Java HashSet Constant Time Performance does not scale well
1889
How do I write a correct micro-benchmark in Java?
90867
The performance impact of using instanceof in Java
87863
String Constant Pool
95720
Is there a performance difference between a for loop and a for-each loop?
35450
Constant Amortized Time
17932
HashSet allows duplicate item insertion if hashCode() is not overridden
25288
How to make HashMap work with Arrays as key?
6330
What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
122834
Mongodb Standalone Performs better than Replica Set
51466
Why is this parallel evaluation with Dispatch[] so slow?
140234
Why is a hash of blocks - with index - weaker than hashing the entire thing?
84520
Overhead of using locks instead of atomic intrinsics
7023
Java time-based map/cache with expiring keys
89487
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
130290
Ordering of elements in Java HashSet
15548
Is a Java hashmap search really O(1)?
69544
Loadfactor and Capacity of hashmap