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On feeding your CPU with data

Started byAmine Moulay Ramdane <aminer68@gmail.com>
First post2020-12-14 10:53 -0800
Last post2020-12-14 20:04 +0100
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  On feeding your CPU with data Amine Moulay Ramdane <aminer68@gmail.com> - 2020-12-14 10:53 -0800
    Re: On feeding your CPU with data Kli-Kla-Klawitter <kliklaklawitter69@gmail.com> - 2020-12-14 20:04 +0100

#6162 — On feeding your CPU with data

FromAmine Moulay Ramdane <aminer68@gmail.com>
Date2020-12-14 10:53 -0800
SubjectOn feeding your CPU with data
Message-ID<05e9ed16-6e3e-4fce-9235-7ae10a3d1eb4n@googlegroups.com>
Hello,


On feeding your CPU with data

Read more here:

https://lemire.me/blog/2012/08/13/on-feeding-your-cpu-with-data/


Thank you,
Amine Moulay Ramdane.

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#6163

FromKli-Kla-Klawitter <kliklaklawitter69@gmail.com>
Date2020-12-14 20:04 +0100
Message-ID<rr8d0q$n8g$1@gioia.aioe.org>
In reply to#6162
Am 14.12.2020 um 19:53 schrieb Amine Moulay Ramdane:
> Hello,
> On feeding your CPU with data
> Read more here:
> https://lemire.me/blog/2012/08/13/on-feeding-your-cpu-with-data/

These blogs are very weak although they're from a professor. What he
missed is that the 1/16-loop doesn't become 16 times faster because
it is limited to the speed of fetching the cachelines. That's also
the limitation of the N-loop so that the performance becomes as more
similar as larger the array is, i.e. it's less cachable.

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