Re: [PATCH 6/9] perf sort: Add 'addr' sort key

[Namhyung Kim]

On Mon, 1 Apr 2013 22:40:23 +0200, Jiri Olsa wrote:
> On Mon, Apr 01, 2013 at 08:35:22PM +0900, Namhyung Kim wrote:
>> From: Namhyung Kim <namhyung.kim@xxxxxxx>
>> 
>> New addr sort key provides a way to sort the entries by the symbol
>> addresses.  It can be helpful to figure out symbol resolution problem
>> when a dso cannot do it properly as well as finding hotpath in a dso
>> and/or a function.
>
> maybe it's just the recent mem profiling patches, but wouldn't
> it be better to use 'ip' instead of 'addr'?
>
> also it's following code getting the data:
> ...
>         if (sample_type & PERF_SAMPLE_IP)
>                 data->ip = perf_instruction_pointer(regs);
> ...
>
> same for the "perf sort: Add 'addr_to/from' sort key" patch

I'm not sure I understand what you mean exactly.

I used hist_entry->ip but it was set by al->addr which was converted
from the original sample ip to a relative ip by map->map_ip().

I can change it to use ->unmap_ip() before printing.  Is that your
concern?

And it seems that addr in branch info is original ip, Stephane?

Thanks,
Namhyung
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/