diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 92a5e4c..6c8fcb0 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -2384,9 +2384,11 @@ void *thread_rule_monitor(void *arg)
 	const char* inc_cfg_dir=(const char*)feather->inc_dir;
 	struct _Maat_scanner_t* old_scanner=NULL;
 	long expr_wait_q_cnt=0;
+	int scan_dir_cnt=0;
 	while(feather->still_working)
 	{
 		usleep(feather->scan_interval_ms*1000);
+		scan_dir_cnt++;
 		config_monitor_traverse(feather->maat_version,
 								inc_cfg_dir, 
 								maat_start_cb,
@@ -2424,7 +2426,7 @@ void *thread_rule_monitor(void *arg)
 			}
 		}
 		garbage_bury(feather->garbage_q,feather->logger);
-		if(feather->stat_on==1)
+		if(feather->stat_on==1&&scan_dir_cnt%2==0)//output every 2 seconds
 		{
 			maat_stat_output(feather);
 		}
diff --git a/src/entry/Maat_stat.cpp b/src/entry/Maat_stat.cpp
index 2b05e77..828c9ae 100644
--- a/src/entry/Maat_stat.cpp
+++ b/src/entry/Maat_stat.cpp
@@ -1,5 +1,5 @@
 #include "Maat_rule_internal.h"
-#include "field_stat.h"
+#include <MESA/field_stat.h>
 enum MAAT_FS_STATUS{
 	STATUS_VERSION=0,
 	STATUS_TABLE_NUM,
@@ -40,7 +40,7 @@ void maat_stat_init(struct _Maat_feather_t* feather)
 	feather->fs_column_id[COLUMN_TABLE_RULE_NUM]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_CURRENT,"rule");
 	feather->fs_column_id[COLUMN_TABLE_REGEX_NUM]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_CURRENT,"regex");
 	feather->fs_column_id[COLUMN_TABLE_STREAM_NUM]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_CURRENT,"stream");
-	feather->fs_column_id[COLUMN_TABLE_SCAN_CNT]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_SPEED,"scan_cps");
+	feather->fs_column_id[COLUMN_TABLE_SCAN_CNT]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_SPEED,"IN_Tps");
 	feather->fs_column_id[COLUMN_TABLE_SCAN_BYTES]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_SPEED,"IN_Bps");
 	if(feather->perf_on==1)
 	{
@@ -50,9 +50,17 @@ void maat_stat_init(struct _Maat_feather_t* feather)
 		FS_register_ratio(feather->stat_handle,
 						feather->fs_column_id[COLUMN_TABLE_SCAN_BYTES], 
 						feather->fs_column_id[COLUMN_TABLE_CPU_TIME], 
+						1000000,		//microsecond to second
 						FS_STYLE_COLUMN,
 						FS_CALC_SPEED,
 						"PROC_Bps");
+		FS_register_ratio(feather->stat_handle,
+						feather->fs_column_id[COLUMN_TABLE_SCAN_CNT], 
+						feather->fs_column_id[COLUMN_TABLE_CPU_TIME], 
+						1000000,		//microsecond to second
+						FS_STYLE_COLUMN,
+						FS_CALC_SPEED,
+						"PROC_Tps");
 	}
 	feather->fs_column_id[COLUMN_TABLE_HIT_CNT]=FS_register(feather->stat_handle, FS_STYLE_COLUMN, FS_CALC_SPEED,"hit_cnt");
 	value=feather->fs_column_id[COLUMN_TABLE_HIT_CNT];
@@ -60,6 +68,7 @@ void maat_stat_init(struct _Maat_feather_t* feather)
 	FS_register_ratio(feather->stat_handle,
 					feather->fs_column_id[COLUMN_TABLE_HIT_CNT], 
 					feather->fs_column_id[COLUMN_TABLE_SCAN_CNT], 
+					1,
 					FS_STYLE_COLUMN,
 					FS_CALC_SPEED,
 					"hit_rate");
diff --git a/src/inc_internal/field_stat.h b/src/inc_internal/field_stat.h
index 07e8a5f..6bdf657 100644
--- a/src/inc_internal/field_stat.h
+++ b/src/inc_internal/field_stat.h
@@ -49,7 +49,8 @@ void FS_stop(screen_stat_handle_t* handle);
 int FS_register(screen_stat_handle_t handle,enum field_dsp_style_t style,enum field_calc_algo calc_type,const char* name);
 
 //numerator_id and denominator_id must be column/field/status style.
-int FS_register_ratio(screen_stat_handle_t handle,int numerator_id,int denominator_id,enum field_dsp_style_t style,enum field_calc_algo calc_type,const char* name);
+//scaling: negative value: zoom in; positive value: zoom out;
+int FS_register_ratio(screen_stat_handle_t handle,int numerator_id,int denominator_id,int scaling,enum field_dsp_style_t style,enum field_calc_algo calc_type,const char* name);
 
 //id: when id's type is FIELD , column_id is ignore.
 int FS_operate(screen_stat_handle_t handle,int id,int column_id,enum field_op op,long long value);