Bonjour,
Je regardais la vitesse de lancement des services. J'ai remarqué que le service network était plus lent à démarrer que les autres. Ce n'est pas non plus énorme vu qu'il ne s'agit que d'une dizaine de secondes mais par rapport aux autres services qui se lancent directement, c'est bizarre.
Voici ce que me donne ces différentes commandes:
Startup finished in 3.071s (firmware) + 4.239s (loader) + 11.411s (kernel) + 14.302s (userspace) = 33.024s
11.583s networking.service
1.238s apt-daily-upgrade.service
930ms dev-mapper-batmood\x2d\x2dvg\x2droot.device
873ms systemd-backlight@backlight:intel_backlight.service
360ms keyboard-setup.service
333ms ModemManager.service
330ms systemd-rfkill.service
326ms systemd-fsck@dev-disk-by\x2duuid-6655f6a7\x2d1351\x2d40a6\x2d9e2b\x2d9a306a7b8739.service
223ms systemd-udev-trigger.service
193ms lvm2-monitor.service
191ms systemd-journald.service
180ms sysstat.service
179ms systemd-logind.service
169ms avahi-daemon.service
167ms rtkit-daemon.service
158ms rsyslog.service
152ms systemd-timesyncd.service
117ms systemd-cryptsetup@sda3_crypt.service
101ms boot-efi.mount
101ms systemd-fsck@dev-mapper-batmood\x2d\x2dvg\x2dhome.service
98ms systemd-udevd.service
93ms systemd-tmpfiles-setup.service
92ms systemd-tmpfiles-setup-dev.service
80ms console-setup.service
64ms user@109.service
56ms polkit.service
54ms systemd-remount-fs.service
51ms lightdm.service
50ms user@1000.service
49ms dev-mapper-batmood\x2d\x2dvg\x2dswap_1.swap
45ms systemd-random-seed.service
45ms boot.mount
36ms systemd-modules-load.service
34ms home.mount
34ms systemd-backlight@leds:dell::kbd_backlight.service
33ms systemd-journal-flush.service
28ms sys-kernel-debug.mount
26ms dev-hugepages.mount
23ms dev-mqueue.mount
22ms kmod-static-nodes.service
22ms systemd-update-utmp.service
20ms systemd-sysctl.service
14ms systemd-update-utmp-runlevel.service
10ms systemd-user-sessions.service
systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.
graphical.target @13.122s
└─lightdm.service @13.070s +51ms
└─systemd-user-sessions.service @13.054s +10ms
└─network.target @13.053s
└─networking.service @1.468s +11.583s
└─local-fs.target @1.459s
└─home.mount @1.423s +34ms
└─systemd-fsck@dev-mapper-batmood\x2d\x2dvg\x2dhome.service @1.306s +101ms
└─dev-mapper-batmood\x2d\x2dvg\x2dhome.device @1.304s
Serait-ce possible que ça puisse être lié au fait que je n'ai pas installé le firmware pour le bluetooth?
Voici la config de l'ordinateur:
Dell inspiron 3000 - Intel N2840 - 4go RAM - 256gb SSD
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
Au niveau de dmesg, il n'y a pas de saut temporel significatif. Ce qui me fait douter de la commande systemd-analyze.
Le seul écart de quelques secondes est:
[ 3.033124] clocksource: Switched to clocksource tsc
[ 6.683224] random: crng init done
[ 10.723554] NET: Registered protocol family 38
[ 11.085545] PM: Starting manual resume from disk
[ 11.085551] PM: Hibernation image partition 254:2 present
[ 11.085552] PM: Looking for hibernation image.
[ 11.085868] PM: Image not found (code -22)
et l'une des seules erreurs est avec le bluetooth (forcément puisque je n'ai pas installé le firmware. Se peut-il que cela ralentisse le lancement du network.service?):
[ 12.373295] usbcore: registered new interface driver btusb
[ 12.413197] usb 1-2.1: firmware: failed to load ar3k/AthrBT_0x31010000.dfu (-2)
[ 12.413266] usb 1-2.1: Direct firmware load for ar3k/AthrBT_0x31010000.dfu failed with error -2
[ 12.413269] Bluetooth: Loading patch file failed
[ 12.413315] ath3k: probe of 1-2.1:1.0 failed with error -2
[ 12.413364] usbcore: registered new interface driver ath3k
Dernière modification par Batmood (09-09-2017 15:11:10)