Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'sched-urgent-2024-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix a cpufreq related performance regression on certain systems, where
the CPU would remain at the lowest frequency, degrading performance
substantially"
* tag 'sched-urgent-2024-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix frequency selection for non-invariant case
+5
-1
+5
-1
kernel/sched/cpufreq_schedutil.c
+5
-1
kernel/sched/cpufreq_schedutil.c
···
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if (arch_scale_freq_invariant())
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return policy->cpuinfo.max_freq;
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-
return policy->cur;
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+
/*
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+
* Apply a 25% margin so that we select a higher frequency than
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+
* the current one before the CPU is fully busy:
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+
*/
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return policy->cur + (policy->cur >> 2);
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}
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/**