float[] → Vertex[] – decreases performance by 1000%

Ali Çehreli acehreli at yahoo.com
Wed Jul 25 15:37:19 PDT 2012


On 07/25/2012 03:26 PM, David wrote:
> Am 26.07.2012 00:12, schrieb Ali Çehreli:
>> On 07/24/2012 11:38 AM, David wrote:
>>
>> > Well this change decreases my performance by 1000%.
>>
>> Random guess: CPU cache misses?
>>
>> Ali
>>
>
> You're the 2nd one mentioning this, any ideas how to check this?

I have no experience. Pages like this look promising:

 
http://stackoverflow.com/questions/2486840/linux-c-how-to-profile-time-wasted-due-to-cache-misses

Ali


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