Bug#1071429: dpkg: `dpkg-db-backup.timer` starts `dpkg-db-backup.service` in hot path of boot
Hi! On Sun, 2024-05-19 at 07:09:24 +0200, Paul Menzel wrote: > Package: dpkg > Version: 1.22.6 > Severity: normal > Trying to decrease the boot time of a desktop system (pressing the power > button to GDM login screen), I noticed `dpkg-db-backup.service` in the > hotpath: […] > It’d be great if this could be moved out the hot path, for example, by > running it at least ten(?) minutes after the system has been started. I'm not sure systemd provides something to implement the requested behavior though. The closest I see is RandomizedDelaySec, but that will not guarantee the delay. If you can suggest a specific change then we can discuss that, otherwise, I'm afraid this might need to be closed? Thanks, Guillem
Bug#1071429: dpkg: `dpkg-db-backup.timer` starts `dpkg-db-backup.service` in hot path of boot
Package: dpkg Version: 1.22.6 Severity: normal Dear Debian folks, Trying to decrease the boot time of a desktop system (pressing the power button to GDM login screen), I noticed `dpkg-db-backup.service` in the hotpath: May 19 06:18:53.272044 abreu systemd[1]: Started dpkg-db-backup.timer - Daily dpkg database backup timer. […] May 19 06:18:53.280049 abreu kernel: i915 :00:02.0: [drm] fb0: i915drmfb frame buffer device […] May 19 06:18:53.313754 abreu systemd[1]: Starting dbus.service - D-Bus System Message Bus... […] May 19 06:18:53.479594 abreu systemd[1]: Starting dpkg-db-backup.service - Daily dpkg database backup service... […] May 19 06:18:53.974802 abreu systemd[1]: dpkg-db-backup.service: Deactivated successfully. […] May 19 06:18:53.975072 abreu systemd[1]: Finished dpkg-db-backup.service - Daily dpkg database backup service. […] May 19 06:18:53.985305 abreu systemd[1]: Reached target network.target - Network. […] May 19 06:18:54.166818 abreu systemd[1]: Started gdm.service - GNOME Display Manager. It’d be great if this could be moved out the hot path, for example, by running it at least ten(?) minutes after the system has been started. Kind regards, Paul PS: ``` $ systemctl cat dpkg-db-backup.timer # /usr/lib/systemd/system/dpkg-db-backup.timer [Unit] Description=Daily dpkg database backup timer Documentation=man:dpkg(1) [Timer] OnCalendar=daily Persistent=true [Install] WantedBy=timers.target $ systemctl cat dpkg-db-backup.service # /usr/lib/systemd/system/dpkg-db-backup.service [Unit] Description=Daily dpkg database backup service Documentation=man:dpkg(1) [Service] Type=oneshot ExecStart=/usr/libexec/dpkg/dpkg-db-backup $ systemd-analyze blame 4.396s systemd-suspend.service 1.295s fwupd.service 535ms cups.service 517ms boot-efi.mount 507ms NetworkManager.service 495ms dpkg-db-backup.service 489ms accounts-daemon.service 478ms dev-mapper-nvme0n1p3_crypt.device 456ms gnome-remote-desktop.service 454ms udisks2.service 446ms fwupd-refresh.service 430ms strongswan.service 418ms power-profiles-daemon.service 399ms ssh.service 390ms systemd-journal-flush.service 377ms e2scrub_reap.service 325ms avahi-daemon.service 317ms upower.service 304ms user@5272.service 298ms xl2tpd.service 295ms systemd-udev-trigger.service 289ms systemd-tmpfiles-clean.service 286ms systemd-logind.service 250ms lm-sensors.service 243ms switcheroo-control.service 242ms etckeeper.service 193ms smartmontools.service 169ms systemd-journald.service 161ms grub-common.service 145ms apparmor.service 140ms systemd-fsck@dev-disk-by\x2duuid-96BD\x2d5653.service 128ms wpa_supplicant.service 125ms systemd-cryptsetup@nvme0n1p3_crypt.service 123ms systemd-udevd.service 120ms polkit.service 112ms gdm.service 112ms systemd-backlight@backlight:intel_backlight.service 108ms systemd-fsck@dev-disk-by\x2duuid-2d23fd4c\x2d5d03\x2d4e1a\x2d8a42\x2d0e859d1f00d8.service 105ms dev-disk-by\x2ddiskseq-1\x2dpart4.swap 104ms dbus.service 91ms colord.service 91ms nvmf-autoconnect.service 90ms systemd-rfkill.service 85ms systemd-hostnamed.service 82ms dev-hugepages.mount 79ms dev-mqueue.mount 78ms systemd-tmpfiles-setup.service 75ms sys-kernel-debug.mount 68ms sys-kernel-tracing.mount 67ms atop.service 66ms systemd-modules-load.service 64ms kmod-static-nodes.service 60ms modprobe@configfs.service 58ms systemd-timesyncd.service 54ms systemd-remount-fs.service 53ms systemd-backlight@leds:dell::kbd_backlight.service 53ms modprobe@dm_mod.service 52ms modprobe@drm.service 51ms modprobe@efi_pstore.service 45ms modprobe@fuse.service 44ms systemd-tmpfiles-setup-dev-early.service 42ms modprobe@loop.service 42ms boot.mount 39ms systemd-binfmt.service 37ms modprobe@nvme_fabrics.service 33ms systemd-udev-load-credentials.service 32ms systemd-user-sessions.service 25ms rtkit-daemon.service 24ms systemd-random-seed.service 24ms systemd-tmpfiles-setup-dev.service 22ms user-runtime-dir@5272.service 20ms systemd-sysctl.service 20ms systemd-update-utmp-runlevel.service 18ms systemd-update-utmp.service 16ms proc-sys-fs-binfmt_misc.mount 13ms sys-kernel-config.mount 10ms alsa-restore.service 10ms sys-fs-fuse-connections.mount ```
