diff --git a/configs/sample-sd-turbo.yaml b/configs/sample-sd-turbo.yaml
index cb9e00f..69c1722 100644
--- a/configs/sample-sd-turbo.yaml
+++ b/configs/sample-sd-turbo.yaml
@@ -7,7 +7,6 @@ basesr:
   chopping:     # for latent diffusion
     pch_size: 128
     weight_type: Gaussian
-    extra_bs: 16      # 16 ----> 26G memory
 
 # VAE settings
 tiled_vae: True
@@ -22,6 +21,9 @@ cfg_scale: 1.0
 # sampling settings 
 start_timesteps: 200
 
+# color fixing
+color_fix: ~
+
 # Stable Diffusion 
 base_model: sd-turbo
 sd_pipe:
diff --git a/inference_invsr.py b/inference_invsr.py
index f43283c..3e2e7b1 100644
--- a/inference_invsr.py
+++ b/inference_invsr.py
@@ -20,6 +20,7 @@ def get_parser(**parser_kwargs):
     parser.add_argument("-i", "--in_path", type=str, default="", help="Input path")
     parser.add_argument("-o", "--out_path", type=str, default="", help="Output path")
     parser.add_argument("--bs", type=int, default=1, help="Batchsize for loading image")
+    parser.add_argument("--chopping_bs", type=int, default=8, help="Batchsize for chopped patch")
     parser.add_argument("-t", "--timesteps", type=int, nargs="+", help="The inversed timesteps")
     parser.add_argument("-n", "--num_steps", type=int, default=1, help="Number of inference steps")
     parser.add_argument(
@@ -94,6 +95,10 @@ def get_configs(args):
     configs.tiled_vae = args.tiled_vae
     configs.color_fix = args.color_fix
     configs.basesr.chopping.pch_size = args.chopping_size
+    if args.bs > 1:
+        configs.basesr.chopping.extra_bs = 1
+    else:
+        configs.basesr.chopping.extra_bs = args.chopping_bs
 
     return configs
 
diff --git a/sampler_invsr.py b/sampler_invsr.py
index 1417fae..3483779 100644
--- a/sampler_invsr.py
+++ b/sampler_invsr.py
@@ -173,7 +173,7 @@ class InvSamplerSR(BaseSampler):
                 stride= int(idle_pch_size * 0.50),
                 sf=self.configs.basesr.sf,
                 weight_type=self.configs.basesr.chopping.weight_type,
-                extra_bs=1 if self.configs.bs > 1 else self.configs.basesr.chopping.extra_bs,
+                extra_bs=self.configs.basesr.chopping.extra_bs,
             )
             for im_lq_pch, index_infos in im_spliter:
                 target_size = (