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Distributed sequence number generation?
... number generator. it doesn't have to be a big database. memcached has a fast atomic counter, in the vast majority of cases it's fast enough for your entire cluster.
separate an integer range for each node (like Steven Schlanskter's answer)
use random numbers or UUIDs
use some piece of data, toget...
SQL Joins Vs SQL Subqueries (Performance)?
...mong other things.
The only REAL way to tell with 100% certainty which is faster is to turn on performance tracking (IO Statistics is especially useful) and run them both. Make sure to clear your cache between runs!
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Getting the class name from a static method in Java
... hack and according to Artyom Krivolapov's post below it's also by far the fastest approach.
– skomisa
Jan 9 '18 at 5:25
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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
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TryGetValue will be faster.
ContainsKey uses the same check as TryGetValue, which internally refers to the actual entry location. The Item property actually has nearly identical code functionality as TryGetValue, except that it will throw an e...
Fastest way to convert an iterator to a list
Having an iterator object, is there something faster, better or more correct than a list comprehension to get a list of the objects returned by the iterator?
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Truncate Two decimal places without rounding
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Universal and fast method (without Math.Pow() / multiplication) for System.Decimal:
decimal Truncate(decimal d, byte decimals)
{
decimal r = Math.Round(d, decimals);
if (d > 0 && r > d)
{
return r - new ...
Is there a difference between using a dict literal and a dict constructor?
...t,
the first doesn't need to lookup dict which should make it a tiny bit faster
the second looks up dict in locals() and then globals() and the finds the builtin, so you can switch the behaviour by defining a local called dict for example although I can't think of anywhere this would be a good i...
How to generate a range of numbers between two numbers?
...xecution plan shows that this answer (has the least query cost and) is the fastest.
– stomy
Jan 3 '18 at 19:06
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How to improve Netbeans performance?
Is there a real way to get Netbeans to load and work faster?
29 Answers
29
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What JSON library to use in Scala? [closed]
... super-simple API
Jawn - JSON library by Erik Osheim aiming for Jackson-or-faster speed
Rapture JSON ± - a JSON front-end which can use 2, 4, 5, 6, 7, 11 or Jackson as back-ends
circe ???? - fork of Argonaut built on top of cats instead of scalaz
jsoniter-scala - Scala macros for compile-time gener...