From 1fd69ae1a7846062ed915d6e5b1e24bf757bc320 Mon Sep 17 00:00:00 2001
From: bdemsky <bdemsky>
Date: Tue, 7 Apr 2009 23:46:37 +0000
Subject: [PATCH] add support for garbage collection statistics

---
 Robust/src/Runtime/garbage.c | 11 ++++++++---
 Robust/src/buildscript       |  4 ++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Robust/src/Runtime/garbage.c b/Robust/src/Runtime/garbage.c
index 2039ee3a..0f6938bd 100644
--- a/Robust/src/Runtime/garbage.c
+++ b/Robust/src/Runtime/garbage.c
@@ -22,10 +22,10 @@
 
 #define NUMPTRS 100
 
-#define INITIALHEAPSIZE 32*1024*1024
-#define GCPOINT(x) ((int)((x)*0.9))
+#define INITIALHEAPSIZE 128*1024*1024
+#define GCPOINT(x) ((int)((x)*0.95))
 /* This define takes in how full the heap is initially and returns a new heap size to use */
-#define HEAPSIZE(x,y) (((int)((x)/0.6))+y)
+#define HEAPSIZE(x,y) ((int)(x+y))*2
 
 #ifdef TASK
 extern struct genhashtable * activetasks;
@@ -636,6 +636,11 @@ void * mygcmalloc(struct garbagelist * stackptr, int size) {
     /* Update stat on previous gc size */
     lastgcsize=(to_heapptr-to_heapbase)+size;
 
+#ifdef GARBAGESTATS
+    printf("Garbage collected: Old bytes: %u\n", curr_heapptr-curr_heapbase);
+    printf("New space: %u\n", to_heapptr-to_heapbase);
+    printf("Total space: %u\n", to_heaptop-to_heapbase);
+#endif
     /* Flip to/curr heaps */
     {
       void * tmp=to_heapbase;
diff --git a/Robust/src/buildscript b/Robust/src/buildscript
index f329e9bc..02ddb88e 100755
--- a/Robust/src/buildscript
+++ b/Robust/src/buildscript
@@ -35,6 +35,7 @@ echo -optional enable optional
 echo -debug generate debug symbols
 echo -prefetch do prefetch analysis
 echo -transstats generates transaction stats on commits and aborts
+echo -garbagestats Print garbage collection statistics
 echo -webinterface enable web interface
 echo -runtimedebug printout runtime debug messages
 echo "-thread use support for multiple threads"
@@ -113,6 +114,9 @@ shift
 elif [[ $1 = '-nojava' ]]
 then
 NOJAVA=true
+elif [[ $1 = '-garbagestats' ]]
+then
+EXTRAOPTIONS="$EXTRAOPTIONS -DGARBAGESTATS"
 elif [[ $1 = '-fastcheck' ]]
 then
 EXTRAOPTIONS="$EXTRAOPTIONS -DFASTCHECK"
-- 
2.34.1