2011/5/20 Lennart Poettering <lenn...@poettering.net>: > On Fri, 20.05.11 17:40, Chen Jie (ch...@lemote.com) wrote: > >> 2011/5/19 Chen Jie <ch...@lemote.com>: >> > 2011/5/18 Kay Sievers <kay.siev...@vrfy.org>: >> >> >> >> Completely different! That's an Intel Core Duo 1.4 GHz laptop: >> >> systemd-analyze blame | grep udev >> >> 87ms udev-trigger.service >> >> 13ms udev.service >> > I updated systemd(to v26) and udev(to 168), still got ~1s startup time >> > of udev.service plus udev-trigger.service. >> > >> > May be some distribution added udev rules cause this? I'll do a >> > bootchart to see the detail. >> See the attachment. > > There are a ton of things udev seems to be calling. A lot of it doesn't > look right. i.e. systemctl being called from udev doesn't look > right. And ps? grep? hdparm?? sync??? alsa-utils looks wrong too? mount? Did some investigation, here is the result: 1. grep is invoked by 80-networking.rules, which is added to help to parse debian's network setting. -- "dpkg -S /lib/udev/net.agent" -> udev: /lib/udev/net.agent
2. hdparm is called by z60_hdparm.rules, imported by deb package hdparm. -- z60_hdparm.rules is a symbol link to /etc/udev/hdparm.rules 3. alsa-utils is called by 80-alsa.rules, imported by deb package alsa-utils. -- "dpkg -S /lib/udev/alsa-utils" -> alsa-utils: /lib/udev/alsa-utils 4. mount is called by 50-udev-default.rules, I guess it was shipped with vanilla udev, since the same rule exists on my gentoo box... -- 50-udev-default.rules:102: RUN+="/bin/mount -t fusectl fusectl /sys/fs/fuse/connections" > > The exim script looks really borked too. And the mkdir/rm sprinkled > around dbus/rsyslog is suspicous too. > > I think the distro you are using is a bit too hack-happy... Your > downstream udev maintainers really should spend some time on cleaning up > those udev rules. Upstream udev doesn't ship that nonsense! > > Lennart > > -- > Lennart Poettering - Red Hat, Inc. > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/systemd-devel > _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
