Percona

OCTOBER 13, 2023

Visual Studio Code (VS) supports memory dump debugging via C/C++ extension: [link]. When MySQL generates a core file, the VS code simplifies the process of debugging. This blog will discuss how to debug the core file in VS code. Installing c/c++ extension We need to install the c/c++ extension.

Code 102

Code C++ Storage Programming 102

DZone

MAY 15, 2021

As testing has to be performed on varied combinations, it can lead to code duplication as a lot of test methods will be doing the same thing but on different input combinations. I have come across many such situations during the code optimization process when I felt that a part of the code is either duplicated or redundant.

Testing 227

Testing Operating System Code Processing 227

Dynatrace

JUNE 10, 2022

The IT world is rife with jargon — and “as code” is no exception. “As code” means simplifying complex and time-consuming tasks by automating some, or all, of their processes. Today, the composable nature of code enables skilled IT teams to create and customize automated solutions capable of improving efficiency.

Best Practices 218

Best Practices Infrastructure Code Speed 218

DZone

AUGUST 29, 2021

Static code analysis allows you to identify and eliminate many defects at an early stage. Let's look at an example of such a dormant error. Moreover, it's possible to detect dormant errors that don't show themselves when they appear. They can cause many problems in the future and it requires many hours of debugging to detect them.

Code 235

Code C++ 235

HammerDB

MARCH 25, 2023

Docker build, example CLI scripts were added to build and run the TPROC-C workload in the Tcl language. these were enhanced to also add Python based scripts, and to include scripts for both TPROC-C and TPROC-H and a driver script for Linux environments. Copy Code Copied Use a different Browser ~/HammerDB-4.7$

C++ 83

C++ Virtualization Benchmarking Database 83

The Netflix TechBlog

FEBRUARY 13, 2020

By Aditya Mavlankar, Jan De C**k¹, Cyril Concolato, Kyle Swanson, Anush Moorthy and Anne Aaron TL; DR We need an alternative to JPEG that a) is widely supported, b) has better compression efficiency and c) has a wider feature set. Shown below are screenshots of the Netflix app on iOS as an example.

Code 212

Code Metrics Efficiency Open Source 212

Percona

OCTOBER 12, 2023

It shows which code paths are more busy on the CPU in given samples. An example of a flame graph can be found below: Each box is a function in the stack, and wider boxes mean more time the system was busy on CPU on these functions. An example is kubectl-flame ( [link] ). ✔ Launching profiler. ✔ Profiling.

Code 110

Code Tuning C++ Benchmarking 110

Nick Desaulniers

MAY 12, 2019

Prefer f(void) in C to potentially save a 1B instruction per function call when targeting x86_64 as a micro-optimization. Doesn’t matter for C++. While messing around with some C code in godbolt Compiler Explorer , I kept noticing a particular funny case. For example, the following C code: 1.

C++ 111

C++ Code Testing 111

Percona

AUGUST 16, 2023

In database management, well-formatted SQL code is easier to read and a vital aspect of maintaining clean, efficient, and error-free databases. PostgreSQL developers and database administrators often deal with complex SQL queries, making code readability a critical factor for productivity. What is pgFormatter? cat samples/ex1.sql

Code 77

Code Best Practices Open Source C++ 77

O'Reilly

OCTOBER 12, 2021

Kevlin Henney and I were riffing on some ideas about GitHub Copilot , the tool for automatically generating code base on GPT-3’s language model, trained on the body of code that’s in GitHub. First, we wondered about code quality. We know how to test whether or not code is correct (at least up to a certain limit).

Code 118

Code Programming C++ Testing 118

DZone

FEBRUARY 12, 2022

This article contains a very interesting example. It's a perfect example of how wrong code can crash one day, even though it could work for many years. We inspect an error pattern that the SEI CERT C++ coding standard describes as MSC52-CPP. Value-returning functions must return a value from all exit paths.

C++ 245

C++ Code Performance 245

The Polyglot Developer

APRIL 1, 2019

Building a Hello World Example C++ Application was a first example of what I was talking about. However, in this previous example, much of our work was done in a basic text editor, then compiled and ran with a Command Prompt or Terminal. It works, but it isn’t the most elegant.

C++ 49

C++ Code Development Programming 49

Brendan Gregg

JANUARY 1, 2019

Programming in eBPF directly is incredibly hard, the same as coding in v8 bytecode. But no one codes in v8: they code in JavaScript, or often a framework on top of JavaScript (jQuery, Angular, React, etc). People will use it and code in it via frameworks. What is an example of eBPF tracing? It's the same with eBPF.

C++ 111

C++ Virtualization Programming Code 111

Dynatrace

MAY 29, 2024

Prerequisites Before you begin, please make sure you have the following: Access to a Dynatrace environment (for example [link] environment-id.apps.dynatrace.com ) where you can install and access Dynatrace® Apps and run Workflows. IDE or text editor of your choice (VS Code recommended) Now, consider your use case!

Best Practices 141

Best Practices C++ Code Availability 141

The Polyglot Developer

AUGUST 6, 2018

As you might know, I earned a Computer Science degree from the University of California, Merced, and most of the courses I took involved C++ development. While some of the more modern code schools teach JavaScript, the common university will continue to teach C++ for the foreseeable future.

C++ 40

C++ Code Development 40

Sutter's Mill

FEBRUARY 22, 2021

Today, the ISO C++ committee held its second full-committee (plenary) meeting of the pandemic and adopted a few more features and improvements for draft C++23. Japan had participated in person during C++98 and C++11, and has always given us good remote ballot feedback during C++14/17/20, and is attending again now; welcome back!

C++ 73

C++ Virtualization Lambda Government 73

Sutter's Mill

JULY 20, 2019

Obligatory comment: The C++20 Eagle has wings. At noon today, July 20 2019, the ISO C++ committee completed its summer meeting in Cologne, Germany, hosted with thanks by Think-Cell, SIGS Datacom, SimuNova, Silexica, Meeting C++, Josuttis Eckstein, Xara, Volker Dörr, Mike Spertus, and the Standard C++ Foundation.

C++ 98

C++ Education Programming Design 98

Sutter's Mill

NOVEMBER 13, 2020

On Monday, the ISO C++ committee completed its final full-committee (plenary) meeting of 2020 and adopted the first changes to the C++23 working draft, including a few new features. First up was P0330 by JeanHeyd Meneide , which adds a literal suffix for (signed) size_t, so in C++23 we will be able to write literals like 100uz.

C++ 70

C++ Virtualization Code Design 70

Sutter's Mill

JUNE 9, 2021

On Monday, the ISO C++ committee held its third full-committee (plenary) meeting of the pandemic and adopted a few more features and improvements for draft C++23. Slovakia is our newest national body to officially join international C++ work. See the paper for details, and why we really want if consteval in the language.

C++ 69

C++ Virtualization Code Testing 69

CSS Wizardry

OCTOBER 16, 2023

Concatenate Concatenation is probably the trickiest bit to get right because, even though the three C s happen in order, decisions we make later will influence decisions we make back here. In our specific examples above, the one-big-file pattern incurred 201ms of latency, whereas the many-files approach accumulated 4,362ms by comparison.

Cache 291

Cache Latency Strategy Speed 291

Testsigma

FEBRUARY 3, 2021

Example: Let’s take an example of an e-commerce mobile app. Unit Testing – Developers execute unit tests for the smallest unit of code, whenever they commit new code in the code repository. Example: Here, we test the integration of two or more modules like- from cart to make a payment module.

Mobile 82

Mobile Testing Hardware C++ 82

Nick Desaulniers

JULY 23, 2015

21st Century C by Ben Klemens. There are a few other useful tools that came to mind that I’ve used when working with C and C++ codebases. C & C++ codebases; running these tools on the code or adding them to the codebases. Code Formatters. with lots of C++ code have documents.

C++ 75

C++ Programming Open Source Code 75

The Polyglot Developer

SEPTEMBER 8, 2021

Remember all the cheat codes you could use in old-school games back in the day? Remember the Konami cheat code? Ever wonder how you could add cheat codes to your own games? Adding cheat codes to your game is a great way to leave your imprint. Think easter eggs, but even more secretive.

Games 59

Games Code C++ Development 59

Sutter's Mill

JULY 13, 2019

More about that in the post-meeting trip report after the meeting is over… FAQs (As of pre-Cologne, July 2019) There are bugs in the standard, so should we delay C++20? If we had just another meeting or two, we could add <feature> which is almost ready, so should we delay C++20? Of course, and no. Of course, and no.

C++ 98

C++ Entertainment Education Azure 98

DZone

NOVEMBER 2, 2020

Two great examples to support the same statement would be the following. Let's start with Zoom, an incredible video-conferencing application on which almost today's world relies on was developed using JAVA and C++. The second example will be a food ordering application that again depends on several different coded script lines.

Java 247

Java Programming C++ Code 247

Brendan Gregg

DECEMBER 31, 2018

Programming in eBPF directly is incredibly hard, the same as coding in v8 bytecode. But no one codes in v8: they code in JavaScript, or often a framework on top of JavaScript (jQuery, Angular, React, etc). People will use it and code in it via frameworks. What is an example of eBPF tracing? It's the same with eBPF.

C++ 52

C++ Virtualization Programming Code 52

Sutter's Mill

MAY 1, 2023

Simple, mathematically safe, and efficient chained comparisons ( commit ) P0515 “Consistent comparison” (aka “spaceship”) was the first feature derived from this Cpp2 work to be adopted into the ISO Standard for C++, in C++20. Thank you again to everyone who helped land this Cpp2 feature in the ISO C++ Standard.

C++ 97

C++ Virtualization Lambda Code 97

Dynatrace

JANUARY 17, 2023

Code changes are often required to refine observability data. This results in site reliability engineers nudging development teams to add resource attributes, endpoints, and tokens to their source code. This example is a good starting point for exploratory analysis with context-aware Dynatrace Davis insights.

Analytics 289

Analytics Metrics Open Source Java 289

HammerDB

JULY 14, 2021

adds full support for MariaDB in both the GUI as shown: And in the CLI as a separate database from MySQL, this post describes a setup and test for MariaDB using the CLI on Linux as an example running the TPROC-C workload. dbset db maria dbset bm TPC-C diset connection maria_socket /tmp/mariadb10234.sock HammerDB v4.2

Testing 57

Testing C++ Virtualization Tuning 57

Sutter's Mill

SEPTEMBER 28, 2023

Started self-hosting I haven’t spent a lot of time yet converting cppfront’s own code from today’s syntax 1 to my alternate syntax 2 (which I’m calling “Cpp1” and “Cpp2” for short), but I started with all of cppfront’s reflection API and metafunctions which are now mostly written in Cpp2.

C++ 89

C++ Cache Code Design 89

Dynatrace

DECEMBER 13, 2023

That’s why many organizations are turning to generative AI—which uses its training data to create text, images, code, or other types of content that reflect its users’ natural language queries—and platform engineering to create new efficiencies and opportunities for innovation. No one will be around who fully understands the code.

Technology 212

Technology Technology Artificial Intelligence Analytics 212

Dynatrace

MAY 2, 2024

With the ability to generate new content—such as images, text, audio, and other data—based on patterns and examples taken from existing data, organizations are rushing to capitalize on the AI model. blog Generative AI is an artificial intelligence model that can generate new content—text, images, audio, code—based on existing data.

Artificial Intelligence 238

Artificial Intelligence Cloud Best Practices DevOps 238

SQL Performance

AUGUST 12, 2020

In my examples I’ll use a sample database called TSQLV5. For example, it doesn’t support some of the more advanced recursive query elements that allow you to control the search direction and handle cycles in a graph structure. However, there are very few cases in T-SQL where without a terminator the code is ambiguous.

C++ 140

C++ Code Design Database 140

SQL Performance

MAY 24, 2022

I’ll be using the sample database TSQLV6 in the examples in this article. This clause allows you to shorten your code by avoiding the repetition of identical parts of your window specifications. You can download this sample database here. The WINDOW Clause. The WINDOW clause is part of the ISO/IEC SQL standard.

Servers 145

Servers C++ Code Database 145

Percona

DECEMBER 15, 2023

The system will generate error codes if they try to delete users which they did not create. Let me try to explain this with the help of an example. postgres=# CREATE ROLE dev_admin CREATEROLE LOGIN; CREATE ROLE postgres=# c postgres dev_admin You are now connected to database "postgres" as user "dev_admin".

C++ 93

C++ Database Open Source Systems 93

Sutter's Mill

FEBRUARY 12, 2024

I generally give one or two courses a year on C++ and related technologies. Because “high-performance low-latency” is kind of C++’s bailiwick, and because it’s my course, you’ll be unsurprised to learn that the topics and code focus on C++ and include coverage of modern C++17/20/23 features.

C++ 40

C++ Latency Code Technology 40

Testlodge

AUGUST 9, 2023

The tester established a baseline by selecting the most critical, common, or obvious path through the code selection. Steps to Performing Basis Path Testing The first step is to create a control flow graph for a specified code section. The second step is to select a baseline path through the code.

Testing 75

Testing Software Software C++ 75