3 * Copyright Xamarin Inc (http://www.xamarin.com)
5 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
11 #include "sgen/sgen-gc.h"
12 #include "sgen/sgen-layout-stats.h"
13 #include <mono/utils/mono-compiler.h>
15 #ifdef SGEN_OBJECT_LAYOUT_STATISTICS
17 #define NUM_HISTOGRAM_ENTRIES (1 << SGEN_OBJECT_LAYOUT_BITMAP_BITS)
19 static unsigned long histogram [NUM_HISTOGRAM_ENTRIES];
20 static unsigned long count_bitmap_overflow;
21 static unsigned long count_ref_array;
22 static unsigned long count_vtype_array;
25 sgen_object_layout_scanned_bitmap (unsigned int bitmap)
27 g_assert (!(bitmap >> SGEN_OBJECT_LAYOUT_BITMAP_BITS));
32 sgen_object_layout_scanned_bitmap_overflow (void)
34 ++count_bitmap_overflow;
38 sgen_object_layout_scanned_ref_array (void)
44 sgen_object_layout_scanned_vtype_array (void)
50 sgen_object_layout_dump (FILE *out)
54 for (i = 0; i < NUM_HISTOGRAM_ENTRIES; ++i) {
57 fprintf (out, "%d %lu\n", i, histogram [i]);
59 fprintf (out, "bitmap-overflow %lu\n", count_bitmap_overflow);
60 fprintf (out, "ref-array %lu\n", count_ref_array);
61 fprintf (out, "vtype-array %lu\n", count_vtype_array);
65 MONO_EMPTY_SOURCE_FILE (sgen_layout_stats);
66 #endif /* SGEN_OBJECT_LAYOUT_STATISTICS */