I'm not aware of any performance issues in those parts of apt, and spent a considerable time optimizing it.
You probably want to strace or gdb apt when it's hanging and figure out where the issue is, because there's nothing that can be done here by anyone else so far. ** Changed in: apt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1875190 Title: Apt update takes around a full minute to read state information when I run it for the first time since boot even though there are no updates available. Status in apt package in Ubuntu: Incomplete Bug description: When I ran "sudo apt update && sudo apt dist-upgrade", apt hit all the repositories. However, when it was reading state information, that process took a full minute even though there were no new updates. This is too slow, even though the subsequent time I ran the command, it was much faster. No, this was not the first time I ever ran the command on the current install, as I ran it the day before without reinstalling Ubuntu, on Ubuntu 20.04, and the process took less than 15 seconds. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: apt 2.0.2 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Apr 26 11:42:21 2020 InstallationDate: Installed on 2020-04-25 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: apt UpgradeStatus: No upgrade log present (probably fresh install) --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-04-25 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) Package: apt 2.0.2 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Tags: focal Uname: Linux 5.4.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1875190/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp