X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fgc.lisp;h=45577a0db9f9e9bfcef4a5bbad2da146991f03e5;hb=92a258eda6d6f0cadd1251200285671ec92aa45f;hp=f66fbe171ef731e885d2b2f64c2929e0901f2c33;hpb=e33fb894f991b2926d8f3bace9058e4c0b2c3a37;p=sbcl.git

diff --git a/src/code/gc.lisp b/src/code/gc.lisp
index f66fbe1..45577a0 100644
--- a/src/code/gc.lisp
+++ b/src/code/gc.lisp
@@ -50,10 +50,12 @@
      sb!vm:read-only-space-start))
 
 (defun control-stack-usage ()
-  #!-x86 (- (sb!sys:sap-int (sb!c::control-stack-pointer-sap))
-            sb!vm:control-stack-start)
-  #!+x86 (- sb!vm:control-stack-end
-	    (sb!sys:sap-int (sb!c::control-stack-pointer-sap))))
+  #!-stack-grows-downward-not-upward
+  (- (sb!sys:sap-int (sb!c::control-stack-pointer-sap))
+     sb!vm:control-stack-start)
+  #!+stack-grows-downward-not-upward
+  (- sb!vm:control-stack-end
+     (sb!sys:sap-int (sb!c::control-stack-pointer-sap))))
 
 (defun binding-stack-usage ()
   (- (sb!sys:sap-int (sb!c::binding-stack-pointer-sap))
@@ -74,7 +76,7 @@
   (room-minimal-info)
   (sb!vm:memory-usage :count-spaces '(:dynamic)
 		      :print-spaces t
-		      :cutoff 0.05s0
+		      :cutoff 0.05f0
 		      :print-summary nil))
 
 (defun room-maximal-info ()
@@ -140,7 +142,14 @@ 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* (* 4 (expt 10 6)))
+(defvar *bytes-consed-between-gcs*
+  #!+gencgc (* 4 (expt 10 6))
+  ;; Stop-and-copy GC is really really slow when used too often. CSR
+  ;; reported that even on his old 64 Mb SPARC, 20 Mb is much faster
+  ;; than 4 Mb when rebuilding SBCL ca. 0.7.1. For modern machines
+  ;; with >> 128 Mb memory, the optimum could be significantly more
+  ;; than this, but at least 20 Mb should be better than 4 Mb.
+  #!-gencgc (* 20 (expt 10 6)))
 (declaim (type index *bytes-consed-between-gcs*))
 
 ;;;; GC hooks
@@ -239,13 +248,13 @@ function should notify the user that the system has finished GC'ing.")
 
 ;;;; internal GC
 
-(sb!alien:define-alien-routine collect-garbage sb!c-call:int
-  #!+gencgc (last-gen sb!c-call:int))
+(sb!alien:define-alien-routine collect-garbage sb!alien:int
+  #!+gencgc (last-gen sb!alien:int))
 
-(sb!alien:define-alien-routine set-auto-gc-trigger sb!c-call:void
-  (dynamic-usage sb!c-call:unsigned-long))
+(sb!alien:define-alien-routine set-auto-gc-trigger sb!alien:void
+  (dynamic-usage sb!alien:unsigned-long))
 
-(sb!alien:define-alien-routine clear-auto-gc-trigger sb!c-call:void)
+(sb!alien:define-alien-routine clear-auto-gc-trigger sb!alien: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