#memory-management

New Post has been published on Scientia

Parallel Computing for Faster Computing

Faster parallel computing – New programming language delivers fourfold speedups on problems common in the age of big data. Researchers have designed a new programming language that lets application developers manage memory more efficiently in programs that deal with scattered data points...

Fix: Where exactly L1, L2 and L3 Caches located in computer? #programming #answer #computers

Where exactly L1, L2 and L3 Caches located in computer?

Where exactly L1, L2 and L3 Caches Located in computer ?

I know, we use Cache to increase performance by picking DATA and INSTRUCTIONS from Cache rather than Main Memory.

Following are my questions

Where exactly L1 Cache located ? . is on the CPU chip ?

Where exactly L2 Cache Located ?

Where exactly L3 Cache Located ? is on the Mother Board…

Fix: How to disable Mac OS X from using swap when there still is "Inactive" memory? #dev #computers #programming

How to disable Mac OS X from using swap when there still is "Inactive" memory?

A common phenomena in my day to day usage (and several other’s according to various posts throughout the internet) of OS X, the system seems to become slow whenever there is no more “Free” memory available. Supposedly, this is due to swapping, since heavy disk activity is apparent and that vm_stat reports many…

How to: Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php #it #dev #programming

Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

This error message is being presented, any suggestions?

Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

Answer [by nlaq]: Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

Increase your maximum memory limit to 64MB in your…

Fixed Does using "new" on a struct allocate it on the heap or stack? #dev #it #asnwer

Does using "new" on a struct allocate it on the heap or stack?

When you create an instance of a class with the new operator, memory gets allocated on the heap. When you create an instance of a struct with the new operator where does the memory get allocated, on the heap or on the stack ?

Answer: Does using "new" on a struct allocate it on the heap or stack?

As with all value types, structs…

Fixed Tricks to manage the available memory in an R session? #dev #it #asnwer

Tricks to manage the available memory in an R session?

What tricks do people use to manage the available memory of an interactive R session? I use the functions below [based on postings by Petr Pikal and David Hinds to the r-help list in 2004] to list (and/or sort) the largest objects and to occassionally rm()some of them. But by far the most effective solution was … to run under 64-bit Linux…

Fixed Deleting Objects in JavaScript #dev #it #asnwer

Deleting Objects in JavaScript

I’m a bit confused with JavaScript’s delete operator. Take the following piece of code:

var obj = { helloText: "Hello World!" }; var foo = obj; delete obj;

After this piece of code has been executed, obj is null, but foo still refers to an object exactly like obj. I’m guessing this object is the same object that foo pointed to.

This confuses me, because I expected…

Fixed What is private bytes, virtual bytes, working set? #dev #it #asnwer

What is private bytes, virtual bytes, working set?

I am using the perfmon windows utility to debug memory leaks in a process.

Perfmon explanation:

Working Set- Working Set is the current size, in bytes, of the Working Set of this process. The Working Set is the set of memory pages touched recently by the threads in the process. If free memory in the computer is above a threshold, pages are left…