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VFP9.0 Slower than 8.0 ??
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De
06/09/2004 09:20:18
 
 
À
06/09/2004 09:10:16
Information générale
Forum:
Visual FoxPro
Catégorie:
Visual FoxPro Beta
Divers
Thread ID:
00939663
Message ID:
00939712
Vues:
19
Thanks very much Fabio. Interesting info.

Ciao


>
>>
>>Compare data elaboration in VFP8 with VFP7: VFP8 is slower.
>
>Hi Fabio. Can you expand on/explain further please?
>

>
>On VFP8 the allocation of the memory has been optimized for the construction of groups of objects.
>
>But whichever program executed in VFP8SP1 is slower of the 5-15% regarding VFP7SP1.
>
>This is repeated also in VFP9Beta,
>and I am sure that this slowing down will remain also in the release final of VFP9.
>
>I think does not depend on a rewrite of the code,
>but from the simple fact that the VFP VM become larger
>and therefore the VM code/data probability of having in the CPU' s cache diminishes.
>This is not true for VFP6 to VFP7 step because VFP7 VM is faster.
>
>Speedup the VFP VM is possible, and also a lot,
>but the VFP characteristics demand a remarkable effort of programming in order to make it.
>
>Fabio
In the End, we will remember not the words of our enemies, but the silence of our friends - Martin Luther King, Jr.
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