First create such settings for the driver and pass caps when creating the WebDriver object
DesiredCapabilities caps = DesiredCapabilities.chrome(); LoggingPreferences logPrefs = new LoggingPreferences(); logPrefs.enable(LogType.PERFORMANCE, Level.INFO); caps.setCapability(CapabilityType.LOGGING_PREFS, logPrefs);
Further, for example in the test itself (or where you need to) perform:
List<LogEntry> entries = driver.manage().logs().get(LogType.PERFORMANCE).getAll(); System.out.println(entries.size() + " " + LogType.PERFORMANCE + " log entries found"); for (LogEntry entry : entries) { System.out.println( new Date(entry.getTimestamp()) + " " + entry.getLevel() + " " + entry.getMessage()); }