Read-copy-update (RCU) is a synchronization mechanism that avoids the use of lock primitives while multiple threads concurrently read and update elements that are linked through pointers and that belong to shared data structures (e.g., linked lists, trees, hash tables).
Cross-Cutting Concerns - Cross-cutting concerns are things that affect many parts of a product. And are hard to separate. For example, monitoring and alerting the health of the services.
Given a large enough beta-tester and co-developer base, almost every problem will be characterized quickly and the fix obvious to someone.
Smart data structures and dumb code works a lot better than the other way around.
If you treat your beta-testers as if they’re your most valuable resource, they will respond by becoming your most valuable resource.
The next best thing to having good ideas is recognizing good ideas from your users. Sometimes the latter is better.
Often, the most striking and innovative solutions come from realizing that your concept of the problem was wrong.
Perfection (in design) is achieved not when there is nothing more to add, but rather when there is nothing more to take away. (attributed to Antoine de Saint-Exupéry)
Any tool should be useful in the expected way, but a truly great tool lends itself to uses you never expected.
When writing gateway software of any kind, take pains to disturb the data stream as little as possible—and never throw away information unless the recipient forces you to!
A security system is only as secure as its secret. Beware of pseudo-secrets.
To solve an interesting problem, start by finding a problem that is interesting to you.
Provided the development coordinator has a communications medium at least as good as the Internet, and knows how to lead without coercion, many heads are inevitably better than one.