Was sind Flughafen-Scan-Anforderungen?

Ich habe eine Menge Protokollierungsgeräusche, die bösartig zu sein scheinen und nicht „Problem“ schreien, wenn ich es mir ansehe. Es ist so häufig, dass es fast endlos ist, und dass es mit drahtlosen Netzwerken zusammenhängt. Ich würde gerne wissen, was es bedeutet (aus verschiedenen Gründen wie Sicherheit oder Akkulaufzeit ...).

Da ich netzwerkbezogen bin, habe ich Bluetooth deaktiviert und mit der Thunderbolt Bridge die Einstellung IPv4 konfigurierenOff auf geändert . Ich denke, man kann mit Sicherheit sagen, dass all diese Nachrichten auftreten, während ich mit einem vertrauenswürdigen Netzwerk verbunden bin.

Welche Bedeutung haben diese Informationen, von denen die Softwareingenieure entschieden haben, dass sie es wert sind, protokolliert zu werden?

Systeminformationen

Hardware Overview:
  Model Name:   MacBook Pro
  Model Identifier: MacBookPro11,1
  Processor Name:   Intel Core i5
  Memory:   16 GB
  Boot ROM Version: MBP111.0138.B11
  SMC Version (system): 2.16f68
System Software Overview:

  System Version:   OS X 10.10 (14A389)
  Kernel Version:   Darwin 14.0.0
  Boot Volume:  Macintosh HD
  Boot Mode:    Normal
WiFi:
  Software Versions:
  CoreWLAN: 5.0 (500.35.2)
  CoreWLANKit:  4.0 (400.35)
  Menu Extra:   10.0 (1000.33.2)
  System Information:   9.0 (900.9)
  IO80211 Family:   7.0 (700.52)
  Diagnostics:  4.0 (400.68)
  AirPort Utility:  6.3.4 (634.17)
  Interfaces:
en0:
  Card Type:    AirPort Extreme  (0x14E4, 0x112)
  Firmware Version: Broadcom BCM43xx 1.0 (7.15.124.12.8)
  Locale:   FCC
  Country Code: US
  Supported PHY Modes:  802.11 a/b/g/n/ac

Protokollbeispiel

10/24/14 1:01:45.000 AM kernel[0]: en0::IO80211Interface::postMessage bssid changed
10/24/14 1:01:45.000 AM kernel[0]: IO80211AWDLPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from AUTO to SUSPENDED
10/24/14 1:01:45.000 AM kernel[0]: IO80211AWDLPeerManager::setAwdlSuspendedMode() Suspending AWDL, enterQuietMode(true)
10/24/14 1:01:45.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:01:45.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:01:45.000 AM kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
10/24/14 1:01:45.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:01:45.000 AM kernel[0]: en0::IO80211Interface::postMessage bssid changed
10/24/14 1:01:46.000 AM kernel[0]: IO80211AWDLPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from SUSPENDED to AUTO
10/24/14 1:01:46.000 AM kernel[0]: IO80211AWDLPeerManager::setAwdlAutoMode Resuming AWDL
10/24/14 1:01:52.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:01:52.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:11.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:12.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:13.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 29) (2 SSIDs, 0 BSSIDs).
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:02:14.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:16.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:02:16.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:17.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:02:17.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 24 seconds.
10/24/14 1:02:22.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:02:22.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:02:41.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:02:41.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 6 seconds.
10/24/14 1:02:47.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:02:47.000 AM kernel[0]: IO80211ScanManager::cachePurge: NOT Rescheduling.
10/24/14 1:03:51.000 AM kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
10/24/14 1:03:57.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:03:57.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:04:21.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:04:21.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 29 seconds.
10/24/14 1:04:25.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:04:25.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:04:50.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:04:50.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 29 seconds.
10/24/14 1:04:54.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:04:54.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:05:19.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:05:19.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 26 seconds.
10/24/14 1:05:20.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:05:20.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:05:45.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:05:45.000 AM kernel[0]: IO80211ScanManager::cachePurge: NOT Rescheduling.
10/24/14 1:08:38.000 AM kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
10/24/14 1:08:43.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:08:43.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:09:08.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:09:08.000 AM kernel[0]: IO80211ScanManager::cachePurge: NOT Rescheduling.
10/24/14 1:10:45.000 AM kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
10/24/14 1:10:50.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:10:50.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:15.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:11:15.000 AM kernel[0]: IO80211ScanManager::cachePurge: NOT Rescheduling.
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:42.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:43.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:43.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:43.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:44.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:44.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:44.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:45.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:46.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:47.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:47.000 AM kernel[0]: IO80211ScanManager::startScan: pid 29 had pending scan request. Deleting.
10/24/14 1:11:47.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:47.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:47.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:48.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:48.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:48.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:49.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:50.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:50.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:50.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:51.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:51.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:51.000 AM kernel[0]: IO80211ScanManager::startScan: Initiating scan.
10/24/14 1:11:52.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:11:54.000 AM kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 29) ().
10/24/14 1:11:54.000 AM kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 29).
10/24/14 1:12:12.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:12:12.000 AM kernel[0]: IO80211ScanManager::cachePurge: Rescheduling in 7 seconds.
10/24/14 1:12:19.000 AM kernel[0]: IO80211ScanManager::cachePurge: clearEntries[0] Firing!
10/24/14 1:12:19.000 AM kernel[0]: IO80211ScanManager::cachePurge: NOT Rescheduling.
Nicht sicher, warum es einmal pro Sekunde (oder öfter) auftritt, aber eine Scan-Anforderung würde nach verfügbaren Netzwerken suchen.
Danke, @tubedogg. Auch seltsam, dass es das tut, obwohl ich immer mit einem verbunden bin.
Übrigens, wenn das wirklich das ist, was die Nachrichten bedeuten, ist das alles, wonach ich als Antwort suche.

Antworten (1)

Bei den Scan-Anforderungen scannt das System (der Airportd-Daemon) nach verfügbaren WiFi-Netzwerken. Beim Überprüfen des Protokolls scheint es eine Minute lang ernsthaft zu sein, dann einige Minuten langsamer zu werden und dann wieder aufzunehmen. Ich bin mir nicht sicher, warum es das so oft tut, aber solange Ihre Akkulaufzeit nicht zu leiden scheint und das System während dieser Zeiträume nicht langsamer wird, würde ich mir darüber keine Sorgen machen.

Meine Akkulaufzeit ist enttäuschend, aber ich wäre ratsam, Google Chrome einfach nicht mehr zu verwenden, bevor ich das System optimiere. ;)
Ich bemerkte, dass Yosemite das Protokoll spammte, sobald ich den Powerchord einsteckte. Sobald es eingesteckt wurde, hören die Meldungen auf. Ich denke, das ist ein "Oh, der Strom ist aus, lass uns die Batterie entladen"-Ansatz. Eine der vielen Yosemite-Verbesserungen.