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dpif-netdev: Reorder elements in dp_netdev_port structure.

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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:2, sum padbytes:7, cachelines:2

Signed-off-by: Bhanuprakash Bodireddy <bhanuprakash.bodireddy@intel.com>
Co-authored-by: Antonio Fischetti <antonio.fischetti@intel.com>
Signed-off-by: Antonio Fischetti <antonio.fischetti@intel.com>
Acked-by: Daniele Di Proietto <diproiettod@vmware.com>
This commit is contained in:
Bhanuprakash Bodireddy
2016-10-14 15:37:11 +01:00
committed by Daniele Di Proietto
parent 38ee081497
commit 2e4450aa35
1 changed files with 1 additions and 1 deletions
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lib/dpif-netdev.c
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@@ -290,8 +290,8 @@ struct dp_netdev_port {
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;
unsigned n_rxq; /* Number of elements in 'rxq' */
bool dynamic_txqs; /* If true XPS will be used. */
unsigned *txq_used; /* Number of threads that uses each tx queue. */
struct ovs_mutex txq_used_mutex;