diff --git a/src/models/rmbg2_0/generate.rs b/src/models/rmbg2_0/generate.rs
index d355d7c..6306db4 100644
--- a/src/models/rmbg2_0/generate.rs
+++ b/src/models/rmbg2_0/generate.rs
@@ -45,30 +45,36 @@ impl RMBG2_0 {
         })
     }
 
+    #[cfg(test)]
     pub fn h(&self) -> u32 {
         self.h
     }
 
+    #[cfg(test)]
     pub fn w(&self) -> u32 {
         self.w
     }
 
+    #[cfg(test)]
     pub fn img_mean(&self) -> &Tensor {
         &self.img_mean
     }
 
+    #[cfg(test)]
     pub fn img_std(&self) -> &Tensor {
         &self.img_std
     }
 
+    #[cfg(test)]
     pub fn device(&self) -> &Device {
         &self.device
     }
-
+    #[cfg(test)]
     pub fn dtype(&self) -> DType {
         self.dtype
     }
 
+    #[cfg(test)]
     pub fn model(&self) -> &BiRefNet {
         &self.model
     }
@@ -118,8 +124,8 @@ impl RMBG2_0 {
             .map(|(i, (img, height, width))| {
                 let rmbg_tensor = batch_output.i(i)?;
                 let alpha_img = float_tensor_to_dynamic_image(&rmbg_tensor)?;
-                let alpha_img = alpha_img
-                    .resize_exact(width, height, image::imageops::FilterType::CatmullRom);
+                let alpha_img =
+                    alpha_img.resize_exact(width, height, image::imageops::FilterType::CatmullRom);
                 let alpha_gray = alpha_img.to_luma8();
 
                 let rgb_img = img.to_rgb8();
diff --git a/src/utils/img_utils.rs b/src/utils/img_utils.rs
index 0aee160..9a3e2a6 100644
--- a/src/utils/img_utils.rs
+++ b/src/utils/img_utils.rs
@@ -79,16 +79,15 @@ pub fn get_image(file: &str) -> Result<DynamicImage> {
     Err(anyhow!("get image from message failed".to_string()))
 }
 
-pub fn extract_image_url(mes: &ChatCompletionParameters) -> Vec<String> {
+pub fn extract_image_url(mes: &ChatCompletionParameters) -> Vec<&String> {
     let mut img_vec = Vec::new();
-    // 使用引用避免 clone
     for chat_mes in &mes.messages {
         if let ChatMessage::User { content, .. } = chat_mes
             && let ChatMessageContent::ContentPart(part_vec) = content
         {
             for part in part_vec {
                 if let ChatMessageContentPart::Image(img_part) = part {
-                    img_vec.push(img_part.image_url.url.clone());
+                    img_vec.push(&img_part.image_url.url);
                 }
             }
         }
diff --git a/tests/test_rmbg2_0_perf.rs b/tests/test_rmbg2_0_perf.rs
index 8793f3c..57a9019 100644
--- a/tests/test_rmbg2_0_perf.rs
+++ b/tests/test_rmbg2_0_perf.rs
@@ -21,7 +21,7 @@ fn test_pixel_combine_performance() -> Result<()> {
         image::Luma([((x + y) % 256) as u8])
     });
 
-    let iterations = 50;
+    let iterations = 10;
 
     println!("=== 像素组合性能测试 ===");
     println!("图片尺寸: {}x{}", width, height);
@@ -195,7 +195,7 @@ fn test_postprocess_parallel_vs_serial() -> Result<()> {
         })
         .collect();
 
-    let iterations = 20;
+    let iterations = 10;
 
     println!("=== 后处理阶段性能测试（纯图像操作）===");
     println!("图片数量: {}", num_images);