Tested with 1.1ubuntu1.18.04.7~16.04.1: On the autopkgtest infrastructure u-u runs for 20s when all packages are installed from xenial-security but none from xenial-updates:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/amd64/u/unattended-upgrades/20181213_182038_2962e@/log.gz ... Starting unattended upgrades script Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial Packages that will be upgraded: 19.18user 1.17system 0:20.53elapsed 99%CPU (0avgtext+0avgdata 77720maxresident)k 0inputs+123512outputs (0major+38986minor)pagefaults 0swaps ... On a 2012 MacBook Air inside a KVM qemu vm autopkgtest runner it is ~8s: ... adt-2.log-Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial adt-2.log-Packages that will be upgraded: adt-2.log:7.64user 0.31system 0:08.00elapsed 99%CPU (0avgtext+0avgdata 76516maxresident)k .. This is basically the same speed as with 0.90ubuntu0.10. There is a 12% speed regression when testing in qemu with kvm on a 19.04 host: ... adt-1549534420.log-Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial adt-1549534420.log-Packages that will be upgraded: adt-1549534420.log:6.72user 0.30system 0:07.07elapsed 99%CPU (0avgtext+0avgdata 77812maxresident)k ... vs. .. adt-2.log-Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial adt-2.log-Packages that will be upgraded: adt-2.log:7.64user 0.31system 0:08.00elapsed 99%CPU (0avgtext+0avgdata 76516maxresident)k ... Or a 24% speedup with a smaller set of upgradable packages measured in two 16.04 lxc containers running on the same 19.04 development system: ii unattended-upgrades 0.90ubuntu0.10 all automatic installation of security upgrades # for i in $(seq 5); do time unattended-upgrade --dry-run; done real 0m4.326s user 0m4.245s sys 0m0.043s real 0m4.309s user 0m4.239s sys 0m0.070s ... # apt list --upgradable Listing... Done cloud-init/xenial-proposed 18.5-21-g8ee294d5-0ubuntu1~16.04.1 all [upgradable from: 18.4-0ubuntu1~16.04.2] kmod/xenial-proposed 22-1ubuntu5.2 amd64 [upgradable from: 22-1ubuntu5.1] libc-bin/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] libc6/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] libkmod2/xenial-proposed 22-1ubuntu5.2 amd64 [upgradable from: 22-1ubuntu5.1] locales/xenial-proposed 2.23-0ubuntu11 all [upgradable from: 2.23-0ubuntu10] multiarch-support/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] python-apt-common/xenial-proposed 1.1.0~beta1ubuntu0.16.04.3 all [upgradable from: 1.1.0~beta1ubuntu0.16.04.2] python3-apt/xenial-proposed 1.1.0~beta1ubuntu0.16.04.3 amd64 [upgradable from: 1.1.0~beta1ubuntu0.16.04.2] snapd/xenial-proposed 2.37.1 amd64 [upgradable from: 2.34.2] ubuntu-core-launcher/xenial-proposed 2.37.1 amd64 [upgradable from: 2.34.2] unattended-upgrades/xenial-proposed 1.1ubuntu1.18.04.7~16.04.1 all [upgradable from: 0.90ubuntu0.10] # vs. ii unattended-upgrades 1.1ubuntu1.18.04.7~16.04.1 all automatic installation of security upgrades # for i in $(seq 5); do time unattended-upgrade --dry-run; done real 0m3.269s user 0m3.194s sys 0m0.076s real 0m3.277s user 0m3.135s sys 0m0.115s ... root@x-uu-ref:~# apt list --upgradable Listing... Done cloud-init/xenial-proposed 18.5-21-g8ee294d5-0ubuntu1~16.04.1 all [upgradable from: 18.4-0ubuntu1~16.04.2] kmod/xenial-proposed 22-1ubuntu5.2 amd64 [upgradable from: 22-1ubuntu5.1] libc-bin/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] libc6/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] libkmod2/xenial-proposed 22-1ubuntu5.2 amd64 [upgradable from: 22-1ubuntu5.1] locales/xenial-proposed 2.23-0ubuntu11 all [upgradable from: 2.23-0ubuntu10] multiarch-support/xenial-proposed 2.23-0ubuntu11 amd64 [upgradable from: 2.23-0ubuntu10] python-apt-common/xenial-proposed 1.1.0~beta1ubuntu0.16.04.3 all [upgradable from: 1.1.0~beta1ubuntu0.16.04.2] snapd/xenial-proposed 2.37.1 amd64 [upgradable from: 2.34.2] ubuntu-core-launcher/xenial-proposed 2.37.1 amd64 [upgradable from: 2.34.2] root@x-uu-ref:~# ** Tags removed: verification-needed verification-needed-xenial ** Tags added: verification-done verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1396787 Title: checking trust of archives eats a lot of cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1396787/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
