Performance

[René Micout]

Thank you very much Jim !

Le 20 juin 2010 à 13:18, Jim Ault a écrit :

> In this case I would use an array
> or custom properties.  Much faster by far.
> 
> --variable array
> add one to vgCpuFlux[ vpNumFlux ]
> 
> 
> --custom property ( a trickier technique, but more powerful )
> 
>   get the vgCpuFlux[ vpNumFlux ] of this stack +1
>   set the vgCpuFlux[ vpNumFlux ] of this stack to IT
> 
> --or store on each card
>   get the vgCpuFlux[ vpNumFlux ] of this CARD +1
>   set the vgCpuFlux[ vpNumFlux ] of this CARD to IT
> 
> ---------------------------------------------------------
> The array method takes 1 tick to do 10,000 times
>   put "4" into vpNumFlux
>   put the ticks into startt
>   repeat 10000 times
>      add one to vgCpuFlux[ vpNumFlux ]
>   end repeat
>   get the ticks - startt
>   get IT & cr & vgCpuFlux[ vpNumFlux ]
>   answer IT -- => 1   yep only one tick
> 
> 
> The custom property method takes 14 ticks to do
>   put "4" into vpNumFlux
>   put the ticks into startt
>   repeat 10000 times
>       get the vgCpuFlux[ vpNumFlux ] of this stack + 1
>      set the vgCpuFlux[ vpNumFlux ] of this stack to IT
>   end repeat
>   get the ticks - startt
>   get IT & cr & the vgCpuFlux[ vpNumFlux ] of this stack
>   answer IT -- => 14 ticks
> 
> The 'do' command should not be used for simply adding numbers such as a cross-tabulation technique like you are employing.
> Hope this helps.
> 
> 
> On Jun 20, 2010, at 3:38 AM, René Micout wrote:
> 
>> Thank you Mark,
>> In my project I use lot of "do" command...
>> For you, is that (the number of flux (flows) is 5) :
>> 
>> put "add 1 to vgCompteurFlux"& vpNuméroduFlux into vxA ; do vxA
>> 
>> faster or slower than :
>> 
>> switch vpNuméroduFlux
>> case 1 ; add 1 to vgCompteurFlux1 ; break
>> case 2 ; add 1 to vgCompteurFlux2 ; break
>> case 3 ; add 1 to vgCompteurFlux3 ; break
>> case 4 ; add 1 to vgCompteurFlux4 ; break
>> case 5 ; add 1 to vgCompteurFlux5 ; break..
>> end switch
>> 
>> You can answer to me : make a test ;-)... But have you ever had this choice to make ?
>> 
> 
> Jim Ault
> Las Vegas
> 
> 
> 
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