diff --git a/analysis/engine/optimizer.py b/analysis/engine/optimizer.py
index 02f71e444e2ddc9cc158ccbca45967519b8f86be..46dedb8ec9d17c4488e04cb2aaddc893d5e86ffa 100644
--- a/analysis/engine/optimizer.py
+++ b/analysis/engine/optimizer.py
@@ -64,7 +64,9 @@ class Optimizer(Resource):
         engine = optimizer.Optimizer(task_id, args["knobs"], child_conn, engine=args.get("engine"),
                                      max_eval=args.get("max_eval"),
                                      n_random_starts=args.get("random_starts"),
-                                     x0=x_ref, y0=y_ref, split_count=args.get("split_count"))
+                                     x0=x_ref, y0=y_ref, split_count=args.get("split_count"),
+                                     noise=args.get("noise"), 
+                                     sel_feature=args.get("feature_filter") or args.get("sel_feature"))
         engine.start()
 
         value = {}
diff --git a/analysis/engine/parser.py b/analysis/engine/parser.py
index aad41f1657197c8bfb98adbd4f3c8fc8cbcf6ab8..6a21748bde78b1e71bd5850bc1812419090698f3 100644
--- a/analysis/engine/parser.py
+++ b/analysis/engine/parser.py
@@ -36,6 +36,10 @@ OPTIMIZER_POST_PARSER.add_argument('feature_filter', type=bool, location='json',
                                    help="the feature_filter enabled")
 OPTIMIZER_POST_PARSER.add_argument('split_count', type=int, location='json',
                                    help="split_count cannot be null")
+OPTIMIZER_POST_PARSER.add_argument('sel_feature', type=bool, location='json',
+                                   help="enable the feature selection or not")
+OPTIMIZER_POST_PARSER.add_argument('noise', type=float, location='json',
+                                   help="the noise can not be null")
 
 OPTIMIZER_PUT_PARSER = reqparse.RequestParser()
 OPTIMIZER_PUT_PARSER.add_argument('iterations', type=int, required=True,
diff --git a/common/config/config.go b/common/config/config.go
index dcc3a406c4641e5b280c64fed31d7f2698abb150..a65c6a70627519841e228a005945afa3aa1d164f 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -114,6 +114,12 @@ var (
 	TLSHTTPCACertFile string
 )
 
+// the tuning configs
+var (
+	Noise      float64
+	SelFeature bool
+)
+
 // the system config in atuned.cnf
 var (
 	Network string
@@ -188,6 +194,10 @@ func (c *Cfg) Load() error {
 		Network = net
 	}
 
+	section = cfg.Section("tuning")
+	Noise = section.Key("noise").MustFloat64(0.000000001)
+	SelFeature = section.Key("sel_feature").MustBool(false)
+
 	if err := initLogging(cfg); err != nil {
 		return err
 	}
diff --git a/common/models/optimizer.go b/common/models/optimizer.go
index 418fd007ebb9cc774374e388e4cb5ef474e66e4b..abc227075cbfcb7f040641c4f05da26bb9e08ec9 100644
--- a/common/models/optimizer.go
+++ b/common/models/optimizer.go
@@ -31,6 +31,8 @@ type OptimizerPostBody struct {
 	Yref          []string   `json:"y_ref,omitempty"`
 	FeatureFilter bool       `json:"feature_filter"`
 	SplitCount    int32      `json:"split_count"`
+	Noise         float64    `json:"noise"`
+	SelFeature    bool       `json:"sel_feature"`
 }
 
 // Knob body store the tuning properties
diff --git a/common/tuning/optimizer.go b/common/tuning/optimizer.go
index adc891683ef6123cc62d8ab5703507ec18c14ba6..782d52bfaa1a4efd0459232121c57bb24492d6ed 100644
--- a/common/tuning/optimizer.go
+++ b/common/tuning/optimizer.go
@@ -131,7 +131,9 @@ func (o *Optimizer) createOptimizerTask(ch chan *PB.TuningMessage, iters int32,
 	optimizerBody.Engine = engine
 	optimizerBody.RandomStarts = o.RandomStarts
 	optimizerBody.FeatureFilter = o.FeatureFilter
+	optimizerBody.SelFeature = config.SelFeature
 	optimizerBody.SplitCount = o.SplitCount
+	optimizerBody.Noise = config.Noise
 	optimizerBody.Knobs = make([]models.Knob, 0)
 	for _, item := range o.Prj.Object {
 		if item.Info.Skip {
@@ -361,6 +363,9 @@ func (o *Optimizer) matchRelations(optStr string) bool {
 
 func (o *Optimizer) filterParams() (string, error) {
 	log.Infof("params importance weight is: %s", o.RespPutIns.Rank)
+	if strings.TrimSpace(o.RespPutIns.Rank) == "" {
+		return "", nil
+	}
 	sortedParams := make(utils.SortedPair, 0)
 	paramList := strings.Split(o.RespPutIns.Rank, ",")
 
diff --git a/misc/atuned.cnf b/misc/atuned.cnf
index 7875f0960dec106ce518ce4f1f6f5af539532e55..51f0eb08fe118c5e4ea4b15a549aa7dea3accf7c 100755
--- a/misc/atuned.cnf
+++ b/misc/atuned.cnf
@@ -79,3 +79,9 @@ disk = sda
 network = enp189s0f0
 
 user = root
+
+#################################### tuning ###############################
+# tuning configs
+[tuning]
+noise = 0.000000001
+sel_feature = false