2 * Copyright Xamarin Inc (http://www.xamarin.com)
4 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
10 #include "sgen/sgen-gc.h"
11 #include "sgen/sgen-layout-stats.h"
12 #include <mono/utils/mono-compiler.h>
14 #ifdef SGEN_OBJECT_LAYOUT_STATISTICS
16 #define NUM_HISTOGRAM_ENTRIES (1 << SGEN_OBJECT_LAYOUT_BITMAP_BITS)
18 static unsigned long histogram
[NUM_HISTOGRAM_ENTRIES
];
19 static unsigned long count_bitmap_overflow
;
20 static unsigned long count_ref_array
;
21 static unsigned long count_vtype_array
;
24 sgen_object_layout_scanned_bitmap (unsigned int bitmap
)
26 g_assert (!(bitmap
>> SGEN_OBJECT_LAYOUT_BITMAP_BITS
));
31 sgen_object_layout_scanned_bitmap_overflow (void)
33 ++count_bitmap_overflow
;
37 sgen_object_layout_scanned_ref_array (void)
43 sgen_object_layout_scanned_vtype_array (void)
49 sgen_object_layout_dump (FILE *out
)
53 for (i
= 0; i
< NUM_HISTOGRAM_ENTRIES
; ++i
) {
56 fprintf (out
, "%d %lu\n", i
, histogram
[i
]);
58 fprintf (out
, "bitmap-overflow %lu\n", count_bitmap_overflow
);
59 fprintf (out
, "ref-array %lu\n", count_ref_array
);
60 fprintf (out
, "vtype-array %lu\n", count_vtype_array
);
64 MONO_EMPTY_SOURCE_FILE (sgen_layout_stats
);
65 #endif /* SGEN_OBJECT_LAYOUT_STATISTICS */