X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=contrib%2Fsb-sprof%2Fsb-sprof.lisp;h=ff0f4b90bfe89c55e14b69f832dfacc20645881e;hb=a42922aef908a1b45ae5420d51b2ca7ee1bafb9e;hp=d5a367893c3481c11f6189c23656420b09de3eb6;hpb=355e6c09a8f7f528a838f7a50b99ad77811b51a2;p=sbcl.git

diff --git a/contrib/sb-sprof/sb-sprof.lisp b/contrib/sb-sprof/sb-sprof.lisp
index d5a3678..ff0f4b9 100644
--- a/contrib/sb-sprof/sb-sprof.lisp
+++ b/contrib/sb-sprof/sb-sprof.lisp
@@ -297,6 +297,20 @@
   ;; number of times the call was sampled
   (count 1 :type sb-int:index))
 
+(defvar *sample-interval* 0.01
+  "Default number of seconds between samples.")
+(declaim (type number *sample-interval*))
+
+(defvar *alloc-interval* 4
+  "Default number of allocation region openings between samples.")
+(declaim (type number *alloc-interval*))
+
+(defvar *max-samples* 50000
+  "Default number of traces taken. This variable is somewhat misnamed:
+each trace may actually consist of an arbitrary number of samples, depending
+on the depth of the call stack.")
+(declaim (type sb-int:index *max-samples*))
+
 ;;; Encapsulate all the information about a sampling run
 (defstruct (samples)
   ;; When this vector fills up, we allocate a new one and copy over
@@ -339,28 +353,14 @@
 profiling")
 (declaim (type (member :cpu :alloc) *sampling-mode*))
 
-(defvar *sample-interval* 0.01
-  "Default number of seconds between samples.")
-(declaim (number *sample-interval*))
-
 (defvar *alloc-region-size*
   #-gencgc
-  4096
+  (get-page-size)
   ;; This hardcoded 2 matches the one in gc_find_freeish_pages. It's not
   ;; really worth genesifying.
   #+gencgc
   (* 2 sb-vm:gencgc-page-size))
-(declaim (number *alloc-region-size*))
-
-(defvar *alloc-interval* 4
-  "Default number of allocation region openings between samples.")
-(declaim (number *alloc-interval*))
-
-(defvar *max-samples* 50000
-  "Default number of traces taken. This variable is somewhat misnamed:
-each trace may actually consist of an arbitrary number of samples, depending
-on the depth of the call stack.")
-(declaim (type sb-int:index *max-samples*))
+(declaim (type number *alloc-region-size*))
 
 (defvar *samples* nil)
 (declaim (type (or null samples) *samples*))
@@ -556,6 +556,7 @@ on the depth of the call stack.")
         (sb-sys:without-gcing
           (with-alien ((scp (* os-context-t) :local scp))
             (locally (declare (optimize (inhibit-warnings 2)))
+              (incf (samples-trace-count samples))
               (record-trace-start samples)
               (let* ((pc-ptr (sb-vm:context-pc scp))
                      (fp (sb-vm::context-register scp #.sb-vm::cfp-offset))