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 ------------------------------------------------------------------------ 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(-)
