Prevented resizing just created hashes in specific size ranges
MODIFY
src/hash.c
src/hash.c
@@ -145,7 +145,8 @@ mrb_hash_new_capa(mrb_state *mrb, mrb_int capa)
struct RHash *h;
h = (struct RHash*)mrb_obj_alloc(mrb, MRB_TT_HASH, mrb->hash_class);
- h->ht = kh_init_size(ht, mrb, capa);
+ /* khash needs 1/4 empty space so it is not resized immediately */
+ h->ht = kh_init_size(ht, mrb, capa*4/3);
h->iv = 0;
return mrb_obj_value(h);
}

Prevented resizing just created hashes in specific size ranges