model test add tps

tests/test_gelab_zero.rs

@@ -64,6 +64,12 @@ fn gelab_zero_generate() -> Result<()> {
     let res = qwen3vl.generate(mes)?;
     let i_duration = i_start.elapsed();
     println!("generate: \n {:?}", res);
+    if res.usage.is_some() {
+        let num_token = res.usage.as_ref().unwrap().total_tokens;
+        let duration_secs = i_duration.as_secs_f64();
+        let tps = num_token as f64 / duration_secs;
+        println!("Tokens per second (TPS): {:.2}", tps);
+    }
     println!("Time elapsed in generate is: {:?}", i_duration);
     Ok(())
 }