diff --git a/Cargo.lock b/Cargo.lock
index e8aa648..50f5692 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -220,9 +220,9 @@ checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
 [[package]]
 name = "itoa"
-version = "1.0.15"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+checksum = "7ee5b5339afb4c41626dde77b7a611bd4f2c202b897852b4bcf5d03eddc61010"
 
 [[package]]
 name = "js-sys"
@@ -236,7 +236,7 @@ dependencies = [
 
 [[package]]
 name = "l-s"
-version = "0.3.3"
+version = "0.3.4"
 dependencies = [
  "anyhow",
  "clap",
@@ -295,9 +295,9 @@ checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
 [[package]]
 name = "portable-atomic"
-version = "1.11.1"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f84267b20a16ea918e43c6a88433c2d54fa145c92a811b5b047ccbe153674483"
+checksum = "f59e70c4aef1e55797c2e8fd94a4f2a973fc972cfde0e0b05f683667b0cd39dd"
 
 [[package]]
 name = "proc-macro2"
@@ -325,9 +325,9 @@ checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
 name = "ryu"
-version = "1.0.20"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
+checksum = "62049b2877bf12821e8f9ad256ee38fdc31db7387ec2d3b3f403024de2034aea"
 
 [[package]]
 name = "serde"
diff --git a/Cargo.toml b/Cargo.toml
index 1d064b4..ddf4529 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "l-s"
-version = "0.3.3"
+version = "0.3.4"
 authors = ["licsber <admin@licsber.site>"]
 edition = "2021"
 
diff --git a/src/meta/progress.rs b/src/meta/progress.rs
index 4699a71..1110c0b 100644
--- a/src/meta/progress.rs
+++ b/src/meta/progress.rs
@@ -13,6 +13,7 @@ pub struct ProgressTracker {
     iops: Arc<AtomicU64>,
     start_time: Instant,
     last_update: Arc<AtomicU64>,
+    last_bytes: Arc<AtomicU64>,
 }
 
 impl ProgressTracker {
@@ -38,6 +39,7 @@ impl ProgressTracker {
             iops: Arc::new(AtomicU64::new(0)),
             start_time: Instant::now(),
             last_update: Arc::new(AtomicU64::new(0)),
+            last_bytes: Arc::new(AtomicU64::new(0)),
         }
     }
 
@@ -81,10 +83,48 @@ impl ProgressTracker {
     }
 
     /// 获取字节读取回调（可 move）
+    /// 在读取过程中定期更新消息，提供更高粒度的进度反馈
     pub fn bytes_callback(&self) -> impl FnMut(u64) {
         let bytes_read = self.bytes_read.clone();
+        let last_bytes = self.last_bytes.clone();
+        let last_update = self.last_update.clone();
+        let start_time = self.start_time;
+        let progress_bar = self.progress_bar.clone();
+        let bytes_read_clone = self.bytes_read.clone();
+        let iops = self.iops.clone();
+
         move |bytes| {
             bytes_read.fetch_add(bytes, Ordering::Relaxed);
+
+            // 每读取 16MB（约4次缓冲区读取）或每 200ms 更新一次消息，提供更细粒度的反馈
+            let total_bytes = bytes_read.load(Ordering::Relaxed);
+            let last_bytes_value = last_bytes.load(Ordering::Relaxed);
+            let now = start_time.elapsed().as_millis() as u64;
+            let last_update_value = last_update.load(Ordering::Relaxed);
+
+            // 检查是否需要更新：每 16MB（缓冲区为4MB，约4次读取）或每 200ms
+            let bytes_diff = total_bytes.saturating_sub(last_bytes_value);
+            let time_diff = now.saturating_sub(last_update_value);
+            const UPDATE_BYTES_THRESHOLD: u64 = 16 * 1024 * 1024; // 16MB
+            const UPDATE_TIME_THRESHOLD: u64 = 200; // 200ms
+
+            if bytes_diff >= UPDATE_BYTES_THRESHOLD || time_diff >= UPDATE_TIME_THRESHOLD {
+                if let Some(pb) = &progress_bar {
+                    let elapsed = start_time.elapsed().as_secs_f64();
+                    let total_bytes = bytes_read_clone.load(Ordering::Relaxed);
+                    let total_ops = iops.load(Ordering::Relaxed);
+
+                    if total_bytes > 0 && elapsed > 0.0 {
+                        let speed_bytes_per_sec = total_bytes as f64 / elapsed;
+                        let speed_str = friendly_size(speed_bytes_per_sec as u64);
+                        let iops_value = total_ops as f64 / elapsed;
+                        pb.set_message(format!("IO速度: {}/s | IOPS: {:.0}", speed_str, iops_value));
+                    }
+                }
+
+                last_bytes.store(total_bytes, Ordering::Relaxed);
+                last_update.store(now, Ordering::Relaxed);
+            }
         }
     }