Re: [PHP-DEV] Re: str_repeat performance
maybe you'll find
$t=microtime(true) - $startTime;
var_dump($t,number_format($t,10));
interesting, https://3v4l.org/Ejia3
On Sat, 10 Sept 2022 at 17:11, Eugene Sidelnyk wrote:
> Oh, yes. Sorry for that.
>
> Thanks for pointing out.
>
> On Sat, Sep 10, 2022 at 3:23 PM Christoph M. Becker
> wrote:
>
> > On 10.09.2022 at 14:19, Eugene Sidelnyk wrote:
> >
> > > I have noted some strange points about `str_repeat` performance. It
> looks
> > > like the lesser `$times` argument is, the bigger is execution time
> (only
> > if
> > > we consider big numbers).
> > >
> > > For example, `str_repeat('%d ', 12500);` is a lot slower than
> > > `str_repeat('%d ', 125)`.
> > >
> > > First case (slow one):
> > > https://3v4l.org/ZAoGi
> > >
> > > Second case (fast one):
> > > https://3v4l.org/YIdQM
> >
> > It seems you have misinterpreted the results. 4.792213439941406E-5 is
> > certainly much smaller than 0.013129949569702148, for instance.
> >
> > --
> > Christoph M. Becker
> >
> >
>
[PHP-DEV] Re: str_repeat performance
Oh, yes. Sorry for that.
Thanks for pointing out.
On Sat, Sep 10, 2022 at 3:23 PM Christoph M. Becker
wrote:
> On 10.09.2022 at 14:19, Eugene Sidelnyk wrote:
>
> > I have noted some strange points about `str_repeat` performance. It looks
> > like the lesser `$times` argument is, the bigger is execution time (only
> if
> > we consider big numbers).
> >
> > For example, `str_repeat('%d ', 12500);` is a lot slower than
> > `str_repeat('%d ', 125)`.
> >
> > First case (slow one):
> > https://3v4l.org/ZAoGi
> >
> > Second case (fast one):
> > https://3v4l.org/YIdQM
>
> It seems you have misinterpreted the results. 4.792213439941406E-5 is
> certainly much smaller than 0.013129949569702148, for instance.
>
> --
> Christoph M. Becker
>
>
[PHP-DEV] Re: str_repeat performance
On 10.09.2022 at 14:19, Eugene Sidelnyk wrote:
> I have noted some strange points about `str_repeat` performance. It looks
> like the lesser `$times` argument is, the bigger is execution time (only if
> we consider big numbers).
>
> For example, `str_repeat('%d ', 12500);` is a lot slower than
> `str_repeat('%d ', 125)`.
>
> First case (slow one):
> https://3v4l.org/ZAoGi
>
> Second case (fast one):
> https://3v4l.org/YIdQM
It seems you have misinterpreted the results. 4.792213439941406E-5 is
certainly much smaller than 0.013129949569702148, for instance.
--
Christoph M. Becker
--
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