forked from rpms/glibc
36 lines
975 B
Diff
36 lines
975 B
Diff
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* malloc/arena.c (arena_get2): Avoid unnecessarily
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retrieving #cpus from /proc.
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* malloc/malloc.c (mALLOPt): Clamp arena_test based on
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the value of arena_max.
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diff --git a/malloc/arena.c b/malloc/arena.c
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index cb8548b..00f1da5 100644
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--- a/malloc/arena.c
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+++ b/malloc/arena.c
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@@ -828,7 +828,7 @@ arena_get2(mstate a_tsd, size_t size)
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{
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if (mp_.arena_max != 0)
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narenas_limit = mp_.arena_max;
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- else
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+ else if (narenas > mp_.arena_test)
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{
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int n = __get_nprocs ();
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diff --git a/malloc/malloc.c b/malloc/malloc.c
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index 8608083..f8d32da 100644
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -4842,6 +4842,12 @@ int mALLOPt(int param_number, int value)
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break;
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#endif
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}
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+#ifdef PER_THREAD
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+ /* Clamp ARENA_TEST from ARENA_MAX to avoid creating too many
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+ arenas. */
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+ if (mp_.arena_max > 0 && mp_.arena_max <= mp_.arena_test)
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+ mp_.arena_test = mp_.arena_max - 1;
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+#endif
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(void)mutex_unlock(&av->mutex);
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return res;
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}
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