Re: Slow memory access, Not understood when using integer@(mem address)

[Brian G <brian@xxxxxxxxxxxxxxxx>]

On 9/23/26 13:36, Brian G wrote:
> I have attached a small project that tests the access speed to memory 
> using integer@(memory address), as used for Linux library interfaces.
> I am sorry but 44 times slower than access through a struct pointer is 
> just a bit much to accept!
> Using this structure and allocating a data space
> Public Struct myint
>     counter As Integer
> End Struct
> mptr=alloc(100)
> Here is an example using integer@(xx) compared to accessing thru a 
> structure 1 million times
>
> Test Speed to Access script Variables using integer@ptr access method, 
> no locking
> using: Integer@(mptr) = Integer@(mptr) + 1
> Total time 4.40942561195698
>
> Test Speed to Access script Variables using struct direct access 
> method, no locking
> dim vptr as myint = mptr
> using: Inc vptr.counter and tested with vptr.counter = vptr.counter + 
> 1, same results
> Total time 0.098687710007653
>
> Struct access is 44.6810829482192 times faster than integer @ access 
> to the same memory address
>
> Can this be fixed, it is pretty bad!
Update

using fast unsafe the values are interesting so normal is about 1442  
times slower than fast unsafe version

Hello world
Test Speed to Access script Variables using integer@ptr access method, 
no locking
Total time 0.003050090977922
Test Speed to Access script Variables using struct direct access method, 
no locking
Total time 0.041397490072995
Struct access is now 13.5725427118894 times slower..... confusing such a 
big difference

--
~~~~ Brian

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