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Date: Mon, 14 Jul 2014 03:06:04 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com, sbw@....edu, linux-rt-users@...r.kernel.org Subject: [PATCH RFC tip/core/rcu 0/2] NOCB kthread economization patches Hello! This series provides a couple of patches that reduce the number of rcuo kthreads in cases where nr_cpu_ids is larger than the actual number of online CPUs. 1. Preparation patch that rationalizes RCU's creation of early-boot kthreads. 2. Instead of creation rcuo kthreads for each possible CPU, create them only for those CPUs that have come online at least once since boot. Thanx, Paul ------------------------------------------------------------------------ b/kernel/rcu/tree.c | 8 ++- b/kernel/rcu/tree.h | 5 +- b/kernel/rcu/tree_plugin.h | 105 ++++++++++++++++++++++++++++++++++++--------- 3 files changed, 95 insertions(+), 23 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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