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30 lines
973 B
Diff
30 lines
973 B
Diff
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diff --git a/malloc/malloc.c b/malloc/malloc.c
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index f8e7250..de6d7fa 100644
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -4146,6 +4146,7 @@ _int_free (mstate av, mchunkptr p, int have_lock)
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mchunkptr bck; /* misc temp for linking */
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mchunkptr fwd; /* misc temp for linking */
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+ static int alternate;
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size = chunksize (p);
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/* Little security check which won't hurt performance: the
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@@ -4364,8 +4365,14 @@ _int_free (mstate av, mchunkptr p, int have_lock)
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if (av == &main_arena) {
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#ifndef MORECORE_CANNOT_TRIM
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if ((unsigned long)(chunksize(av->top)) >=
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- (unsigned long)(mp_.trim_threshold))
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- systrim(mp_.top_pad, av);
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+ (unsigned long)(mp_.trim_threshold)) {
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+ if (alternate) {
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+ systrim(mp_.top_pad, av);
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+ alternate = 0;
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+ } else {
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+ alternate = 1;
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+ }
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+ }
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#endif
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} else {
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/* Always try heap_trim(), even if the top chunk is not
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