Re: The effect of cache on performance

>
> Just because the world is full of people that think just like you, doesn't
> mean the other ones can't be right.
>

Do you really think there's such a thing as "right," unless you're talking
directly observable physical phenomena?

Sincerely,

jw


--
Americans might object: there is no way we would sacrifice our living
standards for the benefit of people in the rest of the world. Nevertheless,
whether we get there willingly or not, we shall soon have lower consumption
rates, because our present rates are unsustainable.



On Thu, Jul 1, 2010 at 1:12 AM, Richard Fabian <[email protected]> wrote:

> Any development approach where you don't consider the effect of the cache
> is going to have inferior performance to one that either implicitly, or
> explicitly, takes advantage of the cache.
>
> I do feel like we've been taught a lot of really good coding techniques
> that have ignored this issue. It doesn't mean that the code oriented
> techniques aren't good, for fast memory hardware our coding style and
> experience is invaluable.
>
>
> On 1 July 2010 06:12, Richard <[email protected]> wrote:
>
>> I stumbled across this today and found it an interesting read.
>> <http://queue.acm.org/detail.cfm?id=1814327>
>>
>> It relates to our "virtual function calls are bad!"[*] discussion
>> earlier.
>>
>> [*] they're not really bad, its cache misses that are bad.
>>  --
>> "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
>>  <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
>>
>>      Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
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>
>
>
> --
> fabs();
> Just because the world is full of people that think just like you, doesn't
> mean the other ones can't be right.
>
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