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Memory Pre-Allocation Trick?
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
COM/DCOM et OLE Automation
Titre:
Memory Pre-Allocation Trick?
Divers
Thread ID:
00721182
Message ID:
00721182
Vues:
59
I have a VFP7 class with an empty string property. After instantiation, from 3 to 9 methods get called, and each concatenates 100-500 bytes in rapid succession, resulting in about a 5k stirng property when it's done. The caller consumes this string property before destroying the object.

Would it make sense to pre-allocate memory for the object by setting the string property to Space(8192), and on the first write set the property to the first string and then concatenate after that?

I am thinking that the object would run "faster" because the OS (or runtime) would not have to grow the stack space for the object as it runs. This is for a web app where I have potentially 60-70 objects going at any given second.

Thanks.
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