Hello! This series prevents /proc/cpuinfo from piling up quite so many redundant IPIs, and also avoids IPIing idle CPUs.
1. Avoid cpuinfo-induced IPI pileups.
2. Avoid cpuinfo-induced IPIing of idle CPUs.
Thanx, Paul
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arch/x86/kernel/cpu/aperfmperf.c | 16 +++++++++++++++-
include/linux/rcutiny.h | 2 ++
include/linux/rcutree.h | 1 +
kernel/rcu/tree.c | 8 ++++++++
4 files changed, 26 insertions(+), 1 deletion(-)
