source: trunk/abcl/src/org/armedbear/lisp/profiler.lisp @ 13814

Last change on this file since 13814 was 13814, checked in by rschlatte, 9 years ago

implement classes standard-method, standard-reader-method in Lisp

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File size: 6.7 KB
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1;;; profiler.lisp
2;;;
3;;; Copyright (C) 2003-2005 Peter Graves
4;;; $Id: profiler.lisp 13814 2012-01-27 13:06:03Z rschlatte $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19;;;
20;;; As a special exception, the copyright holders of this library give you
21;;; permission to link this library with independent modules to produce an
22;;; executable, regardless of the license terms of these independent
23;;; modules, and to copy and distribute the resulting executable under
24;;; terms of your choice, provided that you also meet, for each linked
25;;; independent module, the terms and conditions of the license of that
26;;; module.  An independent module is a module which is not derived from
27;;; or based on this library.  If you modify this library, you may extend
28;;; this exception to your version of the library, but you are not
29;;; obligated to do so.  If you do not wish to do so, delete this
30;;; exception statement from your version.
31
32(in-package #:profiler)
33
34(export '(*hidden-functions*))
35
36(require '#:clos)
37(require '#:format)
38
39(defvar *type* nil)
40
41(defvar *granularity* 1 "Sampling interval (in milliseconds).")
42
43(defvar *hidden-functions*
44  '(funcall apply eval
45    sys::%eval sys::interactive-eval
46    tpl::repl tpl::top-level-loop))
47
48(defstruct (profile-info
49            (:constructor make-profile-info (object full-count hot-count)))
50  object
51  full-count
52  hot-count)
53
54;; Returns list of all symbols with non-zero call counts.
55(defun list-called-objects ()
56  (let ((result '()))
57    (dolist (pkg (list-all-packages))
58      (dolist (sym (sys:package-symbols pkg))
59        (unless (memq sym *hidden-functions*)
60          (when (fboundp sym)
61            (let* ((definition (fdefinition sym))
62                   (full-count (sys:call-count definition))
63                   (hot-count (sys:hot-count definition)))
64              (unless (zerop full-count)
65                (cond ((typep definition 'generic-function)
66                       (push (make-profile-info definition
67                                                full-count hot-count) result)
68                       (dolist (method
69                                 (mop::generic-function-methods definition))
70                         (let ((function (mop:method-function method)))
71                           (setf full-count (sys:call-count function))
72                           (setf hot-count (sys:hot-count function)))
73                         (unless (zerop full-count)
74                           (push (make-profile-info method full-count
75                                                    hot-count) result))))
76                      (t
77                       (push (make-profile-info sym full-count hot-count)
78                             result)))))))))
79    (remove-duplicates result :key 'profile-info-object :test 'eq)))
80
81(defun object-name (object)
82  (cond ((symbolp object)
83         object)
84        ((typep object 'generic-function)
85         (mop:generic-function-name object))
86        ((typep object 'method)
87         (list 'METHOD
88               (mop:generic-function-name (mop:method-generic-function object))
89               (mop:method-specializers object)))))
90
91(defun object-compiled-function-p (object)
92  (cond ((symbolp object)
93         (compiled-function-p (fdefinition object)))
94        ((typep object 'method)
95         (compiled-function-p (mop:method-function object)))
96        (t
97         (compiled-function-p object))))
98
99(defun show-call-count (info max-count)
100  (let* ((object (profile-info-object info))
101         (count (profile-info-full-count info)))
102    (if max-count
103        (format t "~5,1F ~8D ~S~A~%"
104                (/ (* count 100.0) max-count)
105                count
106                (object-name object)
107                (if (object-compiled-function-p object)
108                    ""
109                    " [interpreted function]"))
110        (format t "~8D ~S~A~%"
111                count
112                (object-name object)
113                (if (object-compiled-function-p object)
114                    ""
115                    " [interpreted function]")))))
116
117(defun show-hot-count (info max-count)
118  (let* ((object (profile-info-object info))
119         (count (profile-info-hot-count info)))
120    (if max-count
121        (format t "~5,1F ~8D ~S~A~%"
122                (/ (* count 100.0) max-count)
123                count
124                (object-name object)
125                (if (object-compiled-function-p object)
126                    ""
127                    " [interpreted function]"))
128        (format t "~8D ~S~A~%"
129                count
130                (object-name object)
131                (if (object-compiled-function-p object)
132                    ""
133                    " [interpreted function]")))))
134
135(defun show-call-counts ()
136  (let ((list (list-called-objects)))
137    (setf list (sort list #'< :key 'profile-info-full-count))
138    (let ((max-count nil))
139      (when (eq *type* :time)
140        (let ((last-info (car (last list))))
141          (setf max-count (if last-info
142                              (profile-info-full-count last-info)
143                              nil))
144          (when (eql max-count 0)
145            (setf max-count nil))))
146      (dolist (info list)
147        (show-call-count info max-count))))
148  (values))
149
150(defun show-hot-counts ()
151  (let ((list (list-called-objects)))
152    (setf list (sort list #'< :key 'profile-info-hot-count))
153    (let ((max-count nil))
154      (when (eq *type* :time)
155        (let ((last-info (car (last list))))
156          (setf max-count (if last-info
157                              (profile-info-hot-count last-info)
158                              nil))
159          (when (eql max-count 0)
160            (setf max-count nil))))
161      (dolist (info list)
162        (show-hot-count info max-count))))
163  (values))
164
165(defun start-profiler (&key type)
166  "Starts the profiler.
167  :TYPE may be either :TIME (statistical sampling) or :COUNT-ONLY (exact call
168  counts)."
169  (unless type
170    (setf type :time))
171  (unless (memq type '(:time :count-only))
172    (error ":TYPE must be :TIME or :COUNT-ONLY"))
173  (setf *type* type)
174  (%start-profiler type *granularity*))
175
176(defmacro with-profiling ((&key type) &body body)
177  `(unwind-protect (progn (start-profiler :type ,type) ,@body)
178                   (stop-profiler)))
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