realtime-setup-2.5-9.fc45
completeDescription
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.
RPMs
2 files, 2 archessrc
riscv64
Logs
riscv64
Changelog
* Thu Jul 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.5-9 - Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild * Sat Jan 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.5-8 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild * Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.5-7 - Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild * Tue Feb 11 2025 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 2.5-6 - Add sysusers.d config file to allow rpm to create users/groups automatically * Wed Jan 29 2025 Clark Williams <williams@redhat.com> - 2.5-5 - Move realtime-entsk and kernel-is-rt to /usr/bin * Sat Jan 18 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.5-4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild * Tue Aug 06 2024 Clark Williams <williams@redhat.com> - 2.5-3 - remove runtime Require of kexec-tools * Wed Jul 31 2024 Clark Williams <williams@redhat.com> - 2.5-2 - fix date typo in changelog * Wed Jul 31 2024 Clark Williams <williams@redhat.com> - 2.5-1 - Add anocheck hardening flags - version bump * Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.4-4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild