osMetricFdatasync
	osMetricSync

	// .... add more

	osMetricLast
)

var globalOSMetrics osMetrics

func init() {
	// Inject metrics.
	ioutilx.OsOpenFile = OpenFile
	ioutilx.OpenFileDirectIO = OpenFileDirectIO
	ioutilx.OsOpen = Open
}

type osMetrics struct {
	// All fields must be accessed atomically and aligned.
	operations [osMetricLast]uint64
	latency    [osMetricLast]lockedLastMinuteLatency

	"os"
	"path"
	"runtime"
	"sync"
	"time"

	"github.com/cosnicolaou/pbzip2"
	"github.com/klauspost/compress/s2"
	"github.com/klauspost/compress/zstd"
	gzip "github.com/klauspost/pgzip"
	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/pierrec/lz4/v4"
)

// Max bzip2 concurrency across calls. 50% of GOMAXPROCS.
var bz2Limiter = pbzip2.CreateConcurrencyPool((runtime.GOMAXPROCS(0) + 1) / 2)

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

Plus le problème résolu par un outil est simple, mieux seront les performances obtenues. Et la plupart des tests de performance ne prennent pas en compte les fonctionnalités additionnelles fournies par les outils.

La hiérarchie est la suivante :

import (
	"bytes"
	"encoding/hex"
	"errors"
	"fmt"
	"hash"
	"io"

	"github.com/minio/highwayhash"
	"github.com/minio/minio/internal/hash/sha256"
	"golang.org/x/crypto/blake2b"

	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/minio/internal/logger"
)

// magic HH-256 key as HH-256 hash of the first 100 decimals of π as utf-8 string with a zero key.

	"fmt"
	"io"

	"cloud.google.com/go/storage"
	"github.com/minio/madmin-go/v3"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"

	xioutil "github.com/minio/minio/internal/ioutil"
)

type warmBackendGCS struct {
	client       *storage.Client
	Bucket       string
	Prefix       string
	StorageClass string
}

import (
	"context"
	"fmt"
	"net/url"
	"runtime"
	"sort"
	"time"

	"github.com/minio/dperf/pkg/dperf"
	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/auth"
	xioutil "github.com/minio/minio/internal/ioutil"
)

const speedTest = "speedtest"

type speedTestOpts struct {
	objectSize       int
	concurrencyStart int
	concurrency      int
	duration         time.Duration
	autotune         bool

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"os"
	"os/exec"
	"runtime"
	"syscall"

	xioutil "github.com/minio/minio/internal/ioutil"
)

// Type of service signals currently supported.
type serviceSignal int

const (
	serviceRestart       serviceSignal = iota // Restarts the server.

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"errors"
	"fmt"
	"io"
	"sync"
	"sync/atomic"

	xioutil "github.com/minio/minio/internal/ioutil"
)

// Reads in parallel from readers.
type parallelReader struct {
	readers       []io.ReaderAt
	orgReaders    []io.ReaderAt
	dataBlocks    int
	offset        int64
	shardSize     int64

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.transformer.impl;

import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.codelibs.fess.crawler.entity.AccessResultDataImpl;
import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.crawler.entity.ResultData;

import java.nio.charset.StandardCharsets;

import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.WordlistLoader;
import org.apache.lucene.util.IOUtils;
import org.codelibs.analysis.ja.NumberConcatenationFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;