On Sat, Oct 6, 2012 at 6:13 PM, Andi Kleen wrote:
> Jan Hubicka writes:
>>
>> I think it is useful feature, yes (and was in my TODO list for quite some
>> time). Unlike edge profiles, these profiles should be also more independent
>> of
>> source code/configuration changes.
>
> It would be good
On Sat, Oct 6, 2012 at 10:55 AM, Jan Hubicka wrote:
>> Hi,
>>
>> This patch implements the fine-graind AutoFDO optimizations for GCC.
>> It uses linux perf to collect sample profiles, and uses debug info to
>> represent the profile. In GCC, it uses the profile to annotate CFG to
>> drive FDO. This
Jan Hubicka writes:
>
> I think it is useful feature, yes (and was in my TODO list for quite some
> time). Unlike edge profiles, these profiles should be also more independent of
> source code/configuration changes.
It would be good to look at the tool, but:
- Does it use the perf LBR support to
> Hi,
>
> This patch implements the fine-graind AutoFDO optimizations for GCC.
> It uses linux perf to collect sample profiles, and uses debug info to
> represent the profile. In GCC, it uses the profile to annotate CFG to
> drive FDO. This can bring 50% to 110% of the speedup derived by
> traditi
thanks. That will be helpful.
David
On Fri, Oct 5, 2012 at 2:09 PM, Dehao Chen wrote:
> Sure, I'll add a detailed documentation in a gcc wiki page.
>
> Dehao
>
> On Fri, Oct 5, 2012 at 2:01 PM, Xinliang David Li wrote:
>> Dehao, the file auto-profile.c has some high level description of
>> aFD
Dehao Chen writes:
>
> If people in up-stream find this feature interesting, I'll spend some
> time to port this to trunk and try to opensource the tool to generate
> profile data file.
I find it interesting and would like to see the tool and a trunk version.
Thanks,
-Andi
--
a...@linux.intel.
