Re: [RFC] perf: EBNF for event syntax

[Peter Zijlstra]

On Fri, 2011-03-25 at 21:35 +0800, Lin Ming wrote:
> > There was a suggestion a while back to make:
> > 
> >  -e ev1,ev2,ev3
> > 
> > create an event group with ev2 and ev3 siblings of ev1, and have
> > multiple -e instances create separate counters.
> > 
> > The problem is that its not backwards compatible, but something like
> > that would still be very nice to have.
> 
> Currently, it means a list of independent events, right?
> 
Right, and as said changing this would create some backward compat
problems so I'm not sure its the best proposal, just wanted to raise the
issue that such functionality would be nice.

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