realtime-setup-2.5-1.el9 RPM for s390x

From AlmaLinux 9.5 devel for s390x

Configure details useful for low-latency environments.

Installation of this package results in:
  - creation of a realtime group
  - adds realtime limits configuration for PAM
  - adds udev specific rules for threaded irqs and /dev/rtc access
  - adds /usr/bin/slub_cpu_partial_off to turn off cpu_partials in SLUB
  - adds net-socket timestamp static key daemon (realtime-entsk)

The slub_cpu_partial_off script is used to turn off the SLUB slab allocator's
use of cpu-partials, which has been known to create latency-spikes.

The realtime-entsk program is a workaround for latency spikes caused when the
network stack enables hardware timestamping and activates a static key. The
realtime-entsk progam is activated by the systemd service included and merely
enables the timestamp static key and pauses, effectively activating the static
key and never exiting, so no deactivation/activation sequences will be seen.

Neither the slub script or realtime-entsk are active by default.

Provides

• realtime-setup
• config(realtime-setup)
• realtime-setup(s390-64)

Requires

• /bin/sh
• /bin/sh
• /usr/bin/bash
• config(realtime-setup) = 2.5-1.el9
• kexec-tools
• libc.so.6()(64bit)
• libc.so.6(GLIBC_2.2)(64bit)
• libc.so.6(GLIBC_2.34)(64bit)
• libc.so.6(GLIBC_2.4)(64bit)
• pam
• rpmlib(CompressedFileNames) <= 3.0.4-1
• rpmlib(FileDigests) <= 4.6.0-1
• rpmlib(PayloadFilesHavePrefix) <= 4.0-1
• rpmlib(PayloadIsZstd) <= 5.4.18-1
• rtld(GNU_HASH)
• systemd
• tuna
• tuned
• tuned-profiles-realtime

License

GPLv2

Changelog

* Tue Aug 13 2024 Clark Williams <williams@redhat.com> - 2.5-1
  - remove strip of realtime-entsk and generate debuginfo
  - ensure all files have valid SPDX license identifiers
  - remove Red Hat Makefile targets and specfile
  - Makefile cleanups and added .gitignore
  - drop the 'v' in the version string for the tarball
  - Makefile: add options for passing annocheck
  - Bump version to 2.5
  Resolves: RHEL-30179

Files

/etc/security/limits.d/realtime.conf
/etc/sysconfig/realtime-setup
/etc/udev/rules.d/99-rhel-rt.rules
/usr/bin/realtime-setup
/usr/bin/slub_cpu_partial_off
/usr/lib/.build-id
/usr/lib/.build-id/ea
/usr/lib/.build-id/ea/9541986fb487c73fbe2f43d71d99b1fda594e3
/usr/lib/systemd/system/realtime-entsk.service
/usr/lib/systemd/system/realtime-setup.service
/usr/sbin/kernel-is-rt
/usr/sbin/realtime-entsk
/usr/share/licenses/realtime-setup
/usr/share/licenses/realtime-setup/gpl-2.0.txt

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Fabrice Bellet, Fri Nov 15 08:55:16 2024