diff --git a/bench.html b/bench.html
index 505c356..64ea5b5 100644
--- a/bench.html
+++ b/bench.html
@@ -151,11 +151,17 @@
         var lines = data.split(/\n/);
 
         // keep window size to 30 records
-        lines.splice(-30);
-        lines = lines.splice(lines.length - 30);
+        lines = lines.splice(-30);
+        // lines = lines.splice(lines.length - 30);
 
         $(lines).each(function(i,line) {
+            if (line == "") {
+                return;
+            }
             var columns = line.split(/,/);
+            if (columns.length == 0) {
+                return;
+            }
             var a;
             a = parseInt(columns[1]);
             options.series[0].data.push(a || 0);
diff --git a/bench_str.csv b/bench_str.csv
index 6ae5309..2db3b40 100644
--- a/bench_str.csv
+++ b/bench_str.csv
@@ -629,4 +629,11 @@
 1447158285,11638128.71,5241775.30,71089.90,2321077.83
 1447158396,13539837.29,5874704.47,47662.55,2533571.93
 1447158415,14054879.53,5952300.47,41527.76,2571669.83
-1447158461,14000558.11,5739623.36,53092.46,2529610.40
+1447210457,13616841.50,5604087.24,83886.08,2458628.97
+1447210807,14529897.99,5833087.33,77672.30,1845729.06
+1447210834,14016924.69,5806227.80,66576.25,1715107.19
+1447211104,14738120.40,5873312.56,58254.22,2092537.05
+1447211128,14875503.82,5649431.95,27776.85,2033045.40
+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
diff --git a/include/r3.h b/include/r3.h
index 01f8aac..a707c84 100644
--- a/include/r3.h
+++ b/include/r3.h
@@ -54,10 +54,10 @@ struct _node {
 struct _edge {
     char * pattern; // 8 bytes
     node * child; // 8 bytes
-    unsigned int   pattern_len; // 1 byte
-    unsigned int   opcode;
-    // unsigned char   opcode:4; // 4 bit
-    unsigned char  has_slug:1; // 1 bit
+    unsigned int pattern_len; // 4byte
+    unsigned int opcode; // 4byte
+    unsigned int has_slug; // 4byte
+    char _padding[ 64 - (sizeof(char*) + sizeof(node*) + sizeof(unsigned int) * 3) ];
 };
 
 struct _route {
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index b29c5d8..804f5d6 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,5 +1,4 @@
 # set(TEST_LIBS ${TEST_LIBS} ${CHECK_LIBRARIES} judy libr3)
-# set(TEST_LIBS ${TEST_LIBS} ${CHECK_LIBRARIES} judy libr3)
 include_directories("${PROJECT_SOURCE_DIR}/include ${PROJECT_SOURCE_DIR}/src ${PROJECT_SOURCE_DIR}")
 find_package(Check REQUIRED)
 find_package(PCRE REQUIRED)