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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1812182/+subscriptions
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