[llvm-dev] LLD performance w.r.t. local symbols (and --build-id)

[Rafael Espíndola via llvm-dev]

On 16 March 2016 at 09:26, George Rimar <grimar at accesssoftek.com> wrote:
>> Agreed. Unless your code changes algorithm, you don't need to worry too
>> much about performance fluctuations caused by that change. This may vary on
>> compiler, compiler > version, code around your change, and test cases.
>
>
> 3% is a quite visible difference. I guess that testing was performed using
> single compiler, hardware and so on. Why that change is observed ? Was it an
> 3% fluctuation ?

I think it is just because the continue is really uncommon, but I
haven't actually profiled it. That is, I run "perf stat", not "perf
record".

Cheers,
Rafael