Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

2018-09-22 Thread Paul E. McKenney
On Sat, Sep 22, 2018 at 07:38:05PM -0400, Joel Fernandes wrote: > On Sat, Sep 22, 2018 at 9:46 AM Paul E. McKenney > wrote: > [...] > > > I have a few more as well, I'll send them out soon. > > > > I do have on my list to update this document based on the changes in > > -rcu, which among other th

Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

2018-09-22 Thread Joel Fernandes
On Sat, Sep 22, 2018 at 9:46 AM Paul E. McKenney wrote: [...] > > I have a few more as well, I'll send them out soon. > > I do have on my list to update this document based on the changes in > -rcu, which among other things eliminate the rcu_dynticks structure > and make it so there is only one r

Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

2018-09-22 Thread Paul E. McKenney
On Sat, Sep 22, 2018 at 04:10:51AM -0400, Joel Fernandes wrote: > On Fri, Sep 21, 2018 at 9:14 PM Paul E. McKenney > wrote: > > > > On Fri, Sep 21, 2018 at 06:31:53PM -0400, Joel Fernandes (Google) wrote: > > > RCU Data-Structures document describes a trick to test RCU with small > > > number of

Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

2018-09-22 Thread Joel Fernandes
On Fri, Sep 21, 2018 at 9:14 PM Paul E. McKenney wrote: > > On Fri, Sep 21, 2018 at 06:31:53PM -0400, Joel Fernandes (Google) wrote: > > RCU Data-Structures document describes a trick to test RCU with small > > number of CPUs but with a larger tree. It wasn't immediately clear how > > the document

Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

2018-09-21 Thread Paul E. McKenney
On Fri, Sep 21, 2018 at 06:31:53PM -0400, Joel Fernandes (Google) wrote: > RCU Data-Structures document describes a trick to test RCU with small > number of CPUs but with a larger tree. It wasn't immediately clear how > the document arrived at 16 CPUs which also requires setting the > FANOUT_LEAF t