Public bug reported: I'm attaching a perf profile.
ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: systemd 245.4-4ubuntu3.3 ProcVersionSignature: Ubuntu 5.4.0-54.60-lowlatency 5.4.65 Uname: Linux 5.4.0-54-lowlatency x86_64 ApportVersion: 2.20.11-0ubuntu27.12 Architecture: amd64 CasperMD5CheckResult: skip Date: Sun Nov 22 13:57:47 2020 InstallationDate: Installed on 2020-02-08 (287 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Acer Aspire A515-51G ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-54-lowlatency root=/dev/mapper/vgubuntu-root ro quiet splash resume=UUID=f0e63db4-d3af-4977-a82a-5a46a3c677ae lockdown=confidentiality intel_iommu=on iommu=pt vfio-pci.ids=10de:1d10 vt.handoff=7 SourcePackage: systemd SystemdDelta: [EXTENDED] /usr/lib/systemd/system/dnscrypt-proxy.service → /etc/systemd/system/dnscrypt-proxy.service.d/override.conf [EXTENDED] /usr/lib/systemd/system/rc-local.service → /usr/lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /usr/lib/systemd/system/user@.service → /usr/lib/systemd/system/user@.service.d/timeout.conf 3 overridden configuration files found. UpgradeStatus: Upgraded to focal on 2020-10-23 (29 days ago) dmi.bios.date: 01/03/2019 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V2.02 dmi.board.asset.tag: Type2 - Board Serial Number dmi.board.name: Charmander_KL dmi.board.vendor: KBL dmi.board.version: V2.02 dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V2.02 dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.02:bd01/03/2019:svnAcer:pnAspireA515-51G:pvrV2.02:rvnKBL:rnCharmander_KL:rvrV2.02:cvnAcer:ct10:cvrV2.02: dmi.product.family: Aspire 5 dmi.product.name: Aspire A515-51G dmi.product.sku: 0000000000000000 dmi.product.version: V2.02 dmi.sys.vendor: Acer mtime.conffile..etc.apport.crashdb.conf: 2020-05-15T09:41:35.683742 mtime.conffile..etc.systemd.sleep.conf: 2020-09-26T18:33:31.018002 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1905167 Title: htop shows 100% usage of systemd-udevd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1905167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs