Fix the nursery size calculation when -N is used with -H

[ghc-hetmet.git] / rts / sm / GC.c

diff --git a/rts/sm/GC.c b/rts/sm/GC.c
index febede6..97f391c 100644 (file)
--- a/rts/sm/GC.c
+++ b/rts/sm/GC.c
@@ -237,7 +237,8 @@ GarbageCollect (rtsBool force_major_gc,
   n = initialise_N(force_major_gc);
 
 #if defined(THREADED_RTS)
-  work_stealing = RtsFlags.ParFlags.parGcLoadBalancing;
+  work_stealing = RtsFlags.ParFlags.parGcLoadBalancingEnabled &&
+                  N >= RtsFlags.ParFlags.parGcLoadBalancingGen;
       // It's not always a good idea to do load balancing in parallel
       // GC.  In particular, for a parallel program we don't want to
       // lose locality by moving cached data into another CPU's cache
@@ -278,7 +279,7 @@ GarbageCollect (rtsBool force_major_gc,
 
 #ifdef DEBUG
   // check for memory leaks if DEBUG is on 
-  memInventory(traceClass(DEBUG_gc));
+  memInventory(DEBUG_gc);
 #endif
 
   // check stack sanity *before* GC
@@ -781,7 +782,7 @@ SET_GCT(gc_threads[0]);
 
 #ifdef DEBUG
   // check for memory leaks if DEBUG is on 
-  memInventory(traceClass(DEBUG_gc));
+  memInventory(DEBUG_gc);
 #endif
 
 #ifdef RTS_GTK_FRONTPANEL
@@ -1622,6 +1623,8 @@ resize_generations (void)
 static void
 resize_nursery (void)
 {
+    lnat min_nursery = RtsFlags.GcFlags.minAllocAreaSize * n_capabilities;
+
     if (RtsFlags.GcFlags.generations == 1)
     {   // Two-space collector:
        nat blocks;
@@ -1664,9 +1667,9 @@ resize_nursery (void)
        else
        {
            blocks *= RtsFlags.GcFlags.oldGenFactor;
-           if (blocks < RtsFlags.GcFlags.minAllocAreaSize)
+           if (blocks < min_nursery)
            {
-               blocks = RtsFlags.GcFlags.minAllocAreaSize;
+               blocks = min_nursery;
            }
        }
        resizeNurseries(blocks);
@@ -1713,8 +1716,8 @@ resize_nursery (void)
                (((long)RtsFlags.GcFlags.heapSizeSuggestion - (long)needed) * 100) /
                (100 + (long)g0s0_pcnt_kept);
            
-           if (blocks < (long)RtsFlags.GcFlags.minAllocAreaSize) {
-               blocks = RtsFlags.GcFlags.minAllocAreaSize;
+           if (blocks < (long)min_nursery) {
+               blocks = min_nursery;
            }
            
            resizeNurseries((nat)blocks);