Author: Thomas McBurney
Date: 05:47:37 02/13/04
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> >>Generally the data that is the same size as the cpu registers is the most >>efficient. So on a 32-bit machine, 32-bit variables should be the fastest to >>work with. However, that is not the only factor. You have to take into account >>things like the cache. Usually working with 8-bit data on a 32-bit cpu might be >>a little slower than working with 32-bit data, but if using 8-bit data means >>that all of your data and code fits into the cache, then using 8-bit data can be >>significantly faster. > >Well, here on my laptop i'm working with a celeron 2.4 gHz cpu, which i'm pretty >sure doesn't have a cache. So I may as well use integers, i suppose. My desktop >has a full P4 though, so I may have to investigate some way to definet it >differently depending on the computer i'm on. When you specify integers make sure they are 32 bit integers. Eg. DIM I as long, (not DIM I as integer) The chess engine Minimax increased NPS by 20% when I converted all 16 bit integers to 32 bit integers. Note: this was done using PowerBASIC not VB. I have a question, does VB.NET support 64 bit integers (Quad integer - Eg. Dim I as QUAD)? A bit of a joke if it doesn't. Cheers, Tom.
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