Re: [PATCH tip/core/rcu 0/21] Contention reduction for v4.18

2018-05-14 Thread Paul E. McKenney
On Tue, May 15, 2018 at 08:21:20AM +1000, Nicholas Piggin wrote: > On Mon, 14 May 2018 09:09:07 -0700 > "Paul E. McKenney" wrote: > > > On Mon, May 14, 2018 at 04:42:33PM +1000, Nicholas Piggin wrote: > > > On Sun, 22 Apr 2018 20:02:58 -0700 > > > "Paul E. McKenney" wrote: > > > > > > > Hello

Re: [PATCH tip/core/rcu 0/21] Contention reduction for v4.18

2018-05-14 Thread Nicholas Piggin
On Mon, 14 May 2018 09:09:07 -0700 "Paul E. McKenney" wrote: > On Mon, May 14, 2018 at 04:42:33PM +1000, Nicholas Piggin wrote: > > On Sun, 22 Apr 2018 20:02:58 -0700 > > "Paul E. McKenney" wrote: > > > > > Hello! > > > > > > This series reduces lock contention on the root rcu_node > > > str

Re: [PATCH tip/core/rcu 0/21] Contention reduction for v4.18

2018-05-14 Thread Paul E. McKenney
On Mon, May 14, 2018 at 04:42:33PM +1000, Nicholas Piggin wrote: > On Sun, 22 Apr 2018 20:02:58 -0700 > "Paul E. McKenney" wrote: > > > Hello! > > > > This series reduces lock contention on the root rcu_node structure, > > and is also the first precursor to TBD changes to consolidate the > > thr

Re: [PATCH tip/core/rcu 0/21] Contention reduction for v4.18

2018-05-13 Thread Nicholas Piggin
On Sun, 22 Apr 2018 20:02:58 -0700 "Paul E. McKenney" wrote: > Hello! > > This series reduces lock contention on the root rcu_node structure, > and is also the first precursor to TBD changes to consolidate the > three RCU flavors (RCU-bh, RCU-preempt, and RCU-sched) into one. Hi Paul, I've bee

[PATCH tip/core/rcu 0/21] Contention reduction for v4.18

2018-04-22 Thread Paul E. McKenney
Hello! This series reduces lock contention on the root rcu_node structure, and is also the first precursor to TBD changes to consolidate the three RCU flavors (RCU-bh, RCU-preempt, and RCU-sched) into one. 1. Improve non-root rcu_cbs_completed() accuracy, thus reducing the need to ac