update metrics.md

Author: kaushikmitr

site-src/guides/metrics.md

@@ -26,7 +26,7 @@ curl -i ${IP}:${PORT}/v1/completions -H 'Content-Type: application/json' -d '{
 | inference_model_request_total                | Counter          | The counter of requests broken out for each model.                | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
 | inference_model_request_error_total          | Counter          | The counter of requests errors broken out for each model.         | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
 | inference_model_request_duration_seconds     | Distribution     | Distribution of response latency.                                 | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
-| ntpot_seconds     | Distribution     | Distribution of ntpot (response latency per output token)                                 | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
+| normalized_time_per_output_token_seconds     | Distribution     | Distribution of ntpot (response latency per output token)                                 | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
 | inference_model_request_sizes                | Distribution     | Distribution of request size in bytes.                            | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
 | inference_model_response_sizes               | Distribution     | Distribution of response size in bytes.                           | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |
 | inference_model_input_tokens                 | Distribution     | Distribution of input token count.                                | `model_name`=&lt;model-name&gt; <br> `target_model_name`=&lt;target-model-name&gt; | ALPHA       |