Changeset: b21b2a2fbe50 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=b21b2a2fbe50
Modified Files:
gdk/gdk_heap.c
Branch: Nov2019
Log Message:
Don't force allocations smaller than 4 pages to be malloced.
Using default settings they will still be malloced, though.
diffs (29 lines):
diff --git a/gdk/gdk_heap.c b/gdk/gdk_heap.c
--- a/gdk/gdk_heap.c
+++ b/gdk/gdk_heap.c
@@ -110,7 +110,6 @@ HEAPalloc(Heap *h, size_t nitems, size_t
return GDK_FAIL;
}
if (GDKinmemory() ||
- h->size < 4 * GDK_mmap_pagesize ||
(GDKmem_cursize() + h->size < GDK_mem_maxsize &&
h->size < (h->farmid == 0 ? GDK_mmap_minsize_persistent :
GDK_mmap_minsize_transient))) {
h->storage = STORE_MEM;
@@ -204,7 +203,7 @@ HEAPextend(Heap *h, size_t size, bool ma
/* extend a malloced heap, possibly switching over to
* file-mapped storage */
Heap bak = *h;
- bool exceeds_swap = size >= 4 * GDK_mmap_pagesize && size +
GDKmem_cursize() >= GDK_mem_maxsize;
+ bool exceeds_swap = size + GDKmem_cursize() >= GDK_mem_maxsize;
bool must_mmap = !GDKinmemory() && (exceeds_swap ||
h->newstorage != STORE_MEM || size >= (h->farmid == 0 ?
GDK_mmap_minsize_persistent : GDK_mmap_minsize_transient));
h->size = size;
@@ -610,7 +609,7 @@ HEAPload_intern(Heap *h, const char *nme
char *srcpath, *dstpath, *tmp;
int t0;
- h->storage = h->newstorage = h->size < 4 * GDK_mmap_pagesize ?
STORE_MEM : STORE_MMAP;
+ h->storage = h->newstorage = h->size < GDK_mmap_minsize_persistent ?
STORE_MEM : STORE_MMAP;
minsize = (h->size + GDK_mmap_pagesize - 1) & ~(GDK_mmap_pagesize - 1);
if (h->storage != STORE_MEM && minsize != h->size)
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