Re: [PATCH] rcu: Advise most users not to enable RCU user mode

2012-10-10 Thread Paul E. McKenney
On Thu, Oct 11, 2012 at 01:48:28AM +0200, Frederic Weisbecker wrote: > Discourage distros from enabling CONFIG_RCU_USER_QS > because it brings overhead for no benefits yet. > > It's not a useful feature on its own until we can > fully run an adaptive tickless kernel. Queued, hopefully for 3.7,

[PATCH] rcu: Advise most users not to enable RCU user mode

2012-10-10 Thread Frederic Weisbecker
Discourage distros from enabling CONFIG_RCU_USER_QS because it brings overhead for no benefits yet. It's not a useful feature on its own until we can fully run an adaptive tickless kernel. Signed-off-by: Frederic Weisbecker --- init/Kconfig | 12 1 files changed, 12

[PATCH] rcu: Advise most users not to enable RCU user mode

2012-10-10 Thread Frederic Weisbecker
Discourage distros from enabling CONFIG_RCU_USER_QS because it brings overhead for no benefits yet. It's not a useful feature on its own until we can fully run an adaptive tickless kernel. Signed-off-by: Frederic Weisbecker fweis...@gmail.com --- init/Kconfig | 12 1 files

Re: [PATCH] rcu: Advise most users not to enable RCU user mode

2012-10-10 Thread Paul E. McKenney
On Thu, Oct 11, 2012 at 01:48:28AM +0200, Frederic Weisbecker wrote: Discourage distros from enabling CONFIG_RCU_USER_QS because it brings overhead for no benefits yet. It's not a useful feature on its own until we can fully run an adaptive tickless kernel. Queued, hopefully for 3.7, thank