Re: [rcu] e552592e038: +39.2% vm-scalability.throughput, +19.7% turbostat.Pkg_W

2014-06-25 Thread Paul E. McKenney
On Thu, Jun 26, 2014 at 09:42:19AM +0800, Fengguang Wu wrote: > Hi Paul, > > We noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git > urgent.2014.06.21a > commit e552592e0383bc72e35eb21a9fabd84ad873cff1 ("rcu: Reduce overhead of > cond_resched()

[rcu] e552592e038: +39.2% vm-scalability.throughput, +19.7% turbostat.Pkg_W

2014-06-25 Thread Fengguang Wu
Hi Paul, We noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git urgent.2014.06.21a commit e552592e0383bc72e35eb21a9fabd84ad873cff1 ("rcu: Reduce overhead of cond_resched() checks for RCU") Test case: brickland3/vm-scalability/300s-anon-w-seq-mt-64G

[rcu] e552592e038: +39.2% vm-scalability.throughput, +19.7% turbostat.Pkg_W

2014-06-25 Thread Fengguang Wu
Hi Paul, We noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git urgent.2014.06.21a commit e552592e0383bc72e35eb21a9fabd84ad873cff1 (rcu: Reduce overhead of cond_resched() checks for RCU) Test case: brickland3/vm-scalability/300s-anon-w-seq-mt-64G

Re: [rcu] e552592e038: +39.2% vm-scalability.throughput, +19.7% turbostat.Pkg_W

2014-06-25 Thread Paul E. McKenney
On Thu, Jun 26, 2014 at 09:42:19AM +0800, Fengguang Wu wrote: Hi Paul, We noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git urgent.2014.06.21a commit e552592e0383bc72e35eb21a9fabd84ad873cff1 (rcu: Reduce overhead of cond_resched() checks