/// tip | Astuce

Comme Pydantic les sérialisera côté **Rust**, vous obtiendrez une **performance** bien supérieure que si vous ne déclarez pas de type de retour.

///

### Fonctions de chemin d'accès non asynchrones { #non-async-path-operation-functions }

 * addressed by the new {@link java.util.stream.Stream} library. Read the method documentation below
 * for comparisons. This class is not being deprecated, but we gently encourage you to migrate to
 * streams.
 *
 * <p><i>Performance notes:</i> Unless otherwise noted, all of the iterables produced in this class
 * are <i>lazy</i>, which means that their iterators only advance the backing iteration when
 * absolutely necessary.
 *

/// tip | Dica

Como o Pydantic fará a serialização no lado em **Rust**, você terá uma **performance** muito maior do que se não declarar um tipo de retorno.

///

### Funções de operação de rota não assíncronas { #non-async-path-operation-functions }

```

</div>

/// tip | Astuce

Pour la production, utilisez `fastapi run` plutôt que `fastapi dev`. 🚀

///

En interne, **FastAPI CLI** utilise [Uvicorn](https://www.uvicorn.dev), un serveur ASGI haute performance, prêt pour la production. 😎

La CLI `fastapi` tentera de détecter automatiquement l’application FastAPI à exécuter, en supposant qu’il s’agit d’un objet nommé `app` dans un fichier `main.py` (ou quelques autres variantes).

  
  As this code is still very new, it has not been heavily optimized yet;
  while it is expected to _eventually_ have better performance than the
  iptables backend, very little performance testing has been done so far. ([#121046](https://github.com/kubernetes/kubernetes/pull/121046), [@danwinship](https://github.com/danwinship))

		} else {
			results[len(results)-1] = r
		}
		results[len(results)-1].Endpoint = u.String()
	}()
	wg.Wait()

	return results
}

// DriveSpeedTest - Drive performance information
func (sys *NotificationSys) DriveSpeedTest(ctx context.Context, opts madmin.DriveSpeedTestOpts) chan madmin.DriveSpeedTestResult {
	ch := make(chan madmin.DriveSpeedTestResult)
	var wg sync.WaitGroup

       regular comments in the code. Remember as well that Elasticsearch
       has extensive [user documentation](./docs), and it is not the role
       of Javadoc to replace that.
        * If a method's performance is "unexpected" then it's good to call that
           out in the Javadoc. This is especially helpful if the method is usually fast but sometimes
           very slow (shakes fist at caching).

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | Astuce

Comme Pydantic le sérialisera du côté **Rust**, vous obtiendrez une **performance** bien supérieure que si vous ne déclarez pas de type de retour.

///

### Fonctions de chemin d'accès non async { #non-async-path-operation-functions }

      return result;
    } else {
      return new RegularImmutableSortedSet<>(ImmutableList.of(), comparator);
    }
  }

  /**
   * Returns the empty immutable sorted set.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked") // The natural-ordered empty set supports all types.
  public static <E> ImmutableSortedSet<E> of() {

    * This results in 2x (or more) performance increase for JSON responses.
    * New docs: [Custom Response - JSON Performance](https://fastapi.tiangolo.com/advanced/custom-response/#json-performance).

## 0.129.2 (2026-02-21)

### Internal