Mit Nix wäre das nicht passiert!
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Why is the TPM so slow on boot?
I just found out about systemd-analyze, and it shows that the 5 slowest devices are all the TPM. Why is that, and can I do anything about it? I do actually use the TPM for disk encryption and Measured Boot, and can’t simply disable it. My host is a ThinkPad T14 Gen 6 AMD, and I run NixOS with this configuration.
The output of systemd-analyze blame
plaintext 5.246s sys-devices-platform-NTC0702:00-tpmrm-tpmrm0.device 5.246s dev-tpmrm0.device 4.109s sys-devices-virtual-dmi-id.device 3.661s sys-devices-platform-NTC0702:00-tpm-tpm0.device 3.661s dev-tpm0.device 3.634s dev-ttyS0.device 3.634s sys-devices-platform-serial8250-serial8250:0-serial8250:0.0-tty-ttyS0.device 3.633s sys-devices-platform-serial8250-serial8250:0-serial8250:0.2-tty-ttyS2.device 3.633s dev-ttyS2.device 3.633s dev-ttyS1.device 3.633s sys-devices-platform-serial8250-serial8250:0-serial8250:0.1-tty-ttyS1.device 3.632s dev-ttyS3.device 3.632s sys-devices-platform-serial8250-serial8250:0-serial8250:0.3-tty-ttyS3.device 3.547s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2duuid-77CE\x2dDAD4.device 3.547s sys-devices-pci0000:00-0000:00:02.1-0000:c1:00.0-nvme-nvme0-nvme0n1-nvme0n1p1.device 3.547s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S\x2dpart1.device 3.547s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S_1\x2dpart1.device 3.547s dev-disk-by\x2dpartuuid-d934ece7\x2de91d\x2d47e8\x2db93e\x2d5a9523864f89.device 3.547s dev-disk-by\x2dpartlabel-disk\x2dmain\x2dESP.device 3.547s dev-disk-by\x2did-nvme\x2deui.ace42e0055a17b99\x2dpart1.device 3.547s dev-nvme0n1p1.device 3.547s dev-disk-by\x2duuid-77CE\x2dDAD4.device 3.547s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart1.device 3.547s dev-disk-by\x2ddesignator-esp.device 3.547s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartuuid-d934ece7\x2de91d\x2d47e8\x2db93e\x2d5a9523864f89.device 3.547s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartnum-1.device 3.547s dev-disk-by\x2ddiskseq-1\x2dpart1.device 3.547s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartlabel-disk\x2dmain\x2dESP.device 3.536s dev-disk-by\x2dpartlabel-disk\x2dmain\x2dluks.device 3.536s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart2.device 3.536s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartlabel-disk\x2dmain\x2dluks.device 3.536s dev-disk-by\x2dpartuuid-b4d9eb9a\x2d04d8\x2d4a74\x2d9348\x2d0a45c1825f41.device 3.536s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartnum-2.device 3.536s dev-nvme0n1p2.device 3.536s dev-disk-by\x2duuid-cbf7bc59\x2df58d\x2d4bd5\x2d8dac\x2d4fcb5baa8106.device 3.536s sys-devices-pci0000:00-0000:00:02.1-0000:c1:00.0-nvme-nvme0-nvme0n1-nvme0n1p2.device 3.536s dev-disk-by\x2ddiskseq-1\x2dpart2.device 3.536s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S_1\x2dpart2.device 3.536s dev-disk-by\x2did-nvme\x2deui.ace42e0055a17b99\x2dpart2.device 3.536s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2dpartuuid-b4d9eb9a\x2d04d8\x2d4a74\x2d9348\x2d0a45c1825f41.device 3.536s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1\x2dpart-by\x2duuid-cbf7bc59\x2df58d\x2d4bd5\x2d8dac\x2d4fcb5baa8106.device 3.536s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S\x2dpart2.device 3.520s dev-disk-by\x2ddiskseq-1.device 3.520s dev-disk-by\x2dpath-pci\x2d0000:c1:00.0\x2dnvme\x2d1.device 3.520s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S_1.device 3.520s sys-devices-pci0000:00-0000:00:02.1-0000:c1:00.0-nvme-nvme0-nvme0n1.device 3.520s dev-disk-by\x2did-nvme\x2dSKHynix_HFS256GEM9X169N_5SE9N446214309B2S.device 3.520s dev-nvme0n1.device 3.520s dev-disk-by\x2did-nvme\x2deui.ace42e0055a17b99.device 2.164s sys-devices-pci0000:00-0000:00:08.3-0000:c6:00.0-usb3-3\x2d5-3\x2d5.2.device 2.164s dev-bus-usb-003-005.device 1.989s systemd-timesyncd.service 1.949s systemd-tpm2-setup.service 1.791s firewall.service 1.517s systemd-pcrlock-make-policy.service 1.403s home-manager-linus.service 1.261s libvirtd.service 1.171s initrd-switch-root.service 1.073s home-manager-guest.service 757ms fwupd.service 460ms NetworkManager.service 258ms systemd-journal-flush.service 252ms systemd-udev-trigger.service 231ms systemd-modules-load.service 154ms btrbk-btrbk.service 152ms systemd-pstore.service 128ms user@1000.service 106ms cups.service 103ms systemd-random-seed.service 91ms upower.service 90ms fwupd-refresh.service 89ms plymouth-quit.service 86ms systemd-tmpfiles-setup-dev.service 85ms libvirtd-config.service 84ms systemd-udevd.service 73ms suid-sgid-wrappers.service 70ms systemd-pcrlock-secureboot-authority.service 70ms systemd-pcrlock-firmware-code.service 66ms udisks2.service 66ms resolvconf.service 62ms systemd-pcrlogin@1000.service 58ms systemd-pcrlogin@994.service 58ms systemd-tmpfiles-setup.service 57ms systemd-tpm2-setup-early.service 56ms avahi-daemon.service 55ms power-profiles-daemon.service 52ms bluetooth.service 50ms polkit.service 49ms wpa_supplicant.service 49ms systemd-rfkill.service 48ms NetworkManager-ensure-profiles.service 48ms plymouth-quit-wait.service 43ms systemd-logind.service 40ms systemd-journald.service 40ms rtkit-daemon.service 40ms dbus-broker.service 38ms network-local-commands.service 37ms boot.mount 34ms systemd-hostnamed.service 31ms systemd-sysctl.service 31ms logrotate.service 30ms systemd-tmpfiles-clean.service 29ms modprobe@sd_mod.service 28ms systemd-oomd.service 28ms systemd-fsck@dev-disk-by\x2dpartlabel-disk\x2dmain\x2dESP.service 27ms NetworkManager-wait-online.service 26ms fwupd-efi.service 25ms modprobe@fuse.service 25ms systemd-backlight@leds:tpacpi::kbd_backlight.service 24ms systemd-vconsole-setup.service 23ms plymouth-start.service 22ms systemd-pcrlock-secureboot-policy.service 21ms systemd-machined.service 20ms systemd-backlight@backlight:amdgpu_bl1.service 20ms systemd-boot-random-seed.service 20ms user-runtime-dir@1000.service 18ms systemd-journalctl.socket 17ms plymouth-read-write.service 16ms dev-hugepages.mount 15ms systemd-tmpfiles-setup-dev-early.service 15ms dev-mqueue.mount 15ms sys-kernel-debug.mount 14ms systemd-remount-fs.service 14ms logrotate-checkconf.service 14ms sys-kernel-tracing.mount 14ms \x2eswap.mount 13ms nscd.service 13ms systemd-user-sessions.service 13ms post-boot.service 13ms media.mount 12ms modprobe@configfs.service 12ms libvirt-guests.service 11ms run-wrappers.mount 11ms NetworkManager-dispatcher.service 10ms linger-users.service 10ms sleep-actions.service 10ms kmod-static-nodes.service 10ms cups.socket 9ms \x2eswap-swapfile.swap 8ms home.mount 7ms proc-sys-fs-binfmt_misc.mount 7ms sys-fs-fuse-connections.mount 6ms plymouth-tpm2-totp.service 6ms systemd-update-utmp.service 4ms sys-kernel-config.mount 4ms systemd-binfmt.service 3ms pcscd.socket 2ms podman.socket 1ms nix-daemon.socket 902us polkit-agent-helper.socket 686us systemd-repart.socket 625us systemd-bootctl.socket 565us systemd-mute-console.socket 541us systemd-coredump.socket 519us systemd-ask-password.socket 478us systemd-factory-reset.socket 360us systemd-pcrextend.socket 337us systemd-pcrlock.socket 334us systemd-creds.socket 144us systemd-udevd-varlink.socket 42us systemd-importd.socket 26us dbus.socket 23us avahi-daemon.socket 20us systemd-machined.socket 20us systemd-rfkill.socket 18us systemd-journald.socket 16us systemd-oomd.socket 15us libvirtd.socket 13us systemd-journald-dev-log.socket 13us systemd-journald-audit.socket 9us systemd-hostnamed.socket 8us systemd-udevd-control.socket 7us libvirtd-admin.socket 5us virtlogd.socket 5us virtlockd.socket 5us libvirtd-ro.socket 4us systemd-udevd-kernel.socket