Here is the openjdk code for Math.max() in Java: public static int max(int a, int b) { return (a >= b) ? a : b; } So, the code would probably be (almost) exactly the same speed. (Lets be honest, if you are worrying about speed improvements at such a low level, you probably have … Read more
A socket is the physical socket where the physical CPU capsules are placed. A normal PC only have one socket. Cores are the number of CPU-cores per CPU capsule. A modern standard CPU for a standard PC usually have two or four cores. And some CPUs can run more than one parallel thread per CPU-core. … Read more
Yes, there is. You want to create two cpusets, one with your isolated CPU and the other with all the rest of the CPUs. Assign your special process to the isolated cpuset and all the rest of the processes to the other cpuset. Here is a simple example script that will do it: mkdir /cpuset … Read more
Effectively what you are differing is process based vs thread based. Threads share memory (e.g. SharedArrayBuffer) whereas processes don’t. Essentially they are the same thing categorically. cluster One process is launched on each CPU and can communicate via IPC. Each process has it’s own memory with it’s own Node (v8) instance. Creating tons of them … Read more
The Javadoc of int java.lang.Class.getModifiers() specifies what should be returned for some of the modifiers for array types (for example, the final modifier is required to be true and the interface modifier is required to be false). On the other hand, it doesn’t specify what the abstract or static modifiers should be for array types, … Read more
Documentation: For: System.out.println(“Output1: “+blank.split(“,”).length); The array returned by this method contains each substring of this string that is terminated by another substring that matches the given expression or is terminated by the end of the string. The substrings in the array are in the order in which they occur in this string. If the expression … Read more
In general, synchronized methods are used to protect access to resources that are accessed concurrently. When a resource that is being accessed concurrently belongs to each instance of your class, you use a synchronized instance method; when the resource belongs to all instances (i.e. when it is in a static variable) then you use a … Read more
In addition to what was already said, String literals [ie, Strings like “abcd” but not like new String(“abcd”)] in Java are interned – this means that every time you refer to “abcd”, you get a reference to a single String instance, rather than a new one each time. So you will have: String a = … Read more
A core is usually the basic computation unit of the CPU – it can run a single program context (or multiple ones if it supports hardware threads such as hyperthreading on Intel CPUs), maintaining the correct program state, registers, and correct execution order, and performing the operations through ALUs. For optimization purposes, a core can … Read more