[fpc-devel] Curious about the effect of all the new optimizations....

Bart bartjunk64 at gmail.com
Wed Mar 1 11:47:13 CET 2023

On Wed, Mar 1, 2023 at 11:33 AM Martin Frb via fpc-devel
<fpc-devel at lists.freepascal.org> wrote:

> So for a while now fpc 3.3.1 receives new optimizations => which is
> great / big fan of it.
> And hence I thought, lets see how much of an impact they have. And in my
> test, they had none :(

Optimizations beyond O2 (or even O1) most of the times do not make a
difference for the average user.
There is much randomness in the performance of an application caused
by things you cannot control, which have more influence on the
performance of the application
I watched a video about this not so long ago (it was about
optimization levels in gcc), which explained all this, but I'm unable
to find that again and unanble to reproduce what was being said there.


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