On 2019-03-20 11:12:10 [-0700], Paul E. McKenney wrote:
> We could name it something like "use_softirq" and initialize it to true.
> I am OK either way.
I had to add one hunk to get it compiled. It worked then. Let me swap
the logic as you suggested and then I repost the whole thing. This will
On Wed, Mar 20, 2019 at 06:59:52PM +0100, Sebastian Andrzej Siewior wrote:
> On 2019-03-20 10:30:01 [-0700], Paul E. McKenney wrote:
> > On Wed, Mar 20, 2019 at 05:35:32PM +0100, Sebastian Andrzej Siewior wrote:
> > > On 2019-03-20 09:15:00 [-0700], Paul E. McKenney wrote:
> > > > I am considering
On 2019-03-20 10:30:01 [-0700], Paul E. McKenney wrote:
> On Wed, Mar 20, 2019 at 05:35:32PM +0100, Sebastian Andrzej Siewior wrote:
> > On 2019-03-20 09:15:00 [-0700], Paul E. McKenney wrote:
> > > I am considering making it a module_param() to avoid namespace pollution,
> > > as it would become
On Wed, Mar 20, 2019 at 05:35:32PM +0100, Sebastian Andrzej Siewior wrote:
> On 2019-03-20 09:15:00 [-0700], Paul E. McKenney wrote:
> > I am considering making it a module_param() to avoid namespace pollution,
> > as it would become something like rcutree.nosoftirq.
> >
> > Thoughts?
>
> nope,
On 2019-03-20 09:15:00 [-0700], Paul E. McKenney wrote:
> I am considering making it a module_param() to avoid namespace pollution,
> as it would become something like rcutree.nosoftirq.
>
> Thoughts?
nope, perfect.
> Thanx, Paul
Sebastian
On Wed, Mar 20, 2019 at 05:05:48PM +0100, Sebastian Andrzej Siewior wrote:
> On 2019-03-20 08:44:40 [-0700], Paul E. McKenney wrote:
> >
> > And it does seem to work better. I will give it more intense testing
> > later on, but in the meantime I have merged this change into your
> > earlier
On 2019-03-20 08:44:40 [-0700], Paul E. McKenney wrote:
>
> And it does seem to work better. I will give it more intense testing
> later on, but in the meantime I have merged this change into your
> earlier patch.
thanks.
> We will see whether or not I am able summon up the courage to push it
On Wed, Mar 20, 2019 at 08:21:46AM -0700, Paul E. McKenney wrote:
> On Wed, Mar 20, 2019 at 12:32:19PM +0100, Sebastian Andrzej Siewior wrote:
> > On 2019-03-19 12:44:19 [+0100], To Paul E. McKenney wrote:
> > > diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> > > index
On Wed, Mar 20, 2019 at 12:32:19PM +0100, Sebastian Andrzej Siewior wrote:
> On 2019-03-19 12:44:19 [+0100], To Paul E. McKenney wrote:
> > diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> > index 0f31b79eb6761..0a719f726e149 100644
> > --- a/kernel/rcu/tree.c
> > +++ b/kernel/rcu/tree.c
> …
>
On 2019-03-19 12:44:19 [+0100], To Paul E. McKenney wrote:
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index 0f31b79eb6761..0a719f726e149 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
…
> +/*
> + * Spawn per-CPU RCU core processing kthreads.
> + */
> +static int __init
On 2019-03-19 09:50:07 [-0700], Paul E. McKenney wrote:
> Besides, it looks very weird for me to have two Signed-off-by lines. ;-)
See commit 602cae04c4864 ("perf/x86/intel: Delay memory deallocation
until x86_pmu_dead_cpu()")
> In theory, the trace_rcu_utilization() should be added, just like
On Tue, Mar 19, 2019 at 05:24:31PM +0100, Sebastian Andrzej Siewior wrote:
> On 2019-03-19 08:59:23 [-0700], Paul E. McKenney wrote:
> > I doubt that there is any code left from my original, so I set you as
> > author.
>
> I always forward ported it the patch over the years. So if it is no
>
On 2019-03-19 08:59:23 [-0700], Paul E. McKenney wrote:
> I doubt that there is any code left from my original, so I set you as
> author.
I always forward ported it the patch over the years. So if it is no
longer what it was once so be it.
> I queued this and am starting tests without setting
On Tue, Mar 19, 2019 at 12:44:19PM +0100, Sebastian Andrzej Siewior wrote:
> From: "Paul E. McKenney"
>
> Running RCU out of softirq is a problem for some workloads that would
> like to manage RCU core processing independently of other softirq work,
> for example, setting kthread priority.
>
From: "Paul E. McKenney"
Running RCU out of softirq is a problem for some workloads that would
like to manage RCU core processing independently of other softirq work,
for example, setting kthread priority.
This commit therefore introduces the `rcunosoftirq' option which moves
the RCU core work
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