diff --git a/bench_str.csv b/bench_str.csv
index 2db3b40..186622a 100644
--- a/bench_str.csv
+++ b/bench_str.csv
@@ -637,3 +637,8 @@
 1447211244,15335902.86,6019829.26,77672.30,1842297.15
 1447211259,14365504.46,5812325.12,91180.52,1965977.09
 1447211278,15175749.51,5931324.37,99864.38,1905029.23
+1447211529,15442994.79,5909448.56,91180.52,1953744.42
+1447211564,15175229.72,6100062.87,58254.22,1918667.68
+1447211712,15957717.02,6145969.23,77672.30,1960098.15
+1447211732,15692151.82,5725138.47,62601.55,1711560.29
+1447211755,15758474.73,6033801.22,82241.25,1995758.04
diff --git a/include/r3.h b/include/r3.h
index a707c84..0b1604a 100644
--- a/include/r3.h
+++ b/include/r3.h
@@ -34,18 +34,22 @@ struct _node {
     pcre_extra * pcre_extra;
 
     // edges are mostly less than 255
-    unsigned int edge_len;
     unsigned int compare_type; // compare_type: pcre, opcode, string
-    unsigned char    endpoint; // endpoint, should be zero for non-endpoint nodes
-    unsigned char    ov_cnt; // capture vector array size for pcre
+    unsigned int edge_len;
+    unsigned int endpoint; // endpoint, should be zero for non-endpoint nodes
+    unsigned int ov_cnt; // capture vector array size for pcre
+
+
+    route ** routes;
+    // the pointer of route data
+    void * data;
 
     // almost less than 255
     unsigned char      edge_cap;
     unsigned char      route_len;
     unsigned char      route_cap;
-    route ** routes;
-    // the pointer of route data
-    void * data;
+
+    char _padding[ 64 - sizeof(unsigned char) * 3];
 };
 
 #define r3_node_edge_pattern(node,i) node->edges[i]->pattern