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    • 好的，Nice！我们来看看为什么开机这么久！
    deepin Talks 6345 views · 57 replies ·
    Tofloor
    poster avatar
    dzuiuabi
    deepin
    2017-12-29 17:27
    Author
    没有滑稽很不习惯。

    2. ~$ systemd-analyze
    3. Startup finished in 8.193s (kernel) + 53.255s (userspace) = 1min 1.448s
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    开了1分多钟，我觉得我可以在睡一会儿然后……
    然后在看看是什么东西这么拖后退。
    1. ~$ systemd-analyze blame
    2.          24.305s NetworkManager-wait-online.service
    3.           8.426s dev-sda8.device
    4.           6.966s ModemManager.service
    5.           6.621s nmbd.service
    6.           6.572s systemd-journal-flush.service
    7.           4.304s networking.service
    8.           4.301s smbd.service
    9.           3.954s accounts-daemon.service
    10.           2.965s NetworkManager.service
    11.           1.913s lightdm.service
    12.           1.823s avahi-daemon.service
    13.           1.775s systemd-logind.service
    14.           1.740s lvm2-monitor.service
    15.           1.696s keyboard-setup.service
    16.           1.552s systemd-binfmt.service
    17.           1.466s polkit.service
    18.           1.367s wpa_supplicant.service
    19.           1.362s lastore-daemon.service
    20.           1.333s systemd-backlight@backlight:acpi_video0.service
    21.           1.242s systemd-udevd.service
    22.           1.171s proc-sys-fs-binfmt_misc.mount
    23.           1.147s systemd-tmpfiles-setup.service
    24.           1.065s sys-kernel-debug.mount
    25.           1.035s dev-hugepages.mount
    26.            953ms systemd-modules-load.service
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    哇呜~！第一次看见要启动这么长时间的服务，哇哦！抓住了一个大家伙！我在其他人晒出的开机时间和Blame也没看到NetworkManager-wait-online.service这个东西啊，怎么就占时间了嘛？

    于是我找了一些资料

    [page]

    [size=13.3333px]Hi
    [size=13.3333px]I see

    [size=13.3333px]Code:
    7.872s NetworkManager-wait-online.service
    [size=13.3333px]when I run a

    [size=13.3333px]Code:
    systemd-analyze blame
    [size=13.3333px]Is this normal?
    [size=13.3333px]Seems like it is adding a LOT of time to my boot.

    [size=13.3333px]Any way to optimize?

    [size=13.3333px]Centos 7 + MATE install
    [size=13.3333px]

    [size=13.3333px]有人就回复了：
    Nope.

    the problem is that systemd assumes the network is ready for use as soon as it starts NetworkManager.

    When this is the case, nearly all network dependent actions fail - from network based filesystems, name lookups, time synchronization, databases, network user identifications (LDAP/NIS/...).

    So much fails that the systemd developers had to start modifying a ton of other applications (this one being NetworkManager).

    NetworkManager-wait-online is required to delay until the network is usable. This required modification of NetworkManager to explicitly send a "ready" signal back to systemd. This normally works (DHCP clients got modified too). And even the database servers got modified for the same reason.

    This is one of the reasons systemd is considered a poor design, and imposes a LOT of things on services.

    意思就是这个服务必须要这样启动？网络服务，总而言之，很糟糕，我可能是这个论坛开机醉酒的用户

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    jesin
    deepin
    2018-01-01 19:08
    #41
    把默认timeout=30s改小一点就行了
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    dzuiuabi
    deepin
    2018-01-01 19:37
    #42
    https://bbs.deepin.org/post/150831
    没有ssd，省钱玩个鸡？
    没有电脑的区别，只有hdd，和ssd的区别。

    哇，那你多加几块就好了。
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    lulinux
    2018-01-01 19:39
    我要省钱玩个鸡
    avatar
    152******22
    deepin
    2018-01-02 19:27
    #43
    https://bbs.deepin.org/post/150831
    建议把docker.service和php设为手动启动吧。

    这个，不是很影响，，，good idea!
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    9***8@qq.com
    deepin
    2018-01-07 07:08
    #44
    在ubuntu下：


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    dzuiuabi
    deepin
    2018-01-07 17:49
    #45
    https://bbs.deepin.org/post/150831
    在ubuntu下：

    这……不就是睁一下眼闭一下眼就开机了吗
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    lineme
    2018-01-22 20:41
    是啊，七八秒的样子
    avatar
    lxflhy
    deepin
    2018-01-07 18:27
    #46
    我也来晒晒
    lxflhy@lxflhy-PC:~$ systemd-analyze
    Startup finished in 11.236s (kernel) + 31.857s (userspace) = 43.094s
    lxflhy@lxflhy-PC:~$ systemd-analyze blame
             11.047s plymouth-quit-wait.service
              8.670s nmbd.service
              6.562s NetworkManager-wait-online.service
              5.189s dev-sda11.device
              2.978s systemd-fsck@dev-disk-by\x2duuid-0ABA\x2dF6AA.service
              2.811s ModemManager.service
              2.783s lvm2-monitor.service
              2.557s systemd-fsck@dev-disk-by\x2duuid-68101085\x2dcfcc\x2d4c1d\x2d881e\x2d09c6315a670a
              2.320s upower.service
              1.790s systemd-journal-flush.service
              1.678s systemd-logind.service
              1.600s pppd-dns.service
              1.597s alsa-restore.service
              1.490s virtualbox.service
              1.435s systemd-udevd.service
              1.305s avahi-daemon.service
              1.294s bluetooth.service
              1.284s systemd-rfkill.service
              1.074s accounts-daemon.service
              1.065s NetworkManager.service
              1.035s systemd-tmpfiles-setup-dev.service
               973ms lightdm.service
               760ms systemd-binfmt.service
               684ms polkit.service
               523ms proc-sys-fs-binfmt_misc.mount
               498ms home.mount
               490ms wpa_supplicant.service
               485ms systemd-remount-fs.service
               470ms networking.service
               463ms systemd-backlight@backlight:intel_backlight.service
               459ms dev-hugepages.mount
               457ms sys-kernel-debug.mount
               455ms dev-mqueue.mount
               408ms smbd.service
               365ms lastore-daemon.service
               298ms kmod-static-nodes.service
               293ms systemd-tmpfiles-setup.service
               275ms systemd-user-sessions.service
               267ms systemd-udev-trigger.service
               255ms boot-efi.mount
               249ms systemd-timesyncd.service
               238ms udisks2.service
               223ms systemd-random-seed.service
               206ms systemd-tmpfiles-clean.service
               202ms systemd-journald.service
                85ms systemd-sysctl.service
                61ms systemd-update-utmp.service
                50ms miracle-dispd.service
                44ms systemd-modules-load.service
                28ms user@1000.service
                28ms plymouth-read-write.service
                20ms miracle-wifid.service
                13ms plymouth-start.service
                 5ms systemd-update-utmp-runlevel.service
                 2ms sys-fs-fuse-connections.mount
                 1ms hostapd.service

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    la******ng@outlook.com
    deepin
    2018-01-07 19:08
    #47
    為什么你 NetworkManager 需要花这么久的时间？
    1. Startup finished in 9.881s (firmware) + 2.631s (loader) + 11.732s (kernel) + 9.072s (userspace) = 33.318s
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    1.           3.584s ufw.service
    2.           3.168s lvm2-monitor.service
    3.           2.918s dev-sdb2.device
    4.           1.738s NetworkManager.service
    5.           1.427s lightdm.service
    6.           1.334s ModemManager.service
    7.           1.264s systemd-journal-flush.service
    8.           1.125s systemd-hwdb-update.service
    9.           1.040s nmbd.service
    10.            999ms samba.service
    11.            863ms accounts-daemon.service
    12.            763ms ldconfig.service
    13.            632ms systemd-tmpfiles-setup-dev.service
    14.            618ms systemd-sysusers.service
    15.            452ms polkit.service
    16.            447ms org.cups.cupsd.service
    17.            409ms systemd-udevd.service
    18.            382ms systemd-timedated.service
    19.            382ms smbd.service
    20.            340ms udisks2.service
    21.            331ms avahi-daemon.service
    22.            238ms systemd-random-seed.service
    23.            237ms systemd-tmpfiles-setup.service
    24.            236ms dev-hugepages.mount
    25.            235ms systemd-modules-load.service
    26.            234ms kmod-static-nodes.service
    27.            211ms systemd-udev-trigger.service
    28.            205ms user@1000.service
    29.            198ms upower.service
    30.            181ms systemd-timesyncd.service
    31.            173ms systemd-update-utmp.service
    32.            171ms boot-efi.mount
    33.            162ms systemd-resolved.service
    34.            156ms systemd-journal-catalog-update.service
    35.            138ms systemd-user-sessions.service
    36.            119ms dev-mqueue.mount
    37.            103ms home.mount
    38.             93ms systemd-journald.service
    39.             89ms systemd-sysctl.service
    40.             56ms systemd-logind.service
    41.             42ms rtkit-daemon.service
    42.             23ms systemd-networkd.service
    43.              8ms systemd-update-done.service
    44.              6ms systemd-remount-fs.service
    45.              4ms sys-kernel-debug.mount
    46.              2ms alsa-restore.service
    47.              1ms sys-kernel-config.mount
    48.              1ms sys-fs-fuse-connections.mount
    49.              1ms tmp.mount
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    dzuiuabi
    deepin
    2018-01-07 21:56
    #48
    https://bbs.deepin.org/post/150831
    我也来晒晒
    lxflhy@lxflhy-PC:~$ systemd-analyze
    Startup finished in 11.236s (kernel) + 31.857s (users ...

    比我快
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    dzuiuabi
    deepin
    2018-01-07 21:57
    #49
    https://bbs.deepin.org/post/150831
    為什么你 NetworkManager 需要花这么久的时间？

    我也不知道，不过现在我的这个不会要这么长时间了
    1. ~$ systemd-analyze
    2. Startup finished in 8.533s (kernel) + 59.615s (userspace) = 1min 8.149s
    3. ~$ systemd-analyze blame
    4.          17.942s smbd.service
    5.          12.255s systemd-journal-flush.service
    6.          10.189s nmbd.service
    7.           8.181s dev-sda8.device
    8.           8.015s ModemManager.service
    9.           6.910s NetworkManager-wait-online.service
    10.           5.809s apt-daily.service
    11.           5.321s accounts-daemon.service
    12.           4.904s networking.service
    13.           4.369s systemd-logind.service
    14.           4.282s pppd-dns.service
    15.           4.277s alsa-restore.service
    16.           4.050s avahi-daemon.service
    17.           2.101s lvm2-monitor.service
    18.           1.928s NetworkManager.service
    19.           1.792s lightdm.service
    20.           1.522s wpa_supplicant.service
    21.           1.509s keyboard-setup.service
    22.           1.269s systemd-tmpfiles-setup-dev.service
    23.           1.164s systemd-modules-load.service
    24.           1.103s systemd-backlight@backlight:acpi_video0.service
    25.           1.007s systemd-binfmt.service
    26.            956ms lastore-daemon.service
    27.            944ms polkit.service
    28.            858ms systemd-udevd.service
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    lxflhy
    deepin
    2018-01-07 22:07
    #50
    dzuiuabi 发表于 2018-1-7 13:56
    比我快

    本来蛮快的，整那个4.14测试版，给整慢了，每次开机都会有个啥东西加载失败顿了一会
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    dzuiuabi
    deepin
    2018-01-08 00:27
    #51
    https://bbs.deepin.org/post/150831
    本来蛮快的，整那个4.14测试版，给整慢了，每次开机都会有个啥东西加载失败顿了一会 ...

    我现在越来越慢了哈哈哈
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    hrwfox
    deepin
    2018-01-08 05:44
    #52
    本帖最后由 hrwfox 于 2018-1-7 21:45 编辑

    $ systemd-analyze
    Startup finished in 3.801s (kernel) + 7.432s (userspace) = 11.234s
    渣渣笔记本的
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    打击越
    deepin
    2018-01-08 06:19
    #53

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    dzuiuabi
    deepin
    2018-01-09 17:35
    #54
    https://bbs.deepin.org/post/150831
    $ systemd-analyze
    Startup finished in 3.801s (kernel) + 7.432s (userspace) = 11.234s
    渣渣笔记本的[sm ...

    哇，我不相信这是真的。
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    EmcZero
    deepin
    2018-04-26 16:28
    #55
    plymouth在深度系统中直接与dde关联，删不掉的
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    无名小卒
    deepin
    2018-04-27 00:44
    #56
    1. $ systemd-analyze
    2. Startup finished in 23.322s (firmware) + 4.048s (loader) + 5.273s (kernel) + 21.235s (userspace) = 53.880s
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    1. systemd-analyze blame
    2.          10.058s NetworkManager-wait-online.service
    3.           4.495s keyboard-setup.service
    4.           4.471s dev-sdb3.device
    5.           1.843s plymouth-start.service
    6.           1.748s lvm2-monitor.service
    7.           1.344s systemd-journal-flush.service
    8.           1.257s systemd-modules-load.service
    9.           1.243s systemd-udevd.service
    10.           1.182s NetworkManager.service
    11.           1.164s ModemManager.service
    12.            870ms nmbd.service
    13.            853ms accounts-daemon.service
    14.            826ms systemd-fsck@dev-disk-by\x2duuid-c965c186\x2de4c7\x2d4826\x2d892a\x2de7d1c1196992.service
    15.            824ms networking.service
    16.            762ms lastore-daemon.service
    17.            689ms home.mount
    18.            669ms systemd-rfkill.service
    19.            663ms systemd-fsck@dev-disk-by\x2duuid-add3d8f5\x2d5120\x2d4d50\x2d9ce4\x2d9b3352055d53.service
    20.            627ms systemd-backlight@backlight:intel_backlight.service
    21.            622ms systemd-logind.service
    22.            580ms upower.service
    23.            512ms systemd-fsck@dev-disk-by\x2duuid-df5cf64f\x2dbb1a\x2d4332\x2daa50\x2df3d253acf2bb.service
    24.            427ms systemd-binfmt.service
    25.            407ms systemd-tmpfiles-setup-dev.service
    26.            378ms lightdm.service
    27.            377ms plymouth-quit-wait.service
    28.            374ms systemd-udev-trigger.service
    29.            361ms virtualbox.service
    30.            338ms smbd.service
    31.            333ms systemd-random-seed.service
    32.            307ms systemd-tmpfiles-clean.service
    33.            248ms bluetooth.service
    34.            234ms systemd-sysctl.service
    35.            233ms udisks2.service
    36.            230ms systemd-timesyncd.service
    37.            226ms polkit.service
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    mhlan
    deepin
    2018-04-27 01:12
    #57
    我的也是这个贼大
    1. 12.140s NetworkManager-wait-online.service
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    一共都20秒，这就占了一半
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