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ggc-page.c (size_lookup): Increase minimum allocation size to eight bytes.

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* ggc-page.c (size_lookup): Increase minimum allocation size
	to eight bytes.
	(ggc_print_statistics): Report size of each bin in bytes, not
	as its order; there is no longer a direct relationship.

From-SVN: r42736
This commit is contained in:
Zack Weinberg 2001-05-31 05:05:19 +00:00 • committed by Zack Weinberg
parent 310668e86d
commit 9fd51e6700
2 changed files with 12 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2001-05-30 Zack Weinberg <zackw@stanford.edu>
* ggc-page.c (size_lookup): Increase minimum allocation size
to eight bytes.
(ggc_print_statistics): Report size of each bin in bytes, not
as its order; there is no longer a direct relationship.
2001-05-31 Jan van Male <jan.vanmale@fenk.wau.nl>
* extend.texi: Fix formating of examples, eliminate some

10
gcc/ggc-page.c
View file

@ -826,11 +826,11 @@ release_pages ()
}
/* This table provides a fast way to determine ceil(log_2(size)) for
allocation requests. The minimum allocation size is four bytes. */
allocation requests. The minimum allocation size is eight bytes. */
static unsigned char size_lookup[257] =
{
2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4,
{
3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4,
4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
@ -1446,7 +1446,7 @@ ggc_print_statistics ()
/* Collect some information about the various sizes of
allocation. */
fprintf (stderr, "\n%-5s %10s %10s %10s\n",
"Log", "Allocated", "Used", "Overhead");
"Size", "Allocated", "Used", "Overhead");
for (i = 0; i < NUM_ORDERS; ++i)
{
page_entry *p;
@ -1472,7 +1472,7 @@ ggc_print_statistics ()
overhead += (sizeof (page_entry) - sizeof (long)
+ BITMAP_SIZE (OBJECTS_PER_PAGE (i) + 1));
}
fprintf (stderr, "%-5d %10ld%c %10ld%c %10ld%c\n", i,
fprintf (stderr, "%-5d %10ld%c %10ld%c %10ld%c\n", OBJECT_SIZE (i),
SCALE (allocated), LABEL (allocated),
SCALE (in_use), LABEL (in_use),
SCALE (overhead), LABEL (overhead));