return new DistinctKeyIterator();
      }

      @Override
      public boolean contains(@Nullable Object key) { // for performance
        return containsKey(key);
      }

      @Override
      public boolean remove(@Nullable Object o) { // for performance
        return !LinkedListMultimap.this.removeAll(o).isEmpty();
      }
    }
    return new KeySetImpl();
  }

  @Override

	if oldLinux() {
		warnings = append(warnings, color.YellowBold("Detected Linux kernel version older than 4.0 release, there are some known potential performance problems with this kernel version. MinIO recommends a minimum of 4.x linux kernel version for best performance"))
	}

	maxProcs := runtime.GOMAXPROCS(0)
	cpuProcs := runtime.NumCPU()
	if maxProcs < cpuProcs {

* Improve scheduler performance of MatchInterPodAffinity predicate. ([#57476](https://github.com/kubernetes/kubernetes/pull/57476), [@misterikkit](https://github.com/misterikkit))
* Improve scheduler performance of MatchInterPodAffinity predicate. ([#57477](https://github.com/kubernetes/kubernetes/pull/57477), [@misterikkit](https://github.com/misterikkit))

        for (int i = 0; i < 1000; i++) {
            urlFilter.addInclude("https://site" + i + ".com/.*");
            urlFilter.addExclude(".*\\.exclude" + i + "$");
        }

        // Test matching performance
        assertTrue(urlFilter.match("https://site500.com/page"));
        assertFalse(urlFilter.match("https://site500.com/file.exclude500"));
        assertFalse(urlFilter.match("https://unknown.com/page"));
    }

   * implementation of iterator() to define its contents, and methods like contains() are
   * implemented in terms of that method (though they will likely be overridden by subclasses for
   * performance reasons).) This means that a call to this method have can different behavior in GWT
   * and non-GWT environments UNLESS subclasses are careful to always override all methods

   * reduced the available size of the buffer each time a call to read didn't fill up the available
   * space in the buffer completely. In general this is a performance problem since the buffer size
   * is permanently reduced, but with certain Reader implementations it could also cause the buffer
   * size to reach 0, causing an infinite loop.
   */

   * reduced the available size of the buffer each time a call to read didn't fill up the available
   * space in the buffer completely. In general this is a performance problem since the buffer size
   * is permanently reduced, but with certain Reader implementations it could also cause the buffer
   * size to reach 0, causing an infinite loop.
   */

        assertEquals("In progress", statusMap.get(CrawlerStatus.RUNNING));
        assertEquals("Completed", statusMap.get(CrawlerStatus.DONE));

        // Test with EnumMap for better performance
        java.util.EnumMap<CrawlerStatus, String> enumMap = new java.util.EnumMap<>(CrawlerStatus.class);
        enumMap.put(CrawlerStatus.INITIALIZING, "Init");
        enumMap.put(CrawlerStatus.RUNNING, "Run");

 * @since 2.0
 */
@GwtCompatible
public abstract class ImmutableMultimap<K, V> extends BaseImmutableMultimap<K, V>
    implements Serializable {

  /**
   * Returns an empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  public static <K, V> ImmutableMultimap<K, V> of() {
    return ImmutableListMultimap.of();
  }

  /** Returns an immutable multimap containing a single entry. */

通過 **FastAPI** 你可以獲得所有 **Starlette** 的特性（FastAPI 就像加強版的 Starlette）：

* 性能極其出色。它是 <a href="https://github.com/encode/starlette#performance" class="external-link" target="_blank">Python 可用的最快框架之一，和 **NodeJS** 及 **Go** 相當</a>。
* **支援 WebSocket**。
* 能在行程內處理背景任務。
* 支援啟動和關閉事件。
* 有基於 HTTPX 的測試用戶端。
* 支援 **CORS**、GZip、靜態檔案、串流回應。
* 支援 **Session 和 Cookie** 。