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)
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https://bugs.launchpad.net/bugs/1812182
Title:
Performance degradation with SPECint2017
Status in linux package in Ubuntu:
New
Bug description:
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.
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1812182/+subscriptions
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