使用 systemd-analyze blame 分析结果如下:
这个NetworkManager-wait-online.service是什么玩意?用时这么长?16.333s NetworkManager-wait-online.service
8.259s dev-sda6.device
7.360s ModemManager.service
5.923s apt-daily.service
4.400s accounts-daemon.service
4.225s grub-common.service
3.457s ondemand.service
3.454s apport.service
3.257s apparmor.service
2.889s vboxdrv.service
2.799s console-kit-log-system-start.service
2.791s lm-sensors.service
2.785s pppd-dns.service
2.680s avahi-daemon.service
2.606s NetworkManager.service
1.813s plymouth-read-write.service
1.599s networking.service
1.337s gpu-manager.service
1.277s apt-daily-upgrade.service
1.241s colord.service
1.225s lightdm.service
1.162s systemd-fsck@dev-disk-by\x2duuid-37109fe8\x2de816\x2d4588\x2da4
1.158s systemd-tmpfiles-setup-dev.service
1.117s systemd-logind.service
1.105s rsyslog.service
1.098s thermald.service
819ms irqbalance.service
818ms keyboard-setup.service
775ms speech-dispatcher.service
770ms systemd-modules-load.service
614ms ntp.service
569ms udisks2.service
569ms systemd-journald.service
567ms polkitd.service
555ms binfmt-support.service
546ms console-setup.service
502ms dev-mqueue.mount
dev-sda6.device————sda6是根分区,ext4文件系统,也没有啥错误,咋也这么费时?
诸位帮忙看看如何优化?