max*)
        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
        # shellcheck disable=SC2039,SC3045
        MAX_FD=$( ulimit -H -n ) ||
            warn "Could not query maximum file descriptor limit"
    esac
    case $MAX_FD in  #(
      '' | soft) :;; #(
      *)
        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.

      frequency.set(0);
    }
    backingMap.clear();
    size = 0L;
  }

  @Override
  int distinctElements() {
    return backingMap.size();
  }

  // Optimizations - Query Operations

  @Override
  public int size() {
    return Ints.saturatedCast(size);
  }

  @Override
  public Iterator<E> iterator() {
    return new MapBasedMultisetIterator();
  }

  /*

    }
/**
 * This stream class is unbuffered. Therefore this method will always
 * return 0 for streams connected to regular files. However, a 
 * stream created from a Named Pipe this method will query the server using a
 * "peek named pipe" operation and return the number of available bytes
 * on the server.
 */
    public int available() throws IOException {
        SmbNamedPipe pipe;

 * Futures.addCallback}.) Still, direct {@code addListener} calls are occasionally useful:
 *
 * <pre>{@code
 * final String name = ...;
 * inFlight.add(name);
 * ListenableFuture<Result> future = service.query(name);
 * future.addListener(new Runnable() {
 *   public void run() {
 *     processedCount.incrementAndGet();
 *     inFlight.remove(name);
 *     lastProcessed.set(name);
 *     logger.info("Done with {0}", name);

      max*)
        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
        # shellcheck disable=SC2039,SC3045
        MAX_FD=$( ulimit -H -n ) ||
            warn "Could not query maximum file descriptor limit"
    esac
    case $MAX_FD in  #(
      '' | soft) :;; #(
      *)
        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.

 * Futures.addCallback}.) Still, direct {@code addListener} calls are occasionally useful:
 *
 * <pre>{@code
 * final String name = ...;
 * inFlight.add(name);
 * ListenableFuture<Result> future = service.query(name);
 * future.addListener(new Runnable() {
 *   public void run() {
 *     processedCount.incrementAndGet();
 *     inFlight.remove(name);
 *     lastProcessed.set(name);
 *     logger.info("Done with {0}", name);

# ベンチマーク

TechEmpowerの独立したベンチマークでは、Uvicornの下で動作する**FastAPI**アプリケーションは、<a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">利用可能な最速のPythonフレームワークの1つ</a>であり、下回っているのはStarletteとUvicorn自体 (FastAPIによって内部で使用される) のみだと示されています。

ただし、ベンチマークを確認し、比較する際には下記の内容に気を付けてください。

## ベンチマークと速度

ベンチマークを確認する時、異なるツールを同等なものと比較するのが一般的です。

    }

    internal fun redactUrl(url: HttpUrl): String {
      if (queryParamsNameToRedact.isEmpty() || url.querySize == 0) {
        return url.toString()
      }
      return url.newBuilder().query(null).apply {
        for (i in 0 until url.querySize) {
          val parameterName = url.queryParameterName(i)
          val newValue = if (parameterName in queryParamsNameToRedact) "██" else url.queryParameterValue(i)

  }

  /**
   * {@inheritDoc}
   *
   * <p>This implementation of {@code getAllPresent} lacks any insight into the internal cache data
   * structure, and is thus forced to return the query keys instead of the cached keys. This is only
   * possible with an unsafe cast which requires {@code keys} to actually be of type {@code K}.
   *
   * @since 11.0
   */
  /*

import org.opensearch.action.support.WriteRequest.RefreshPolicy;
import org.opensearch.action.update.UpdateRequestBuilder;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.SearchHits;
import org.opensearch.search.sort.SortBuilders;
import org.opensearch.search.sort.SortOrder;
import org.slf4j.Logger;