kernel-preempt-rt: (Vanilla kernel + realtime patch - Fedora patches) based on Fedora kernel spec file
For the record: using 5.6.14-200rt7.fc31 latency on 10 years old machine Dell Optiplex 755 (Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz + 4GB) under the following tests (lasting 5 days):
- linuxcnc latency-test
- hackbench -T 2 -l 1000000
- cyclictest -a -t -p 95 -N
- ping -f flood-to-another-host-over-100Mb-ethernet
- playing simultaneously two 24hour clips from yt on firefox
- Servo thread (1ms):
- Max Jitter: 21392 [ns]
- Base thread (25us):
- Max Jitter: 16900 [ns]
Machine booted with: "selinux=0 idle=poll transparent_hugepage=never audit=0 nmi_watchdog=0 nohz=on clocksource=tsc cpuidle.off=1 skew_tick=1 processor.max_cstate=0 isolcpus=1 rcunocbs=1 rcu_nocb_poll nohz_full=1 acpi_irq_nobalance" as per tuning guidelines and was tuned to use latency-performance profile
# tuned-adm active Current active profile: latency-performance
IRQ affinity was adjusted using irq-affinity.sh script.
For armhfp platform see kernel-rpi-rt.
# dnf copr enable dwrobel/kernel-rt # dnf install kernel_rt
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|Fedora 32||x86_64 (0)*||Fedora 32 (0 downloads)|
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