- Added the `SizeBasedListCostEstimate` feature gate (enabled by default), which changes how APF seats are assigned to `LIST` requests. With this feature, one seat is assigned per 100KB of data loaded into memory at once during a `LIST` operation. ([#132932](https://github.com/kubernetes/kubernetes/pull/132932), [@serathius](https://github.com/serathius))

          .that(notification.getValue())
          .isEqualTo(notification.getKey());
    }

    CacheStats stats = cache.stats();
    assertThat(stats.evictionCount()).isEqualTo(removalListener.size());
    assertThat(stats.loadSuccessCount()).isEqualTo(computeCount.get());
    assertThat(stats.loadExceptionCount()).isEqualTo(exceptionCount.get() + computeNullCount.get());

    key = new Object();
    cache.refresh(key);
    checkNothingLogged();
    stats = cache.stats();
    assertThat(stats.missCount()).isEqualTo(2);
    assertThat(stats.loadSuccessCount()).isEqualTo(3);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(0);

    assertThat(cache.get(key)).isSameInstanceAs(key);
    stats = cache.stats();

    CacheStats stats = counter.snapshot();
    assertThat(stats.requestCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(0);
    assertThat(stats.hitRate()).isEqualTo(1.0);
    assertThat(stats.missCount()).isEqualTo(0);
    assertThat(stats.missRate()).isEqualTo(0.0);
    assertThat(stats.loadSuccessCount()).isEqualTo(0);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);

 * <li>End-of-path ($) matching - matches the end of URL path</li>
 * <li>Crawl-delay directive</li>
 * <li>Sitemap directive</li>
 * <li>Comment support (#)</li>
 * <li>Priority-based matching (longest match wins, Allow beats Disallow at equal length)</li>
 * </ul>
 *
 * <p>References:</p>
 * <ul>
 * <li><a href="https://datatracker.ietf.org/doc/html/rfc9309">RFC 9309 - Robots Exclusion Protocol</a></li>

    key = new Object();
    cache.refresh(key);
    checkNothingLogged();
    stats = cache.stats();
    assertThat(stats.missCount()).isEqualTo(2);
    assertThat(stats.loadSuccessCount()).isEqualTo(3);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(0);

    assertThat(cache.get(key)).isSameInstanceAs(key);
    stats = cache.stats();

   * {@link Cache#stats} will return zero for all statistics. Note that recording stats requires
   * bookkeeping to be performed with each operation, and thus imposes a performance penalty on
   * cache operation.
   *
   * @return this {@code CacheBuilder} instance (for chaining)
   * @since 12.0 (previously, stats collection was automatic)
   */
  @CanIgnoreReturnValue

    stats = cache.stats();
    assertThat(stats.requestCount()).isEqualTo(3);
    assertThat(stats.hitCount()).isEqualTo(1);
    assertThat(stats.hitRate()).isEqualTo(1.0 / 3);
    assertThat(stats.missCount()).isEqualTo(2);
    assertThat(stats.missRate()).isEqualTo(2.0 / 3);
    assertThat(stats.loadCount()).isEqualTo(2);
    assertThat(stats.totalLoadTime()).isAtLeast(totalLoadTime);
    totalLoadTime = stats.totalLoadTime();

      PairedStats stats = createPairedStatsOf(values.asIterable(), OTHER_MANY_VALUES);
      LinearTransformation fit = stats.leastSquaresFit();
      if (values.hasAnyNonFinite()) {
        assertLinearTransformationNaN(fit);
      } else {
        assertDiagonalLinearTransformation(
            fit,
            stats.xStats().mean(),
            stats.yStats().mean(),

      PairedStats stats = createPairedStatsOf(values.asIterable(), OTHER_MANY_VALUES);
      LinearTransformation fit = stats.leastSquaresFit();
      if (values.hasAnyNonFinite()) {
        assertLinearTransformationNaN(fit);
      } else {
        assertDiagonalLinearTransformation(
            fit,
            stats.xStats().mean(),
            stats.yStats().mean(),