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

Sutter's Mill

JUNE 17, 2023

Minutes ago, the ISO C++ committee finished its meeting in-person in Varna, Bulgaria and online via Zoom, where we formally began adopting features into C++26. For example, the feature freeze for C++23 was in early 2022. Already in C++23] Rule 2. You can find a brief summary of ISO procedures here.

C++ 140

C++ Programming Tuning Design 140

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

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 252

Java Programming C++ Code 252

Sutter's Mill

NOVEMBER 11, 2023

Today, the ISO C++ committee completed its second meeting of C++26, held in Kona, HI, USA. Our hosts, Standard C++ Foundation and WorldQuant, arranged for high-quality facilities for our six-day meeting from Monday through Saturday. This time, the committee adopted the next set of features for C++26.

C++ 129

C++ Lambda Network Programming 129

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 338

Cache Latency Strategy Speed 338

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 109

Code C++ Storage Programming 109

Sutter's Mill

NOVEMBER 11, 2024

Starting today I’m excited to be working on a new team, with my C++ standards and community roles unchanged. It’s been a blast to be on the Microsoft Visual C++ compiler team for over 22 years! Drilling down a little: Why is 2024 a pivotal year for C++? Drilling down a little: Why is 2024 a pivotal year for C++?

C++ 95

C++ Lambda Retail Code 95

Dynatrace

JUNE 13, 2019

Dynatrace has been building automated application instrumentation—without the need to modify source code—for over 15 years already. Driving the implementation of higher-level APIs—also called “typed spans”—to simplify the implementation of semantically strong tracing code. What are the benefits of the Dynatrace contribution?

IoT 48

IoT C++ Analytics Java 48

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++ 99

C++ Virtualization Programming Code 99

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 122

Code Programming C++ Testing 122

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 293

Analytics Metrics Open Source Java 293

Dynatrace

DECEMBER 8, 2020

Teams are embracing new technologies and continuously deploying code. In addition, c loud – native environments with containers, microservices, and platforms like Kubernetes are highly dynamic. Dynatrace provides the C-suite with confidence about the security of their cloud-native ecosystem.

Cloud 298

Cloud Open Source Internet Internet 298

Sutter's Mill

AUGUST 13, 2023

Thanks again to C++ Now for inviting me to speak this year in glorious Aspen, Colorado, USA! The talk I gave there was just posted on YouTube, you can find it here: At CppCon 2022, I argued for why we should try to make C++ 10x simpler and safer , and I presented my own incomplete experimental compiler, cppfront.

C++ 83

C++ Efficiency Design Virtualization 83

The Netflix TechBlog

NOVEMBER 9, 2022

Thread 0’s cache in this example. Drilling down into “hot” methods and further into the assembly code showed us blocks of code with some instructions exceeding 100 CPI, which is extremely slow. Resolving coherency across private caches takes time and causes CPU stalls.

Hardware 363

Hardware Cache Performance Latency 363

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

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 116

Code Tuning C++ Benchmarking 116

Sutter's Mill

JUNE 4, 2024

I gave this talk, which is now up on YouTube here: It’s an evolved version of my March essay “C++ safety, in context.” One correction to the talk: I looked back at my code and I had indeed been making the mistake of creating a new std::regex object for each use, so that accounted for some of the former poor performance.

C++ 72

C++ Code Performance 72

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

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 213

Best Practices C++ Code Availability 213

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

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++ 84

C++ Virtualization Benchmarking Database 84

Dynatrace

OCTOBER 2, 2024

Tool consolidation is becoming a priority for C-level decision-makers in 2025. The show surrounding logs function provides Dynatrace users with the ability to dive deeper and surface context-specific log lines of the components and services linked to the problem—all without a single line of code or complex query language knowledge.

Analytics 248

Analytics AWS DevOps Cloud 248

Dynatrace

AUGUST 29, 2024

Critical data includes the aircraft’s ICAO identifier , squawk code, flight callsign, position coordinates, altitude, speed, and the time since the last message was received. In our example, the ADS-B application provides an excellent visual representation for short-term live monitoring purposes.

IoT 223

IoT Analytics Transportation Metrics 223

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++ 75

C++ Virtualization Code Design 75

Dynatrace

JULY 12, 2022

The platform might identify, for example, that a SQL database “leverages [a particular] node when we do our Tlog [transaction log] backups,” he says. “We IT automation speeds code development. To do so, organizations often succumb to a “hamster wheel” of having to release code more quickly to innovate effectively.

Innovation 230

Innovation Infrastructure DevOps Azure 230

Sutter's Mill

NOVEMBER 24, 2024

On Saturday, the ISO C++ committee completed the third-last design meeting of C++26, held in Wrocaw, Poland. There are just two meetings left before the C++26 feature freeze in June 2025, and C++26 is on track to be completed two more meetings after that in early 2026. is the nutshell synopsis. Thank you, Hana!

C++ 61

C++ Code Education Design 61

Dynatrace

JUNE 1, 2022

As a result, C-level executives say that cloud environments have bolstered cybersecurity challenges. Further, software development in multicloud environments introduces multiple coding languages and third-party libraries. According to the Dynatrace CISO report, organizations still lack the insight they need to monitor this code.

Artificial Intelligence 192

Artificial Intelligence Java Strategy Cloud 192

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

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

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 216

Technology Technology Artificial Intelligence Analytics 216

SQL Performance

MAY 13, 2020

For example, the expression can be a table value constructor, as I will explain later in this article. Here are just a few examples for use cases that come to mind: Create a modular solution by breaking down complex tasks into steps, each represented by a different table expression. C is what's known as a range variable.

C++ 143

C++ Code Design Servers 143

Sutter's Mill

JULY 29, 2024

Safety and simplicity are the two core things I want to try to dramatically improve in C++, and are why I’m doing my cppfront experiment, so although the above absorbed some time away from cppfront coding it all contributes to the same goal. (If Jul 10, 2024), new things include: Added. Jul 10, 2024), new things include: Added.

C++ 100

C++ Lambda Code Open Source 100

Dynatrace

DECEMBER 14, 2021

I could upgrade the vehicle in the app, or simply get in the car and use the QR code to exit the garage. Here’s an example of a simple business impact dashboard highlighting key guest tasks. I tried a few times, then – as a last resort – I called the customer service number, but wait times were “longer than normal.”

Airlines 235

Airlines Social Media Entertainment Transportation 235

Brendan Gregg

OCTOBER 28, 2024

Here is an example: Simple example: SYCL matrix multiply microbenchmark (Click for interactive SVG.) The gray "-" frames just help highlight the boundary between CPU and AI/GPU code. A daily tool for developers, with most of the visualization in the language of the developer : source code functions.

Programming 130

Programming Hardware Tuning C++ 130

Brendan Gregg

NOVEMBER 4, 2020

As an example, I ported over my opensnoop(8) tool: #./opensnoop. The BCC tools should eventually be switched from Python to libbpf C under the hood, but will work the same. My [BPF Performance Tools] book focused on running BCC tools and coding in bpftrace, and that doesn't change. Apologies for the inconvenience.

C++ 143

C++ Programming Storage Code 143

CSS Wizardry

NOVEMBER 3, 2020

For example, my site has a homepage, content pages (e.g. I want to be able to form hypotheses and draw conclusions without viewing a single URL or a line of source code. All of this information gleaned without having to visit a single page or view a single line of source code. That work is what comes next. Final Word.

Speed 328

Speed Ecommerce Metrics Analytics 328