Changeset: e382495c0ff2 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=e382495c0ff2
Modified Files:
gdk/gdk_heap.c
Branch: Jul2017
Log Message:
Don't keep doubling the size of the vheap.
Instead, increase the heap with 1MiB or the size required to allocate
the new item, whichever is more.
diffs (23 lines):
diff --git a/gdk/gdk_heap.c b/gdk/gdk_heap.c
--- a/gdk/gdk_heap.c
+++ b/gdk/gdk_heap.c
@@ -1024,7 +1024,8 @@ HEAP_malloc(Heap *heap, size_t nbytes)
size_t newsize;
assert(heap->free + MAX(heap->free, nbytes) <= VAR_MAX);
- newsize = (size_t) roundup_8(heap->free + MAX(heap->free,
nbytes));
+ newsize = MIN(heap->free, (size_t) 1 << 20);
+ newsize = (size_t) roundup_8(heap->free + MAX(newsize, nbytes));
assert(heap->free <= VAR_MAX);
block = (size_t) heap->free; /* current end-of-heap */
@@ -1032,8 +1033,7 @@ HEAP_malloc(Heap *heap, size_t nbytes)
fprintf(stderr, "#No block found\n");
#endif
- /* Double the size of the heap.
- * TUNE: increase heap by different amount. */
+ /* Increase the size of the heap. */
HEAPDEBUG fprintf(stderr, "#HEAPextend in HEAP_malloc %s "
SZFMT " " SZFMT "\n", heap->filename, heap->size, newsize);
if (HEAPextend(heap, newsize, FALSE) != GDK_SUCCEED)
return 0;
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