Re: - 1.6-rc5: Background multitasking

From: [at]} <Georgy>
Date: Sat, 3 Nov 2007 16:35:53 +0100

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Sure, misalignment implies a severe execution time performance penalty.

The question is, if there exist an (undocumented?) linker option in
Blackbox, similar to ALIGNMENT of XDS? If not, are there any plans to
improve the code generation for modern CPUs?

On 9/27/07, igor <igor_d{([at]})nowhere.xy
>
> GJ> I have another observation, which looks strange to me. If in
> GJ> the example given below I uncomment the following line (* one :=
> GJ> 1.0; *), which just duplicates the previous command, the execution
> GJ> time of the whole program drops by a factor of ~3. Is this because
> GJ> the BB compiler is a non optimizing one? Or something is broken
> GJ> here? I'm using Windows XP on a Pentium M CPU.
>
> On some CPUs flooating point performance depends on data alignment.
>
>
>

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Received on Sat Nov 03 2007 - 16:35:53 UTC