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SubjectRe: 'perf upgrade' (was: Re: [PATCH v9 00/11] Add support for JSON event files.)
On Fri, Apr 17, 2015 at 05:31:26PM +0200, Jiri Olsa wrote:
> On Wed, Apr 15, 2015 at 01:50:42PM -0700, Sukadev Bhattiprolu wrote:
>
> SNIP
>
> > |
> > | - to blindly follow some poorly constructed vendor format with no
> > | high level structure, that IMHO didn't work very well when OProfile
> > | was written, and misrepresenting it as 'symbolic event names'.
> > |
> > | Take a look at:
> > |
> > | https://download.01.org/perfmon/HSW/Haswell_core_V17.json
> > |
> > | and weep.
> >
> > Evil vendor formats, but to be fair, here is what _we_ have today:
> >
> > perf stat -e r10068,r20036,r40060,r40ac sleep 1
>
> hum, you could also use the 'cpu/event=.../' syntax right?

That's even worse -- same hex numbers, just more redundancy.

All the other profilers support symbolic names, which is what
users want.

-Andi

--
ak@linux.intel.com -- Speaking for myself only


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