0.pre7.113:
[sbcl.git] / src / code / gc.lisp
index 79e70df..f66fbe1 100644 (file)
        (defun ,lisp-fun ()
         (sb!alien:extern-alien ,c-var-name (sb!alien:unsigned 32))))))
 
-#!+(or cgc gencgc) (progn
-#!-sb-fluid (declaim (inline dynamic-usage))
-(def-c-var-frob dynamic-usage "bytes_allocated"))
-
+#!-gencgc
+(progn
+  ;; This is called once per PROFILEd function call, so it's worth a
+  ;; little possible space cost to reduce its time cost.
+  #!-sb-fluid
+  (declaim (inline current-dynamic-space-start))
+  (def-c-var-frob current-dynamic-space-start "current_dynamic_space"))
+
+#!-sb-fluid
+(declaim (inline dynamic-usage)) ; to reduce PROFILEd call overhead
+#!+(or cgc gencgc)
+(def-c-var-frob dynamic-usage "bytes_allocated")
 #!-(or cgc gencgc)
 (defun dynamic-usage ()
   (the (unsigned-byte 32)
        (- (sb!sys:sap-int (sb!c::dynamic-space-free-pointer))
           (current-dynamic-space-start))))
 
-#!-gencgc (progn
-#!-sb-fluid (declaim (inline current-dynamic-space-start))
-(def-c-var-frob current-dynamic-space-start "current_dynamic_space"))
-
 (defun static-space-usage ()
-  (- (* sb!vm:*static-space-free-pointer* sb!vm:word-bytes)
+  (- (* sb!vm:*static-space-free-pointer* sb!vm:n-word-bytes)
      sb!vm:static-space-start))
 
 (defun read-only-space-usage ()
-  (- (* sb!vm::*read-only-space-free-pointer* sb!vm:word-bytes)
+  (- (* sb!vm::*read-only-space-free-pointer* sb!vm:n-word-bytes)
      sb!vm:read-only-space-start))
 
 (defun control-stack-usage ()
 ;;; (We save this so that we can calculate the total number of bytes
 ;;; ever allocated by adding this to the number of bytes currently
 ;;; allocated and never freed.)
-(declaim (type pcounter *n-bytes-freed-or-purified-pcounter*))
-(defvar *n-bytes-freed-or-purified-pcounter* (make-pcounter))
+(declaim (type unsigned-byte *n-bytes-freed-or-purified*))
+(defvar *n-bytes-freed-or-purified* 0)
+(push (lambda ()
+       (setf *n-bytes-freed-or-purified* 0))
+      ;; KLUDGE: It's probably not quite safely right either to do
+      ;; this in *BEFORE-SAVE-INITIALIZATIONS* (since consing, or even
+      ;; worse, something which depended on (GET-BYTES-CONSED), might
+      ;; happen after that) or in *AFTER-SAVE-INITIALIZATIONS*. But
+      ;; it's probably not a big problem, and there seems to be no
+      ;; other obvious time to do it. -- WHN 2001-07-30
+      *after-save-initializations*)
 
 (declaim (ftype (function () unsigned-byte) get-bytes-consed))
 (defun get-bytes-consed ()
@@ -118,7 +131,7 @@ probably want either to hack in at a lower level (as the code in the
 SB-PROFILE package does), or to design a more microefficient interface
 and submit it as a patch."
   (+ (dynamic-usage)
-     (pcounter->integer *n-bytes-freed-or-purified-pcounter*)))
+     *n-bytes-freed-or-purified*))
 \f
 ;;;; variables and constants
 
@@ -127,7 +140,7 @@ and submit it as a patch."
 ;;;
 ;;; Unlike CMU CL, we don't export this variable. (There's no need to,
 ;;; since our BYTES-CONSED-BETWEEN-GCS function is SETFable.)
-(defvar *bytes-consed-between-gcs* (* 2 (expt 10 6)))
+(defvar *bytes-consed-between-gcs* (* 4 (expt 10 6)))
 (declaim (type index *bytes-consed-between-gcs*))
 
 ;;;; GC hooks
@@ -190,9 +203,11 @@ and submit it as a patch."
 \f
 (defun default-gc-notify-before (notify-stream bytes-in-use)
   (declare (type stream notify-stream))
-  (format notify-stream
-         "~&; GC is beginning with ~:D bytes in use.~%"
-         bytes-in-use)
+  (format
+   notify-stream
+   "~&; GC is beginning with ~:D bytes in use at internal runtime ~:D.~%"
+   bytes-in-use
+   (get-internal-run-time))
   (finish-output notify-stream))
 (defparameter *gc-notify-before* #'default-gc-notify-before
   #!+sb-doc
@@ -207,31 +222,30 @@ and submit it as a patch."
                                new-trigger)
   (declare (type stream notify-stream))
   (format notify-stream
-         "~&; GC has finished with ~:D bytes in use (~:D bytes freed).~%"
+         "~&; GC has finished with ~:D bytes in use (~:D bytes freed)~@
+           ; at internal runtime ~:D. The new GC trigger is ~:D bytes.~%"
          bytes-retained
-         bytes-freed)
-  (format notify-stream
-         "~&; The new GC trigger is ~:D bytes.~%"
+         bytes-freed
+         (get-internal-run-time)
          new-trigger)
   (finish-output notify-stream))
 (defparameter *gc-notify-after* #'default-gc-notify-after
   #!+sb-doc
-  "The function bound to this variable is invoked after GC'ing with
-the value of *GC-NOTIFY-STREAM*, the amount of dynamic usage (in
-bytes) now free, the number of bytes freed by the GC, and the new GC
-trigger threshold. The function should notify the user that the system
-has finished GC'ing.")
+  "The function bound to this variable is invoked after GC'ing with the
+value of *GC-NOTIFY-STREAM*, the amount of dynamic usage (in bytes) now
+free, the number of bytes freed by the GC, and the new GC trigger
+threshold; or if *GC-NOTIFY-STREAM* is NIL, it's not invoked. The
+function should notify the user that the system has finished GC'ing.")
 \f
 ;;;; internal GC
 
-(sb!alien:def-alien-routine collect-garbage sb!c-call:int
+(sb!alien:define-alien-routine collect-garbage sb!c-call:int
   #!+gencgc (last-gen sb!c-call:int))
 
-
-(sb!alien:def-alien-routine set-auto-gc-trigger sb!c-call:void
+(sb!alien:define-alien-routine set-auto-gc-trigger sb!c-call:void
   (dynamic-usage sb!c-call:unsigned-long))
 
-(sb!alien:def-alien-routine clear-auto-gc-trigger sb!c-call:void)
+(sb!alien:define-alien-routine clear-auto-gc-trigger sb!c-call:void)
 
 ;;; This variable contains the function that does the real GC. This is
 ;;; for low-level GC experimentation. Do not touch it if you do not
@@ -240,7 +254,7 @@ has finished GC'ing.")
 \f
 ;;;; SUB-GC
 
-;;; Used to carefully invoke hooks.
+;;; This is used to carefully invoke hooks.
 (eval-when (:compile-toplevel :execute)
   (sb!xc:defmacro carefully-funcall (function &rest args)
     `(handler-case (funcall ,function ,@args)
@@ -271,7 +285,7 @@ has finished GC'ing.")
                                  *soft-heap-limit*)))
       (when soft-heap-limit-exceeded?
        (cerror "Continue with GC."
-               "soft heap limit exceeded (temporary new limit=~D)"
+               "soft heap limit exceeded (temporary new limit=~W)"
                *soft-heap-limit*))
       (when (and *gc-trigger* (> pre-gc-dynamic-usage *gc-trigger*))
        (setf *need-to-collect-garbage* t))
@@ -334,8 +348,8 @@ has finished GC'ing.")
                   (eff-n-bytes-freed (max 0 n-bytes-freed)))
              (declare (ignore ignore-me))
              (/show0 "got (DYNAMIC-USAGE) and EFF-N-BYTES-FREED")
-             (incf-pcounter *n-bytes-freed-or-purified-pcounter*
-                            eff-n-bytes-freed)
+             (incf *n-bytes-freed-or-purified*
+                   eff-n-bytes-freed)
              (/show0 "clearing *NEED-TO-COLLECT-GARBAGE*")
              (setf *need-to-collect-garbage* nil)
              (/show0 "calculating NEW-GC-TRIGGER")