X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mono%2Fsgen%2Fsgen-simple-nursery.c;h=29ab4ed135ddd54d93b74ef707d9bca63e7a6303;hb=56a1881bff83365978e7eb30d18da8809b56c1e2;hp=bc8aee7044c8a12baaa684e9411893dedf9f567a;hpb=dcf4d628819f1ae906a8eec6b96fc7012c37e32c;p=mono.git

diff --git a/mono/sgen/sgen-simple-nursery.c b/mono/sgen/sgen-simple-nursery.c
index bc8aee7044c..29ab4ed135d 100644
--- a/mono/sgen/sgen-simple-nursery.c
+++ b/mono/sgen/sgen-simple-nursery.c
@@ -1,5 +1,6 @@
-/*
- * sgen-simple-nursery.c: Simple always promote nursery.
+/**
+ * \file
+ * Simple always promote nursery.
  *
  * Copyright 2001-2003 Ximian, Inc
  * Copyright 2003-2010 Novell, Inc.
@@ -18,7 +19,9 @@
 #include "mono/sgen/sgen-protocol.h"
 #include "mono/sgen/sgen-layout-stats.h"
 #include "mono/sgen/sgen-client.h"
+#include "mono/sgen/sgen-workers.h"
 #include "mono/utils/mono-memory-model.h"
+#include "mono/utils/mono-proclib.h"
 
 static inline GCObject*
 alloc_for_promotion (GCVTable vtable, GCObject *obj, size_t objsize, gboolean has_references)
@@ -27,6 +30,19 @@ alloc_for_promotion (GCVTable vtable, GCObject *obj, size_t objsize, gboolean ha
 	return major_collector.alloc_object (vtable, objsize, has_references);
 }
 
+static inline GCObject*
+alloc_for_promotion_par (GCVTable vtable, GCObject *obj, size_t objsize, gboolean has_references)
+{
+	/*
+	 * FIXME
+	 * Note that the stat is not precise. total_promoted_size incrementing is not atomic and
+	 * even in that case, the same object might be promoted simultaneously by different workers
+	 * leading to one of the allocated major object to be discarded.
+	 */
+	total_promoted_size += objsize;
+	return major_collector.alloc_object_par (vtable, objsize, has_references);
+}
+
 static SgenFragment*
 build_fragments_get_exclude_head (void)
 {
@@ -56,7 +72,14 @@ clear_fragments (void)
 static void
 init_nursery (SgenFragmentAllocator *allocator, char *start, char *end)
 {
-	sgen_fragment_allocator_add (allocator, start, end);
+	char *nursery_limit = sgen_nursery_start + sgen_nursery_size;
+
+	if (start < nursery_limit && end > nursery_limit) {
+		sgen_fragment_allocator_add (allocator, start, nursery_limit);
+		sgen_fragment_allocator_add (allocator, nursery_limit, end);
+	} else {
+		sgen_fragment_allocator_add (allocator, start, end);
+	}
 }
 
 
@@ -64,7 +87,9 @@ init_nursery (SgenFragmentAllocator *allocator, char *start, char *end)
 
 #define collector_pin_object(obj, queue) sgen_pin_object (obj, queue);
 #define COLLECTOR_SERIAL_ALLOC_FOR_PROMOTION alloc_for_promotion
+#define COLLECTOR_PARALLEL_ALLOC_FOR_PROMOTION alloc_for_promotion_par
 
+#define COPY_OR_MARK_PARALLEL
 #include "sgen-copy-object.h"
 
 #define SGEN_SIMPLE_NURSERY
@@ -79,6 +104,19 @@ fill_serial_ops (SgenObjectOperations *ops)
 	FILL_MINOR_COLLECTOR_SCAN_OBJECT (ops);
 }
 
+#define SGEN_SIMPLE_PAR_NURSERY
+
+#include "sgen-minor-copy-object.h"
+#include "sgen-minor-scan-object.h"
+
+static void
+fill_parallel_ops (SgenObjectOperations *ops)
+{
+	ops->copy_or_mark_object = SERIAL_COPY_OBJECT;
+	FILL_MINOR_COLLECTOR_SCAN_OBJECT (ops);
+}
+
+#undef SGEN_SIMPLE_PAR_NURSERY
 #define SGEN_CONCURRENT_MAJOR
 
 #include "sgen-minor-copy-object.h"
@@ -91,12 +129,29 @@ fill_serial_with_concurrent_major_ops (SgenObjectOperations *ops)
 	FILL_MINOR_COLLECTOR_SCAN_OBJECT (ops);
 }
 
+#define SGEN_SIMPLE_PAR_NURSERY
+
+#include "sgen-minor-copy-object.h"
+#include "sgen-minor-scan-object.h"
+
+static void
+fill_parallel_with_concurrent_major_ops (SgenObjectOperations *ops)
+{
+	ops->copy_or_mark_object = SERIAL_COPY_OBJECT;
+	FILL_MINOR_COLLECTOR_SCAN_OBJECT (ops);
+}
+
 void
-sgen_simple_nursery_init (SgenMinorCollector *collector)
+sgen_simple_nursery_init (SgenMinorCollector *collector, gboolean parallel)
 {
+	if (mono_cpu_count () <= 1)
+		parallel = FALSE;
+
 	collector->is_split = FALSE;
+	collector->is_parallel = parallel;
 
 	collector->alloc_for_promotion = alloc_for_promotion;
+	collector->alloc_for_promotion_par = alloc_for_promotion_par;
 
 	collector->prepare_to_space = prepare_to_space;
 	collector->clear_fragments = clear_fragments;
@@ -107,6 +162,15 @@ sgen_simple_nursery_init (SgenMinorCollector *collector)
 
 	fill_serial_ops (&collector->serial_ops);
 	fill_serial_with_concurrent_major_ops (&collector->serial_ops_with_concurrent_major);
+	fill_parallel_ops (&collector->parallel_ops);
+	fill_parallel_with_concurrent_major_ops (&collector->parallel_ops_with_concurrent_major);
+
+	/*
+	 * The nursery worker context is created first so it will have priority over
+	 * concurrent mark and concurrent sweep.
+	 */
+	if (parallel)
+		sgen_workers_create_context (GENERATION_NURSERY, mono_cpu_count ());
 }