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ggc-page.c (GGC_MIN_LAST_ALLOCATED): New.

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* ggc-page.c (GGC_MIN_LAST_ALLOCATED): New.
        (init_ggc): Use it instead of a constant.
        (ggc_collect): Bound allocated_last_gc by it.

From-SVN: r29685
This commit is contained in:
Richard Henderson 1999-09-27 23:05:53 -07:00 committed by Richard Henderson
parent 82bd61bdd4
commit a70261eec1
2 changed files with 13 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Mon Sep 27 23:03:16 1999 Richard Henderson <rth@cygnus.com>
* ggc-page.c (GGC_MIN_LAST_ALLOCATED): New.
(init_ggc): Use it instead of a constant.
(ggc_collect): Bound allocated_last_gc by it.
Mon Sep 27 19:06:04 1999 Jeffrey A Law (law@cygnus.com)
* fixinc/fixinc.irix (stdio.h): Hack stdio.h to avoid problems

10
gcc/ggc-page.c
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@ -255,6 +255,10 @@ static struct globals
one) before collection is performed. */
#define GGC_MIN_EXPAND_FOR_GC (1.3)
/* Bound `allocated_last_gc' to 4MB, to prevent the memory expansion
test from triggering too often when the heap is small. */
#define GGC_MIN_LAST_ALLOCATED (4 * 1024 * 1024)
static page_entry *lookup_page_table_entry PROTO ((void *));
static void set_page_table_entry PROTO ((void *, page_entry *));
@ -724,9 +728,7 @@ init_ggc ()
G.debug_file = stdout;
#endif
/* Set the initial allocation to 4MB, so no collection will be
performed until the heap is somewhat larger than 4 MB. */
G.allocated_last_gc = 4 * 1024 * 1024;
G.allocated_last_gc = GGC_MIN_LAST_ALLOCATED;
empty_string = ggc_alloc_string ("", 0);
ggc_add_string_root (&empty_string, 1);
@ -1034,6 +1036,8 @@ ggc_collect ()
#endif
G.allocated_last_gc = G.allocated;
if (G.allocated_last_gc < GGC_MIN_LAST_ALLOCATED)
G.allocated_last_gc = GGC_MIN_LAST_ALLOCATED;
time = get_run_time () - time;
gc_time += time;