Наприклад, Ви можете додати власний заголовок `X-Process-Time`, який міститиме час у секундах, який витратився на обробку запиту та генерацію відповіді:

{* ../../docs_src/middleware/tutorial001.py hl[10,12:13] *}


/// tip | Підказка

	// Copy request.
	req := *r

	// Save authorization header.
	v4Auth := req.Header.Get(xhttp.Authorization)

	// Parse signature version '4' header.
	signV4Values, errCode := parseSignV4(v4Auth, globalSite.Region(), serviceS3)
	if errCode != ErrNone {
		return cred, "", "", time.Time{}, errCode
	}

	// Payload streaming.

	if l.LogLevel >= Error {
		l.log(ctx, slog.LevelError, msg, slog.Any("data", data))
	}
}

func (l *slogLogger) Trace(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error) {
	if l.LogLevel <= Silent {
		return
	}

	elapsed := time.Since(begin)
	sql, rows := fc()
	fields := []slog.Attr{
		slog.String("duration", fmt.Sprintf("%.3fms", float64(elapsed.Nanoseconds())/1e6)),

	StatusCode int
	// Log body of 4xx or 5xx responses
	LogErrBody bool
	// Log body of all responses
	LogAllBody bool

	ttfbHeader time.Duration
	ttfbBody   time.Duration

	StartTime time.Time
	// number of bytes written
	bytesWritten int
	// number of bytes of response headers written
	headerBytesWritten int
	// Internal recording buffer
	headers bytes.Buffer
	body    bytes.Buffer

		{"error not equal", errors.New("1"), errors.New("2"), false},
		{"driver.Valuer equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now, Valid: true}, true},
		{"driver.Valuer not equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now.Add(time.Second), Valid: true}, false},
		{"driver.Valuer equal (ptr to nil ptr)", (*ModifyAt)(nil), &ModifyAt{}, false},
	}
	for _, test := range assertEqualTests {

         *
         * @param name file name
         * @param size file size
         * @param lastModified last modified time
         * @param isDirectory true if directory
         * @param attributes file attributes
         * @param creationTime creation time
         * @param lastAccessTime last access time
         */
        public FileInfo(String name, long size, long lastModified, boolean isDirectory, long attributes, long creationTime,

	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	// Run the site resync metrics load in a loop
	for {
		if err := sm.load(ctx, newObjectLayerFn()); err == nil {
			<-ctx.Done()
			return
		}
		duration := max(time.Duration(r.Float64()*float64(time.Second*10)),
			// Make sure to sleep at least a second to avoid high CPU ticks.
			time.Second)
		time.Sleep(duration)
	}
}

import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.ArrayList;
import java.util.List;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

	sysCPUAvgIOWaitMD = NewGaugeMD(sysCPUAvgIOWait, "Average CPU IOWait time")
	sysCPULoadMD      = NewGaugeMD(sysCPULoad, "CPU load average 1min")
	sysCPULoadPercMD  = NewGaugeMD(sysCPULoadPerc, "CPU load average 1min (percentage)")
	sysCPUNiceMD      = NewGaugeMD(sysCPUNice, "CPU nice time")
	sysCPUStealMD     = NewGaugeMD(sysCPUSteal, "CPU steal time")

        .build()

    // Stalling the socket will cause TWO requests to time out!
    server.enqueue(MockResponse.Builder().onRequestStart(Stall).build())

    // The 3rd request should be sent to a fresh connection.
    server.enqueue(
      MockResponse(body = "fresh connection"),
    )

    // The first call times out.
    val call1 = client.newCall(Request(server.url("/")))