Re: [tip:perfcounters/core] perf record/report: Add call graph /call chain profiling

[Peter Zijlstra]

On Tue, 2009-06-16 at 04:57 +0200, Frederic Weisbecker wrote:
> > +struct ip_chain_event {
> > +     __u16 nr;
> 
> 
> 
> Is it needed to have the nr encoded in the ip_chain?
> We can already find it by doing kernel + user.

strictly speaking: hv+kernel+user
but yeah, we could possibly replace it with another context, guest
perhaps.

suggestions anyone?

> 
> > +     __u16 hv;
> > +     __u16 kernel;
> > +     __u16 user;
> > +     __u64 ips[];
> > +};

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