Here’s a link to an article titled, Little’s Law- An insight on the relation between latency and throughput.
“Async is not about performance – it’s about scalability.”
From this tweet by Viktor Klang, Lightbend
Li Haoyi has a nice blog post titled, Strategic Scala Style: Principle of Least Power.
This page from the Busy Coder’s Guide to Android discusses Android performance, including the Android hardware acceleration setting shown in the image.
Ubuntu is running great on my old 2008 iMac, but if you’re having Linux performance issues, here’s an ArchLinux page titled “Improving performance.”
This is a link to an article titled, “Optimizing Linux for slow computers.” Note that this article links to this more thorough resource on archlinux.org.
Here are a couple of paragraphs from it:
When tuning a server, you'll really want to tweak for performance and high throughput. That's where most Linux configurations really shine over the competition: they come better tuned to get the most out of server configurations.
As shown in the image, I just installed Ubuntu on my 2008 27” iMac. The UI is interesting, a combination of MacOS and Windows. From what I’ve seen, I think I’ll like the Ubuntu UI (Unity) more than Linux Mint, but I’m open. So far Ubuntu is also significantly faster than the latest versions of MacOS were on the same hardware, though that may be because MacOS had a few hundred thousand more files on it than Ubuntu has at the moment.
I live in Colorado, where cellular reception can be very hit or miss. As just one example there are only two spots in my apartment where I can make a phone call. So when I’m at home trying to view a website using Safari on my iPhone and the page is loading really slow, I find it really annoying that my iPhone is trying to use my cellular data rather than my home wireless network (WiFi).
Note: Apple implies that the cellular data is “assisting” the WiFi, but with the poor cell reception here, I can confirm that this feature just slows down my iPhone internet speed.