Re: [GIT PULL rcu/urgent] Adjust SRCU auto-expedite default delay

From: Ingo Molnar
Date: Fri Apr 28 2017 - 02:21:15 EST



* Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote:

> Hello, Ingo,
>
> This series adds a small change to yesterday's pull request, namely
> changing the default value of the srcutree.exp_holdoff kernel boot
> parameter from 50 microseconds to 25 microseconds. This change completely
> eliminates the performance shortfall that Mike Galbraith observed.
> This commit is available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent
>
> for you to fetch changes up to b5fe223a4bd0217a657ff084e48752c367a8a55f:
>
> srcu: Adjust default auto-expediting holdoff (2017-04-27 08:35:24 -0700)
>
> ----------------------------------------------------------------
> Paul E. McKenney (1):
> srcu: Adjust default auto-expediting holdoff
>
> kernel/rcu/srcutree.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

Pulled, thanks a lot Paul!

Ingo