By reordering the data elements in dp_netdev_port structure, pad bytes
can be reduced and there by saving a cache line.
Before: structure size:136, holes:3, sum padbytes:15, cachelines:3
After: structure size:128, holes:1, sum padbytes:7, cachelines:2
Signed-off-by: Bhanuprakash Bodireddy <bhanuprakash.bodire...@intel.com>
Signed-off-by: Antonio Fischetti <antonio.fische...@intel.com>
---
lib/dpif-netdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index dfc9cbd..262f4de 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -284,10 +284,10 @@ struct dp_netdev_rxq {
/* A port in a netdev-based datapath. */
struct dp_netdev_port {
odp_port_t port_no;
+ unsigned n_rxq; /* Number of elements in 'rxq' */
struct netdev *netdev;
struct hmap_node node; /* Node in dp_netdev's 'ports'. */
struct netdev_saved_flags *sf;
- unsigned n_rxq; /* Number of elements in 'rxq' */
struct dp_netdev_rxq *rxqs;
bool dynamic_txqs; /* If true XPS will be used. */
unsigned *txq_used; /* Number of threads that uses each tx queue.
*/
--
2.4.11
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