[ovs-dev,04/13] ct-dpif: Reorder elements in ct_dpif_entry structure.

Message ID 1504893565-110166-5-git-send-email-bhanuprakash.bodireddy@intel.com
State New
Headers show
Series
  • Rearrange structure members for memory efficiency.
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Commit Message

Bodireddy, Bhanuprakash Sept. 8, 2017, 5:59 p.m.
By reordering elements in ct_dpif_entry structure, sum holes and pad
bytes can be reduced.

Before: structure size: 232, sum holes: 5, pad bytes: 4, cachelines:4
After : structure size: 224, sum holes: 1, pad bytes: 0, cachelines:4

Signed-off-by: Bhanuprakash Bodireddy <bhanuprakash.bodireddy@intel.com>
---
 lib/ct-dpif.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch

diff --git a/lib/ct-dpif.h b/lib/ct-dpif.h
index d5f9661..ba4cb39 100644
--- a/lib/ct-dpif.h
+++ b/lib/ct-dpif.h
@@ -156,6 +156,8 @@  struct ct_dpif_entry {
     uint16_t zone;
 
     /* Modifiable members. */
+    bool have_labels;
+    ovs_u128 labels;
 
     struct ct_dpif_counters counters_orig;
     struct ct_dpif_counters counters_reply;
@@ -163,9 +165,8 @@  struct ct_dpif_entry {
     struct ct_dpif_timestamp timestamp;
     struct ct_dpif_protoinfo protoinfo;
 
-    ovs_u128 labels;
-    bool have_labels;
     uint32_t status;
+
     /* Timeout for this entry in seconds */
     uint32_t timeout;
     uint32_t mark;