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  Understanding PGO in GoLang 1.20

Background The Go 1.20 version was officially released in February 2023, it introduced the PGO(Profile Guided Optimization) mechanism. The basic principle of PGO can be divided into the following two steps: First, profiling is performed on the program to collect data about the program's runtime and generate a profiling file. When compiling the program, enable the PGO option, and the compiler will optimize the program's performance based on the content in the .pgo file. When compiling a program...

   GO 1.20,PGO,GOLANG     2023-02-28 04:27:46

  How Online Training Is Revolutionalizing The Corporate Landscape

Everything is transforming to the digital world. Be it a retail store or training of employees, irrespective of the industry, every business, and its aspect is finding its space online.  One of the major reasons for this transformation is the ease of accessibility. When you understand you don’t need to be at a certain place to get your training, you will be more interested. This convenience is what drives online training.  It is vital to keep conducting training programs for empl...

   EDUCATION,ELEARNING     2021-03-08 05:36:41

  Apple investigating new iPad WiFi issues, tells AppleCare to replace affected units

According to an internal AppleCare document, Apple is actively investigating a series of WiFi-related issues affecting the third-generation iPad. Since the new iPad’s launch, many users have been complaining about third-generation iPad WiFi issues ranging from connection drops, slow download and upload speeds, or the device’s inability to even pickup local WiFi networks. A thread discussing the issue exists on Apple’s online support forums has almost amassed 700 repl...

   Apple,iPad,Wifi,Hardware issue     2012-04-06 01:37:59

  $40 million per year to keep Wikipedia running

Wikipedia is an incredibly frugal and efficient nonprofit organization. It serves half a billion visits per month. But do you know how much it costs to keep this huge website running? According to 2012-13 Wikimedia Foundation Annual Plan, the expected spending is around $40 million. Some may argue that Wikipedia is just a site with "just text", why does it cost so much? Oliver Emberton shared his view. To keep Wikipedia running and serve 500 million visits per month. First, you're going to need ...

   Wikipedia,Spending,Cost     2013-09-24 23:05:10

  JavaScript interview questions

This post will cover the JavaScript questions I have encountered and have seen during my programming career. They will mainly focus on vanilla JavaScript though there are lots of excellent frameworks out there and many people are using them in their daily work. this keyword this keyword is an very important but easy to confuse concept in JavaScript since it is always referring to the calling object of the function. 1. What will be the output of below code snippet? function User(name) { this....

   JAVASCRIPT,ALGORITHM,THIS,CLOSURE     2019-03-09 07:05:46

  12 useful Chrome commands

Many useful features of Chrome don't show up on its menus. You can access them through the chrome:// command. In this article we will introduce 12 useful chrome:// commands. 1. chrome://flags It can be used to turn on or turn off some chrome features. 2. chrome://dns This command will show the domain name list caught by the browser. 3. chrome://downloads You can access this through chrome menu as well. The shortcut is Ctrl+J 4. chrome://extensions This command equals to Menu->Tools->Ext...

   Chrome,chrome://     2013-01-25 04:38:03

  Advice on improving your programming skills

Programming is cool. But behind the scenes it's also difficult for many people. Many people are defeated at the early stage of learning programming. When you are not so familiar with programming, you may find you don't know where to start and what to start with first and where to apply the knowledge. Once you go though the tough period of the learning phase, you will find a whole new world. Below are some advice which can help you improve your programming skills quickly. Write more code.  T...

   Programming,Advice     2014-02-21 08:59:04

  Don't write on the whiteboard

I recently interviewed at a major technology company. I won't mention the name because, honestly, I can't remember whether I signed an NDA, much less how strong it was.I did well. Mostly because of luck. I normally step over myself when I interview. I guess I've improved over the years. Here are a few tips to ace your own interview.1. Don't write on the whiteboardWhen I interviewed at Palantir around 5 years ago, I had a lot of trouble with this. Yes, I knew next to nothing about compu...

   Interview,Preparation,Whiteboard,Note,Python     2012-01-11 11:31:32

  The seven rules of Unobtrusive JavaScript

I've found the following rules over the years developing, teaching and implementing JavaScript in an unobtrusive manner. They have specifically been the outline of a workshop on unobtrusive JavaScript for the Paris Web conference 2007 in Paris, France. I hope that they help you understand a bit why it is a good idea to plan and execute your JavaScript in this way. It has helped me deliver products faster, with much higher quality and a lot easier maintenance. 1. Do no...

   JavaScript,Feature,Tips     2012-01-18 08:21:39

  PHP function overloading puzzle clearer

PHP's meaning of overloading is different than Java's. In PHP, overloading means that you are able to add object members at runtime, by implementing some of the __magic methods, like __get, __set, __call, __callStatic. You load objects with new members. Overloading in PHP provides means to dynamically "create" properties and methods. These dynamic entities are processed via magic methods one can establish in a class for various action types. Some example:class Foo{    p...

   PHP,function overloading,OOP,default val     2011-07-11 03:24:30

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