Re: [v7 0/8] Reduce cross CPU IPI interference

From: Peter Zijlstra
Date: Wed Feb 01 2012 - 12:58:28 EST

On Wed, 2012-02-01 at 18:35 +0100, Peter Zijlstra wrote:
> On Sun, 2012-01-29 at 10:25 +0200, Gilad Ben-Yossef wrote:
> >
> > If this is of interest, I keep a list tracking global IPI and global
> > task schedulers sources in the core kernel here:
> >
> You can add synchronize_.*_expedited() to the list, it does its best to
> bash the entire machine in order to try and make RCU grace periods
> happen fast.

Also anything using stop_machine, such as module unload, cpu hot-unplug
and text_poke().
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