On 01/03/2023 11:47, Bart via fpc-devel wrote:
On Wed, Mar 1, 2023 at 11:33 AM Martin Frb via fpc-devel
<fpc-devel@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.
I know the video.
Eyeballing and alignment issues were among the causes. For the latter I
tried to see if codealign would have an effect. Though of course if it
had, it be a lucky strike.
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