diff --git a/src/main.rs b/src/main.rs
index 3bed63a..8150a7d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -33,15 +33,17 @@ async fn main() {
     let update = config.update.map(Duration::from_secs);
     let sleep = config.sleep.map(Duration::from_secs);
     let mut database = Database::new(&config.database).unwrap();
-
     let rp = RustyPipe::new();
 
     loop {
+        info!("begin {} channels update...", config.channel.len());
         for (c, channel) in &config.channel {
-            debug!("handle channel `{c}` ({})...", channel.id);
+            debug!("get `{c}` ({})...", channel.id);
             match rp.query().channel_videos(&channel.id).await {
                 Ok(result) => {
-                    for item in result.content.items {
+                    let items = result.content.items;
+                    debug!("received {:?} items to handle...", items.len());
+                    for item in items {
                         if database.is_processed(&item.id).is_ok_and(|r| r) {
                             debug!(
                                 "item `{}` for channel `{c}` already processed; skip handle.",
@@ -79,7 +81,7 @@ async fn main() {
                                             String::from_utf8_lossy(&response.stdout).contains(s)
                                         }) {
                                             match database.process(&item.id) {
-                                                Ok(()) => debug!(
+                                                Ok(()) => info!(
                                                     "exec `{cmd}` for channel `{c}` successful: `{:?}`",
                                                     response
                                                 ),
@@ -117,14 +119,14 @@ async fn main() {
         }
         match update {
             Some(duration) => {
-                debug!(
+                info!(
                     "queue completed; await {} seconds to continue...",
                     duration.as_secs()
                 );
                 thread::sleep(duration)
             }
             None => {
-                debug!("all tasks completed; exit.");
+                info!("all tasks completed; exit.");
                 break;
             }
         }