@phil As I said above for me it mostly was "I'm sure some change was expected, but so much?".
It has various benefits as gladly outlined by Dimitri, fixing many issues, but coming at a price tag. Seeing how big the price tag is for small size, high density cases I consider it potentially too much for some. As I said in my report "This is a devel release so this is the perfect time to be making these changes but we are noticing some changes that were not expected." so a way forward IMHO would be: 1. We leave mantic as is 2. We certainly need a release notes entry that explains the pros/cons that led to the decision 3. kernel can continue to optimize this case (see all the discussions/suggestions above already) 4. towards 24.04 4a) if this is received well, keep it 4b) if our decision was good, but not accounting for too many use-cases that we can't fix otherwise reconsider having a reduced kernel in 24.04 That would mostly an ask to the kernel team (but needs CPC to ensure it is correct e.g. in making it clear which images change due to that and which won't as they were already based on -generic). Phil/Xnox - what do you think about that approach? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2032933 Title: Mantic (23.10) minimal images increase in memory consumption, port usage and processes running Status in cloud-images: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: The Mantic (Ubuntu 23.10) download/qcow2 images available @ https://cloud-images.ubuntu.com/minimal/ are undergoing some big changes prior to 23.10 release in October. This is a devel release so this is the perfect time to be making these changes but we are noticing some changes that were not expected. This bug is to track the unexpected changes and discuss/resolve these. The changes that have been made to mantic minimal: * Move to the linux-generic kernel from the linux-kvm kernel * This also involved removal of the virtio-blk driver, which is the default for QEMU and OpenStack, but this is being restored in an upcoming 6.5 mantic kernel and is being trakced @ https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2030745 * Move to using minimal-cloud seed - see https://ubuntu-archive-team.ubuntu.com/seeds/ubuntu.mantic/cloud-minimal * No longer installing Recommends packages * This is during image build only and will not affect any subsequent package installs * No initramfs fallback for boot - only initramfsless boot The latest mantic minimal images are available @ http://cloud- images.ubuntu.com/minimal/daily/mantic/ and are also available in the public clouds. A package name manifest diff can be seen @ https://pastebin.ubuntu.com/p/rRd6STnNmK/ We have had reports of higher memory usage on an idle system, higher number of ports open on an idle system and higher number of process running on a idle system. To help with debugging I have built and uploaded the following images and package manifests to https://people.canonical.com/~philroche/20230824-manticl-minimal- LP2032933/ * 20230618-before-kernel-change-before-seed-change-mantic-minimal-cloudimg-amd64 * Before kernel change and before seed change * 20230824-after-kernel-change-before-seed-change-mantic-minimal-cloudimg-amd64 * After kernel change and before seed change * 20230821.1-after-kernel-change-after-seed-change-mantic-minimal-cloudimg-amd64 * After kernel change and after seed change To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/2032933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
