In my experience, one of the highest-impact upgrades you can perform to increase Raspberry Pi performance is to buy the fastest possible microSD card—especially for applications where you need to do a lot of random reads and writes.
There is an order-of-magnitude difference between most cheap cards and the slightly-more-expensive ones (even if both are rated as being in the same class)—especially in small-block random I/O performance. As an example, if you use a normal, cheap microSD card for your database server, normal database operations can literally be 100x slower than if you used a standard microSD card.
Because of this, I went and purchased over a dozen different cards and have been putting them through their paces. Here are the results of those efforts...
Visit TFA for the full table. The overall winner seems to be OWC Envoy SSD (USB), with hdparm buffered: 34.13 MB/s; dd write: 34.4 MB/s; 4K rand read: 7.06 MB/s; 4K rand write: 8.20 MB/s
takyon: The value winner in the article is the Samsung Evo+ 32 GB (purchased for $9.99 from Best Buy) with decent/passable speeds.
(Score: 3, Informative) by Hairyfeet on Saturday December 05 2015, @01:06PM
Try Daily Rotation [dailyrotation.com] which is where I got every article I ever submitted, they even have a handy sort where you can just to filter by the latest trending topics like Encryption, Open Source, Apple/Google/MSFT, tablets, phones, etc.
If you want a "one stop shop" for nerdy tech heavy articles? they are the place to go, in fact you could probably keep this site very well fed with all the latest tech news simply by grabbing stories from Daily Rotation. Hell just looking at their top 10 headlines you have stories about solving the mystery of leaking arsenic in ground water,a story on let's encrypt, magnetic fields near the Milky Way black hole, its about as nerdy and tech heavy as one can get.
ACs are never seen so don't bother. Always ready to show SJWs for the racists they are.
(Score: 2) by Phoenix666 on Saturday December 05 2015, @01:48PM
Thanks, HairyFeet.
Washington DC delenda est.