[Feature] P9: Power9 CPU tuned libraries
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
Won't Fix
|
Medium
|
Canonical Foundations Team | ||
glibc (Ubuntu) |
Won't Fix
|
Medium
|
Adam Conrad |
Bug Description
glibc provides minimal support for POWER9 since version 2.23.
glibc 2.25 is the first version to provide POWER9 optimizations via
STT_GNU_IFUNC. The optimizations are enabled by default and will be disabled
when using --disable-
not the same thing as used by Debian).
However, this feature request is proposing to provide a second glibc build,
configured with --with-cpu=power9 and co-installed with the default glibc
build, but under $(LIBDIR)/power9.
Other distros usually install these under /lib64/power9. Ubuntu may need to
use a different directory due to supporting Debian's multiarch.
The support for this is known to work upstream since glibc 2.23.
So, I think this is just pending changes in the distro build system.
tags: | added: architecture-ppc64le bugnameltc-145024 severity-low targetmilestone-inin1710 |
Changed in ubuntu: | |
assignee: | nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) |
affects: | ubuntu → glibc (Ubuntu) |
Changed in ubuntu-power-systems: | |
assignee: | nobody → Canonical Foundations Team (canonical-foundations) |
Changed in ubuntu-power-systems: | |
importance: | Undecided → Low |
tags: |
added: severity-medium removed: severity-low |
Changed in glibc (Ubuntu): | |
importance: | Undecided → Low |
assignee: | Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Adam Conrad (adconrad) |
tags: | added: triage-g |
Changed in glibc (Ubuntu): | |
importance: | Low → Medium |
Changed in ubuntu-power-systems: | |
importance: | Low → Medium |
tags: |
added: triage-a removed: triage-g |
Changed in ubuntu-power-systems: | |
status: | New → Won't Fix |
Changed in glibc (Ubuntu): | |
status: | New → Won't Fix |
Due to the fact that this ticket is tagged with 'severity-low' does it mean the 'Power9 CPU tuned libraries' can be included with 18.04 (rather than with 17.10)?