...t's only partially true onedaywhen. The database behaves consistently and predictably. The check constraint will execute after the row is added to the table and before the transaction is committed by the dbms and you can count on that. That blog was talking about a pretty unique problem where y...

...ed to, though which version exactly pip then installs is sometimes hard to predict, especially if you have configured pip with multiple source indices and/or configuration options which constrain which packages can be installed. A common need is to specify a minimum version requirement, like pip &gt...

...domly, instead of making it almost always d!=0, and you'll see more branch prediction failures. Branch prediction is great if one branch is almost always followed, or if the following of one branch or the other is really clumpy... – Yakk - Adam Nevraumont May ...

...fo. Summary: the 3 reasons given are Versioning, Performance, and Security/Predictability - [see next comment] – Steven A. Lowe Oct 14 '08 at 21:52 1 ...

...gh, or you could just use a simple counter. Attackers hijack sessions when predictable identifiers are used. There is tension between length and security. Shorter identifiers are easier to guess, because there are fewer possibilities. But longer identifiers consume more storage and bandwidth. A lar...

...is not the answer I was looking for. Are there situations in which you can predict a stackoverflow may occur due to memory constraints, but this isn't necessarily a fatal problem? What are the two bullet points at the end? I don't follow what they are saying. – retrohacker ...

...ment is that they are unique per user, there is no benefit in them being unpredictable or difficult to guess. Salts only need to be long enough so that each user's salt will be unique. Random 64-bit salts are very unlikely to ever repeat even with a billion registered users, so this should be fine...

...single-threaded. If you're not making an asynchronous call, it will behave predictably. The main JavaScript thread will execute one function completely before executing the next one, in the order they appear in the code. Guaranteeing order for synchronous functions is trivial - each function will e...

... probably pulled out of a hat. Proof: Chaining can be avoided and branch prediction exploited by predicting if a bucket is empty or not. A bucket is probably empty if the probability of it being empty exceeds .5. Let s represent the size and n the number of keys added. Using the binomial theorem,...

...difference, or count more interesting aspects such as the numer of hard-to-predict jumps etc. The actual performance properties is much more subtle than the instruction count. – dkagedal Aug 8 '10 at 21:45 ...