(fprintf (console-error-port) "running stats:\n"))
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(let ([collections
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(fx- (stats-collection-id t1) (stats-collection-id t0))])
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(case collections
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[(0) (display " no collections\n" (console-error-port))]
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[(1) (display " 1 collection\n" (console-error-port))]
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[else (fprintf (console-error-port) " ~a collections\n" collections)]))
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(print-time "cpu"
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(+ (msecs (stats-user-secs t1) (stats-user-secs t0)
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(stats-user-usecs t1) (stats-user-usecs t0))
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(msecs (stats-sys-secs t1) (stats-sys-secs t0)
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(stats-sys-usecs t1) (stats-sys-usecs t0)))
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(+ (msecs (stats-gc-user-secs t1) (stats-gc-user-secs t0)
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(stats-gc-user-usecs t1) (stats-gc-user-usecs t0))
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(msecs (stats-gc-sys-secs t1) (stats-gc-sys-secs t0)
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(stats-gc-sys-usecs t1) (stats-gc-sys-usecs t0))))
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(print-time "real"
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(msecs (stats-real-secs t1) (stats-real-secs t0)
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(stats-real-usecs t1) (stats-real-usecs t0))
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(msecs (stats-gc-real-secs t1) (stats-gc-real-secs t0)
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(stats-gc-real-usecs t1) (stats-gc-real-usecs t0)))
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(when (verbose-timer)
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(print-time "user"
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(msecs (stats-user-secs t1) (stats-user-secs t0)
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(stats-user-usecs t1) (stats-user-usecs t0))
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(msecs (stats-gc-user-secs t1) (stats-gc-user-secs t0)
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(stats-gc-user-usecs t1) (stats-gc-user-usecs t0)))
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(print-time "sys"
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(msecs (stats-sys-secs t1) (stats-sys-secs t0)
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(stats-sys-usecs t1) (stats-sys-usecs t0))
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(msecs (stats-gc-sys-secs t1) (stats-gc-sys-secs t0)
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(stats-gc-sys-usecs t1) (stats-gc-sys-usecs t0))))
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(fprintf (console-error-port) " ~a bytes allocated\n"
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(diff-bytes
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(stats-bytes-minor t0)
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(stats-bytes-major t0)
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(stats-bytes-minor t1)
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(stats-bytes-major t1))))
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(define time-it
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(case-lambda
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[(proc)
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(time-it #f proc)]
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[(message proc)
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(unless (procedure? proc)
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(die 'time-it "not a procedure" proc))
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(let* ([t0 (mk-stats)]
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[t1 (mk-stats)])
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(define k
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(case-lambda
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[(v)
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(set-stats! t1)
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(print-stats message t1 t0)
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v]
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[v*
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(set-stats! t1)
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(print-stats message t1 t0)
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(apply values v*)]))
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(set-stats! t0)
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(call-with-values proc k))]))
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(define (diff-bytes mnr0 mjr0 mnr1 mjr1)
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(+ (fx- mnr1 mnr0) (* (fx- mjr1 mjr0) #x10000000)))
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)
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