add time tracing logs

Signed-off-by: xixi <[email protected]>

src/fs/tikv_fs.rs

@@ -102,8 +102,12 @@ impl TiFs {
     {
         match f(self, txn).await {
             Ok(v) => {
+                let commit_start = SystemTime::now();
                 txn.commit().await?;
-                trace!("transaction committed");
+                debug!(
+                    "transaction committed in {} ms",
+                    commit_start.elapsed().unwrap().as_millis()
+                );
                 Ok(v)
             }
             Err(e) => {

src/fs/transaction.rs

@@ -383,6 +383,7 @@ impl Txn {
     }
 
     pub async fn write_data(&mut self, ino: u64, start: u64, data: Bytes) -> Result<usize> {
+        let write_start = SystemTime::now();
         debug!("write data at ({})[{}]", ino, start);
         let meta = self.read_meta().await?.unwrap();
         self.check_space_left(&meta)?;
@@ -440,6 +441,11 @@ impl Txn {
         inode.set_size(inode.size.max(target), self.block_size);
         self.save_inode(&inode).await?;
         trace!("write data: {}", String::from_utf8_lossy(&data));
+        debug!(
+            "write {} bytes in {}ms",
+            data.len(),
+            write_start.elapsed().unwrap().as_millis()
+        );
         Ok(size)
     }