tweak tail merging logic

[sbcl.git] / contrib / sb-sprof / sb-sprof.lisp

diff --git a/contrib/sb-sprof/sb-sprof.lisp b/contrib/sb-sprof/sb-sprof.lisp
index b7a9dcc..dd1760c 100644 (file)
--- a/contrib/sb-sprof/sb-sprof.lisp
+++ b/contrib/sb-sprof/sb-sprof.lisp
@@ -360,10 +360,8 @@ profiling")
 (defvar *alloc-region-size*
   #-gencgc
   (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-bytes))
+  (max sb-vm:gencgc-alloc-granularity sb-vm:gencgc-card-bytes))
 (declaim (type number *alloc-region-size*))
 
 (defvar *samples* nil)
@@ -492,9 +490,10 @@ profiling")
 
 (defun profiled-threads ()
   (let ((profiled-threads *profiled-threads*))
-    (if (eq :all profiled-threads)
-        (remove *timer-thread* (sb-thread:list-all-threads))
-        profiled-threads)))
+    (remove *timer-thread*
+            (if (eq :all profiled-threads)
+                (sb-thread:list-all-threads)
+                profiled-threads))))
 
 (defun profiled-thread-p (thread)
   (let ((profiled-threads *profiled-threads*))
@@ -508,13 +507,14 @@ profiling")
   (defvar *profiler-lock* (sb-thread:make-mutex :name "Statistical Profiler"))
   (defvar *distribution-lock* (sb-thread:make-mutex :name "Wallclock profiling lock"))
 
-  (define-alien-routine pthread-kill int (signal int) (os-thread unsigned-long))
+  (declaim (inline pthread-kill))
+  (define-alien-routine pthread-kill int (os-thread unsigned-long) (signal int))
 
   ;;; A random thread will call this in response to either a timer firing,
   ;;; This in turn will distribute the notice to those threads we are
   ;;; interested using SIGPROF.
   (defun thread-distribution-handler ()
-    (declare (optimize sb-c::merge-tail-calls))
+    (declare (optimize speed (space 0)))
     (when *sampling*
       #+sb-thread
       (let ((lock *distribution-lock*))