## Tests de performance et rapidité

Lorsque vous vérifiez les tests de performance, il est commun de voir plusieurs outils de différents types comparés comme équivalents.

En particulier, on voit Uvicorn, Starlette et FastAPI comparés (parmi de nombreux autres outils).

        if (i2 == -1) {
            // first one is known, so it comes first
            return -1;
        }
        int rv = Integer.compare(i1, i2);
        if (rv != 0) {
            return rv;
        }
        // same execution point, now compare priorities
        return Integer.compare(p1.priority(), p2.priority());
    }

## Benchmarks and speed { #benchmarks-and-speed }

When you check the benchmarks, it is common to see several tools of different types compared as equivalent.

Specifically, to see Uvicorn, Starlette and FastAPI compared together (among many other tools).

        .isEqualTo(0);
  }

  public void testManyEqual() {
    assertThat(
            ComparisonChain.start()
                .compare(1, 1)
                .compare(1L, 1L)
                .compareFalseFirst(true, true)
                .compare(1.0, 1.0)
                .compare(1.0f, 1.0f)
                .compare("a", "a", Ordering.usingToString())

  }

  /**
   * Compares this unsigned integer to another unsigned integer. Returns {@code 0} if they are
   * equal, a negative number if {@code this < other}, and a positive number if {@code this >
   * other}.
   */
  @Override
  public int compareTo(UnsignedInteger other) {
    checkNotNull(other);
    return compare(value, other.value);
  }

  @Override

      tmp += copy[0];
    }
    return tmp;
  }

  private static final Comparator<Integer> NATURAL_INTEGER =
      new Comparator<Integer>() {
        @Override
        public int compare(Integer o1, Integer o2) {
          return o1.compareTo(o2);
        }
      };

  @Benchmark
  int arraysSortOrderingFromNatural(int reps) {
    int tmp = 0;
    for (int i = 0; i < reps; i++) {

#### Fix it with `secrets.compare_digest()` { #fix-it-with-secrets-compare-digest }

But in our code we are actually using `secrets.compare_digest()`.

In short, it will take the same time to compare `stanleyjobsox` to `stanleyjobson` than it takes to compare `johndoe` to `stanleyjobson`. And the same for the password.

    }

    @Override
    public int hashCode() {
      return slowItDown() + hash;
    }

    @Override
    public int compareTo(Element e) {
      int x = slowItDown();
      return x + super.compareTo(e) - x; // silly attempt to prevent opt
    }

    static int slowItDown() {
      int result = 0;
      for (int i = 1; i <= 1000; i++) {
        result += i;
      }

      implements Comparable<NonComparableSuperClass> {

    ComparableSubClass(Integer value) {
      super(value);
    }

    @Override
    public int compareTo(NonComparableSuperClass other) {
      return value.compareTo(other.value);
    }
  }

  }

  // needed because otherwise Object.toString() calls hashCode()
  @Override
  public String toString() {
    return "DontHashMe" + value;
  }

  @Override
  public int compareTo(UnhashableObject o) {
    return Integer.compare(this.value, o.value);
  }