Comme toujours, avec FastAPI vous pouvez combiner `def` et `async def` selon vos besoins.

    Si vous avez besoin d'un rappel sur quand utiliser l'un ou l'autre, consultez la section _« In a hurry? »_ dans la documentation à propos de [`async` et `await`](../async.md#in-a-hurry).

# Benchmarks { #benchmarks }

Benchmarks independentes da TechEmpower mostram as aplicações **FastAPI** rodando com Uvicorn como [um dos frameworks Python mais rápidos disponíveis](https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7), somente atrás dos próprios Starlette e Uvicorn (utilizados internamente pelo FastAPI).

Mas quando se checa _benchmarks_ e comparações você deveria ter o seguinte em mente.

# Бенчмарки (тесты производительности) { #benchmarks }

Независимые бенчмарки TechEmpower показывают, что приложения **FastAPI** под управлением Uvicorn — [одни из самых быстрых Python‑фреймворков](https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7), уступающие только Starlette и самому Uvicorn (используются внутри FastAPI).

Но при просмотре бенчмарков и сравнений следует иметь в виду следующее.

   * cookies can be 4KiB, and should be possible to send.
   *
   *  http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-12#section-5.2
   */
  @Test
  fun largeHeaderValue() {
    val value = CharArray(4096)
    Arrays.fill(value, '!')
    val headerBlock = headerEntries("cookie", String(value))
    hpackWriter!!.writeHeaders(headerBlock)

Você pode usar um código de fechamento dos [códigos válidos definidos na especificação](https://tools.ietf.org/html/rfc6455#section-7.4.1).

///

### Tente os WebSockets com dependências { #try-the-websockets-with-dependencies }

Execute sua aplicação:

<div class="termy">

```console
$ fastapi dev

# 벤치마크 { #benchmarks }

독립적인 TechEmpower 벤치마크에 따르면 **FastAPI** 애플리케이션이 Uvicorn을 사용하여 [사용 가능한 가장 빠른 Python 프레임워크 중 하나](https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7)로 실행되며, Starlette와 Uvicorn 자체(내부적으로 FastAPI가 사용하는 도구)보다 조금 아래에 위치합니다.

그러나 벤치마크와 비교를 확인할 때 다음 사항을 염두에 두어야 합니다.

## 벤치마크와 속도 { #benchmarks-and-speed }

벤치마크를 확인할 때, 일반적으로 여러 가지 유형의 도구가 동등한 것으로 비교되는 것을 볼 수 있습니다.

# Benchmarks { #benchmarks }

Los benchmarks independientes de TechEmpower muestran aplicaciones de **FastAPI** ejecutándose bajo Uvicorn como [uno de los frameworks de Python más rápidos disponibles](https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7), solo por debajo de Starlette y Uvicorn en sí mismos (utilizados internamente por FastAPI).

  }

  /*
   * We co-opt some URI resolution tests for our purposes.
   * Some of the tests have queries and anchors that are a little silly here.
   */

  /** http://gbiv.com/protocols/uri/rfc/rfc2396.html#rfc.section.C.1 */
  public void testRfc2396Normal() {
    assertThat(simplifyPath("/a/b/c/g")).isEqualTo("/a/b/c/g");
    assertThat(simplifyPath("/a/b/c/./g")).isEqualTo("/a/b/c/g");

  }

  /*
   * We co-opt some URI resolution tests for our purposes.
   * Some of the tests have queries and anchors that are a little silly here.
   */

  /** http://gbiv.com/protocols/uri/rfc/rfc2396.html#rfc.section.C.1 */
  public void testRfc2396Normal() {
    assertThat(simplifyPath("/a/b/c/g")).isEqualTo("/a/b/c/g");
    assertThat(simplifyPath("/a/b/c/./g")).isEqualTo("/a/b/c/g");

Les principales tâches que vous pouvez faire dès maintenant sont :

* [Aider les autres avec des questions sur GitHub](#help-others-with-questions-in-github) (voir la section ci‑dessus).
* [Relire des Pull Requests](#review-pull-requests) (voir la section ci‑dessus).

Ces deux tâches sont celles qui **consomment le plus de temps**. C'est le travail principal de la maintenance de FastAPI.