* [GIT PULL rcu/urgent] Adjust SRCU auto-expedite default delay
@ 2017-04-27 20:46 Paul E. McKenney
2017-04-28 6:21 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Paul E. McKenney @ 2017-04-27 20:46 UTC (permalink / raw)
To: mingo; +Cc: linux-kernel, efault
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(-)
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [GIT PULL rcu/urgent] Adjust SRCU auto-expedite default delay
2017-04-27 20:46 [GIT PULL rcu/urgent] Adjust SRCU auto-expedite default delay Paul E. McKenney
@ 2017-04-28 6:21 ` Ingo Molnar
0 siblings, 0 replies; 2+ messages in thread
From: Ingo Molnar @ 2017-04-28 6:21 UTC (permalink / raw)
To: Paul E. McKenney; +Cc: linux-kernel, efault, Thomas Gleixner, Peter Zijlstra
* Paul E. McKenney <paulmck@linux.vnet.ibm.com> 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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-04-28 6:21 ` Ingo Molnar
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