Ubuntu 16.04 64 bit taking around 20 sec from Login screen to desktop and around 20 seconds from grub to login screen,
tell me which services i can safely disable, i do not use virtualbox and bluetooth frequently, all other things are used like printer, wifi etc.
output of systemd-analyze
Startup finished in 5.145s (kernel) + 14.138s (userspace) = 19.284s
and output of
systemd-analyze blame
5.837s accounts-daemon.service
5.444s dev-sda6.device
4.864s grub-common.service
4.105s lightdm.service
4.075s ModemManager.service
4.001s preload.service
3.844s apparmor.service
3.566s networking.service
3.468s apport.service
3.332s ondemand.service
3.272s rsyslog.service
3.269s systemd-logind.service
3.253s alsa-restore.service
3.241s gpu-manager.service
3.226s avahi-daemon.service
3.185s systemd-user-sessions.service
3.185s pppd-dns.service
2.508s NetworkManager.service
2.003s user@1000.service
1.640s plymouth-quit-wait.service
1.245s colord.service
712ms systemd-update-utmp.service
687ms systemd-udevd.service
669ms udisks2.service
632ms polkitd.service
602ms brltty.service
572ms systemd-localed.service
567ms systemd-backlight@backlight:intel_backlight.service
543ms systemd-rfkill.service
527ms systemd-tmpfiles-setup-dev.service
519ms thermald.service
490ms systemd-tmpfiles-setup.service
464ms systemd-modules-load.service
454ms systemd-tmpfiles-clean.service
450ms systemd-timesyncd.service
428ms systemd-journald.service
371ms wpa_supplicant.service
340ms ufw.service
317ms systemd-random-seed.service
284ms console-setup.service
281ms plymouth-start.service
270ms dev-hugepages.mount
270ms sys-kernel-debug.mount
224ms systemd-udev-trigger.service
177ms dev-mqueue.mount
168ms plymouth-read-write.service
165ms upower.service
131ms dns-clean.service
103ms systemd-sysctl.service
102ms dev-disk-by\x2duuid-8bd6db03\x2da87b\x2d4614\x2d927a\x2dd5916f3
68ms systemd-hostnamed.service
49ms systemd-journal-flush.service
47ms kmod-static-nodes.service
47ms snapd.socket
32ms systemd-remount-fs.service
28ms rc-local.service
10ms resolvconf.service
10ms rtkit-daemon.service
9ms systemd-update-utmp-runlevel.service
6ms ureadahead-stop.service
4ms sys-fs-fuse-connections.mount lines 39-61/61 (END)
As well as:
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 @14.124s
└─lightdm.service @10.018s +4.105s
└─systemd-user-sessions.service @6.731s +3.185s
└─basic.target @6.625s
└─sockets.target @6.625s
└─snapd.socket @6.576s +47ms
└─sysinit.target @6.574s
└─swap.target @6.574s
└─dev-disk-by\x2duuid-8bd6db03\x2da87b\x2d4614\x2d927a\x2dd5916f3c
└─dev-disk-by\x2duuid-8bd6db03\x2da87b\x2d4614\x2d927a\x2dd5916f
lines 1-13/13 (END)
i am using a HDD with 7200 RPM, i think boot time is okay, but after login screen, i have to pass 20 secs with a blank screen, I have already disabled some startup items like ORCA, BLUETOOTH, backup monitor, accessibility etc, personal file sharing and user folder update etc, still nothing is improving, how to diagnose the culprit and treat it.
