Messages in this thread | | | Date | Thu, 5 Nov 2020 15:00:40 -0800 | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 0/2] smp_call_function updates for v5.11 |
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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(-)
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