Re: [RFC PATCH 1/6] Convert the RCU tasklet into a softirq

[Ingo Molnar]

* Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:

> On Fri, Jun 22, 2007 at 12:00:15AM -0400, Steven Rostedt wrote:
> > I believe this was originally done by Dipankar Sarma. I pulled these
> > changes from the -rt kernel.
> > 
> > For better preformance, RCU should use a softirq instead of a
> > tasklet.
> 
> I was under the imporession we had merged this a while ago due to 
> tasklet bottlenecks on big machines.  Any reason why it has been 
> delayed so long?

i thought so too, up until a few weeks ago. I think i might have mixed 
it up mentally with the scheduler rebalancing tasklet: that was 
converted to softirqs on my request and made me forget about the RCU 
tasklet thing.

	Ingo
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