Public bug reported: Problem description:
During our Linux distribution performance regression testing, we found *significant* performance degradations on Ubuntu 16.04.5 LTS compared to other major Linux distributions on s390x when running SPECint2017. Some SPECint2017 micro-benchmarks show a performance degradation of 40%. Hardware environment: IBM z14, LPAR 1 IFL, SMT on 4GiB memory Software environment: Ubuntu 16.04.5 LTS SPECint2017 Analysis: We are currently in the progress of analyzing the problem and will get back to this bug as soon as we have more insights. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Skipper Bug Screeners (skipper-screen-team) Status: New ** Tags: architecture-s39064 bugnameltc-174800 severity-high targetmilestone-inin--- ** Tags added: architecture-s39064 bugnameltc-174800 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1812182 Title: Performance degradation with SPECint2017 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1812182/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs