Checking the Milliseconds

[Tom Glod]

I hear you Sean ..it is pretty interesting .... These are like gritty
details about the engine, and I love learning them.
I did not expect less than a microsecond / operation, thats for sure.
There are a few other operations I would like to test in this way.
thanks for reminding me about the detail millisecond, this will help with
accuracy.

More on this in about a 2 couple weeks time.
I am excited to bring something new to the LC developer community. :)

Cheers

Tom


On Wed, Apr 7, 2021 at 7:26 PM Sean Cole (Pi) via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Hi Tom
>
> It is really interesting to see the results from this though. Tried it on
> my various machines and got pretty much the same results as everyone else
> consistently. It's amazing to see that in the region of 3000 loops occur in
> the period of 1ms. which means we are perhaps getting 1 (lowish level) line
> every 0.0001ms. Obviously heftier calls will take longer but it's a good
> indicator.
>
> Here's a good check of accuracy (sorry for the formatting):
>
> local sMS
>
> on mouseUp
>    put the long millisec into sMS
>    send "checkTime" to me in 1 sec
> end mouseUp
>
> on checkTime
>    put the long millisec - sMS
> end checkTime
>
> // The long milliseconds gives you even more detail on the amount of time
> elapsed. The variance is quite something.
>
> Sean
>
> On Wed, 7 Apr 2021 at 23:14, Tom Glod via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
> > Excellent ... Yes the 1st one was usually the one that was the lowest for
> > me, for the reason you described.
> > But you also cleared up the mysterious big jumps,I too now get a
> consistent
> > result.
> > Thanks for chimming in
> >
> >
> > On Wed, Apr 7, 2021 at 3:59 PM Niggemann, Bernd via use-livecode <
> > use-livecode at lists.runrev.com> wrote:
> >
> > > I tried this and got pretty constant results except for maybe  the
> first
> > > ten iterations. I figured if you just jump in with the milliseconds you
> > > would not be at the "beginning" of the milliseconds and added a repeat
> > loop
> > > to mitigate that effect. Furthermore I appended the result to a
> variable.
> > >
> > > -------------------------------------------
> > > local last_known_millisecond
> > > local queries = 0
> > > local report
> > > local longSecs, tMs
> > >
> > > on mouseUp
> > >    lock screen
> > >    put empty into report
> > >
> > >    --let it start at a flip of the ms
> > >    repeat
> > >       put the milliseconds into tMs
> > >       if char -1 of tMs is 0 then
> > >          exit repeat
> > >       end if
> > >    end repeat
> > >
> > >    repeat 1000 times
> > >       put 0 into queries
> > >       put the long seconds into longSecs
> > >       put the milliseconds into last_known_millisecond
> > >       repeat forever
> > >          add 1 to queries
> > >          if the milliseconds = last_known_millisecond  then
> > >             next repeat
> > >          else
> > >             exit repeat
> > >          end if
> > >       end repeat
> > >       put queries && (the long seconds - longSecs) * 1000  & cr after
> > > report
> > >    end repeat
> > >
> > >    unlock screen
> > >    put report
> > > end mouseUp
> > > --------------------------
> > > _______________________________________________
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> >
> >
> > --
> > Tom Glod
> > Founder & Developer
> > MakeShyft R.D.A (www.makeshyft.com)
> > Mobile:647.562.9411
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-- 
Tom Glod
Founder & Developer
MakeShyft R.D.A (www.makeshyft.com)
Mobile:647.562.9411