*What hit me was the "Processors are so fast now we can Brute force grep over 10...

up_and_up · on May 8, 2014

> The key to making programs fast is to make them do practically nothing.

Great quote from that referenced post.

jug6ernaut · on May 8, 2014

Awesome read, thanks for sharing! Almost worth a HN post in itself if you ask me.

npsimons · on May 8, 2014

I think it was posted a while back; it was an interesting enough article that it stuck in my head and I was able to find it pretty easily by googling "why is grep so fast?".

Ah, here it is:

https://news.ycombinator.com/item?id=2393587

And again!

https://news.ycombinator.com/item?id=6813937

And duplicate submissions are listed in those postings.