On Thu, Nov 29, 2012 at 08:37:50PM +0900, Namhyung Kim wrote:
> On Wed, 28 Nov 2012 14:52:43 +0100, Jiri Olsa wrote:
> > Adding diff command the flexibility to specify multiple data
> > files on input. If not input file is given the standard behaviour
> > stands and diff inspects 'perf.data' and 'perf.data.old' files.
> >
> > Also changing the processing and output display for data files.
> >
> > For 'perf diff A B' command:
> >
> >   - the current way is to iterate over B data and display
> >     A (baseline) data (symbol samples) only if found in B
> >
> >   - this patch iterates over A (baseline) data and display
> >     B data (symbol samples) only if found in A
> >
> > For 'perf diff A B C' command, the diff now iterates the
> > A (baseline) data and display B and C data (symbol samples)
> > only if they found in A (baseline)
> >
> > All other standard diff command computation features
> > (delta,ratio,wdiff) stays.
> 
> This is quite a large change and IMHO can be separated into 3 patches at
> least.

you should have seen this patch before ;-)

> 
>  1) change he->pairs from list to array

ok

>  2) introduce diff_data__fmt
>  3) convert to diff_data__fmt

will try ;)

thanks,
jirka
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