Comments (9)
ranch-verdin
commented on August 21, 2024
maybe systemd-analyze blame will come in handy
from norns-image.
ranch-verdin
commented on August 21, 2024
here are the outputs from systemd-analyze & systemd-analyze blame
pi@norns:~$ sudo systemd-analyze
Startup finished in 3.055s (kernel) + 1min 31.100s (userspace) = 1min 34.156s
output from systemd-analyze blame:
8.837s rc-local.service
3.348s dev-mmcblk0p2.device
1.356s cairotest.service
1.165s nginx.service
1.079s keyboard-setup.service
1.008s dphys-swapfile.service
760ms raspi-config.service
641ms systemd-udev-trigger.service
614ms plymouth-start.service
549ms ssh.service
490ms systemd-timesyncd.service
416ms rsyslog.service
397ms systemd-fsck@dev-disk-by\x2dpartuuid-adeaab52\x2d01.service
395ms triggerhappy.service
296ms systemd-logind.service
280ms systemd-fsck-root.service
264ms systemd-journald.service
248ms systemd-remount-fs.service
224ms avahi-daemon.service
221ms networking.service
180ms systemd-udevd.service
175ms sys-kernel-debug.mount
170ms alsa-restore.service
167ms screentest.service
159ms systemd-tmpfiles-setup-dev.service
143ms dev-mqueue.mount
129ms kmod-static-nodes.service
124ms fake-hwclock.service
122ms systemd-tmpfiles-clean.service
122ms systemd-tmpfiles-setup.service
122ms systemd-modules-load.service
122ms nfs-config.service
121ms systemd-rfkill.service
118ms console-setup.service
111ms [email protected]
109ms plymouth-read-write.service
77ms systemd-sysctl.service
70ms systemd-update-utmp.service
66ms boot.mount
64ms systemd-update-utmp-runlevel.service
64ms systemd-journal-flush.service
58ms plymouth-quit.service
57ms systemd-user-sessions.service
52ms plymouth-quit-wait.service
47ms run-rpc_pipefs.mount
40ms systemd-random-seed.service
28ms sys-kernel-config.mount
17ms dhcpcd.service
from norns-image.
tehn
commented on August 21, 2024
we should perhaps start with a clean raspbian image and strip back from
there, since some things got added ie nginx.
thanks for the dump, very insightful
…On Fri, Feb 2, 2018 at 8:47 AM ranch-verdin ***@***.***> wrote:
here are the outputs from systemd-analyze & systemd-analyze blame
***@***.***:~$ sudo systemd-analyze
Startup finished in 3.055s (kernel) + 1min 31.100s (userspace) = 1min 34.156s
output from systemd-analyze blame:
8.837s rc-local.service
3.348s dev-mmcblk0p2.device
1.356s cairotest.service
1.165s nginx.service
1.079s keyboard-setup.service
1.008s dphys-swapfile.service
760ms raspi-config.service
641ms systemd-udev-trigger.service
614ms plymouth-start.service
549ms ssh.service
490ms systemd-timesyncd.service
416ms rsyslog.service
397ms ***@***.***\x2dpartuuid-adeaab52\x2d01.service
395ms triggerhappy.service
296ms systemd-logind.service
280ms systemd-fsck-root.service
264ms systemd-journald.service
248ms systemd-remount-fs.service
224ms avahi-daemon.service
221ms networking.service
180ms systemd-udevd.service
175ms sys-kernel-debug.mount
170ms alsa-restore.service
167ms screentest.service
159ms systemd-tmpfiles-setup-dev.service
143ms dev-mqueue.mount
129ms kmod-static-nodes.service
124ms fake-hwclock.service
122ms systemd-tmpfiles-clean.service
122ms systemd-tmpfiles-setup.service
122ms systemd-modules-load.service
122ms nfs-config.service
121ms systemd-rfkill.service
118ms console-setup.service
111ms ***@***.***
109ms plymouth-read-write.service
77ms systemd-sysctl.service
70ms systemd-update-utmp.service
66ms boot.mount
64ms systemd-update-utmp-runlevel.service
64ms systemd-journal-flush.service
58ms plymouth-quit.service
57ms systemd-user-sessions.service
52ms plymouth-quit-wait.service
47ms run-rpc_pipefs.mount
40ms systemd-random-seed.service
28ms sys-kernel-config.mount
17ms dhcpcd.service
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ranch-verdin
commented on August 21, 2024
Just flashed a clean raspbian_lite stretch image, then:
sudo systemctl disable dhcpcd
sudo systemctl disable avahi-daemon.service
sudo systemctl disable networking.service
sudo systemctl disable raspi-config.service
sudo systemctl disable triggerhappy.service
sudo systemctl disable plymouth-start
sudo systemctl disable plymouth-start.service
sudo systemctl disable plymouth-read-write.service
sudo systemctl disable plymouth-quit-wait.service
sudo systemctl disable plymouth-quit.service
sudo systemctl disable rc.local.service
total boot time = 16s (seems pretty repeatable). As with the supplied norns image, there's a stuck systemd job which confuses systemd-analyze for 90s after boot.
from norns-image.
ranch-verdin
commented on August 21, 2024
with arch linux http://os.archlinuxarm.org/os/ArchLinuxARM-rpi-2-latest.tar.gz:
systemctl disable sshd
systemd disable systemd-networkd.service
systemctl disable systemd-timesyncd.service
systemctl disable systemd-modules-load.service
systemctl disable tmp.mount
total boot time = 16s
and the output of systemd-analyze makes more sense than on raspbian:
[root@alarmpi ~]# systemd-analyze
Startup finished in 6.853s (kernel) + 2.625s (userspace) = 9.478s
graphical.target reached after 2.624s in userspace
[root@alarmpi ~]# systemd-analyze blame
1.063s lvm2-monitor.service
929ms dev-mmcblk0p2.device
369ms systemd-resolved.service
252ms systemd-journal-flush.service
199ms [email protected]
194ms systemd-udev-trigger.service
181ms systemd-logind.service
134ms systemd-remount-fs.service
132ms systemd-tmpfiles-setup-dev.service
128ms systemd-user-sessions.service
122ms sys-kernel-debug.mount
120ms systemd-modules-load.service
116ms ldconfig.service
108ms systemd-sysusers.service
108ms systemd-journald.service
104ms kmod-static-nodes.service
80ms tmp.mount
78ms systemd-journal-catalog-update.service
70ms systemd-update-utmp.service
65ms systemd-sysctl.service
63ms systemd-udevd.service
58ms systemd-tmpfiles-setup.service
55ms dev-mqueue.mount
39ms systemd-random-seed.service
32ms systemd-update-done.service
31ms sys-kernel-config.mount
13ms boot.mount
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ranch-verdin
commented on August 21, 2024
buildroot's default build for rpi3 boots the norns in 7 seconds into a minimalist linux system, woot!
steps:
git clone git://git.buildroot.net/buildroot
cd buildroot
make raspberrypi3_defconfig
## I skipped this stage
# make menuconfig
make
several hours & 5.5Gb later a linux distro pops out - magic!
On the device I did:
mv /etc/init.d/s40network /etc/init.d/disable.s40network
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tehn
commented on August 21, 2024
holy smokes!!! 5.5gb though?
from norns-image.
ranch-verdin
commented on August 21, 2024
yes, that's not a typo!
the image is 93Mb (http://rickvenn.com/sdcard.img), 5.5Gb is all the cruft buildroot has to download in order to cross-compile a whole linux system
output/images [master] » sha1sum sdcard.img
88dd267cf6b4af2abb5591a8b1fac133451996f0 sdcard.img
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tehn
commented on August 21, 2024
sub-goal of #22
from norns-image.
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