---
mod/silverbox/box.c | 16 ++++++++++++----
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/mod/silverbox/box.c b/mod/silverbox/box.c
index 8c7243a..665624c 100644
--- a/mod/silverbox/box.c
+++ b/mod/silverbox/box.c
@@ -62,6 +62,8 @@ const struct field ASTERISK = {
/* hooks */
typedef int (*box_hook_t) (struct box_txn * txn);
+const int BOX_REF_THRESHOLD = 8196;
+
struct namespace namespace[256];
struct box_snap_row {
@@ -931,12 +933,18 @@ prepare_update_fields(struct box_txn *txn, struct tbuf
*data, bool old_format)
static void
tuple_add_iov(struct box_txn *txn, struct box_tuple *tuple)
{
- tuple_txn_ref(txn, tuple);
+ size_t len;
- add_iov(&tuple->bsize,
- tuple->bsize +
+ len = tuple->bsize +
field_sizeof(struct box_tuple, bsize) +
- field_sizeof(struct box_tuple, cardinality));
+ field_sizeof(struct box_tuple, cardinality);
+
+ if (len > BOX_REF_THRESHOLD) {
+ tuple_txn_ref(txn, tuple);
+ add_iov(&tuple->bsize, len);
+ } else {
+ add_iov_dup(&tuple->bsize, len);
+ }
}
static int __noinline__
--
1.7.3.2
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