Yielding in this context means to a different “thread” in your context, not the OS. If you want to express “this is a point where the program can do something else” it is a yield. If you block and can’t switch to something else… it is not.
So if you’re using an API like mmap like that you should think of it as IO (I don’t think you can, but am not sure).
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I think it's referring to the fact that certain details (traffic, DNS requests, timestamps, IP addresses) are logged. Ideally you want a service that does not log anything, that's why "Yes" is red.
Tagging would be the next addition. I added the ability to search for keys by prefix quite efficiently, so provided one stored keys like "requests:server1", "requests:server2", one could easily run the following
requests = 0
for key in gauged.keys('requests:'):
requests += gauged.aggregate(key, Gauged.SUM, start=-Gauged.WEEK)
Generators are provided by V8, don't require an external fibers extension (i.e. hack), and will be available in the next node stable via `node --harmony-generators`.
node-fibers is under the hood, and works on the actual node stable. I hope ES6 generators -when stable- will provide similar tools, so wait.for will be based on ES6 generators.
The allocator may yield to the OS when requesting or releasing memory (e.g. sbrk, mmap, munmap)?