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. The Problem.

C++ 111

C++ Code Testing 111

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

High Scalability

FEBRUARY 17, 2021

An application example is a session store recording recent actions. Application example: photo tagging; add a tag is an update, but most operations are to read tags. Workload C: Read only. Application example: user profile cache, where profiles are constructed elsewhere (e.g., Workload A: Update heavy workload.

Benchmarking 308

Benchmarking Latency C++ Database 308

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

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

DZone

SEPTEMBER 15, 2021

NUnit is a popular open-source unit testing framework for C#. In this NUnit Testing Tutorial, we look at the NUnit setup example of the environment for developing and executing NUnit tests. NUnit eases automation testing with C# as it is compatible with automation test suites such as Selenium.

C++ 231

C++ Open Source Speed Testing 231

High Scalability

JANUARY 11, 2022

Subsequently, the data entities C and D denote the different actions which users may take. The entity C denotes the event where a user likes a post and entity D denotes the action when a user follows another user. For example, one user is a close follower of Elon Musk while another user can be a close follower of Gordon Ramsay.

Design 334

Design Media Storage Logistics 334

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

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 11, 2022

In semi-supervised anomaly detection models, only a set of benign examples are required for training. false-positive incidents), for example in the case of a buggy client or device. Given a labeled dataset, a supervised anomaly detection model can be built to distinguish between anomalous and benign incidents.

C++ 323

C++ Metrics Tuning Strategy 323

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

Sutter's Mill

JULY 25, 2019

For example, “pattern matching” had multiple papers, so I wanted to generate a subtotal also for votes for “all pattern-matching papers” as well as for each of the individual ones. The following are some highlights. The results may not be representative.

C++ 98

C++ Programming Network Efficiency 98

CSS Wizardry

AUGUST 14, 2024

Let’s look at two examples of putting blocking=render to use. This is one of the least compelling examples, in my opinion. important } ( function ( a , s , y , n , c , h , i , d , e ) { s. end = null }, c ); h. timeout = c ; }); ( window , document. className += ' ' + y ; h. start = 1 * new Date ; h. className = s.

C++ 260

C++ Testing Tools Government Testing 260

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.” Thanks very much to everyone who has contributed to C++ safety improvement explorations, and everyone who has helped with Cppfront over the past year and a half since I first announced the project!

C++ 72

C++ Code Performance 72

The Netflix TechBlog

MARCH 7, 2024

The user can choose the most suitable tool for manipulating data, such as Pandas or Polars to use a dataframe API, or one of our internal C++ libraries for various high-performance operations. Example use case: Building model explainers Here’s a fascinating example of the usefulness of portable execution environments.

Systems 238

Systems Media Cache Open Source 238

Dynatrace

JANUARY 17, 2023

OpenTelemetry SDKs are available for most contemporary programming languages, such as C++, Go, Java, JavaScript, and Python (see [link] for the full list). This example is a good starting point for exploratory analysis with context-aware Dynatrace Davis insights. order fulfillment, as well as a drop in fulfillment.

Analytics 293

Analytics Metrics Open Source Java 293

Dynatrace

JUNE 13, 2019

Dynatrace has long provided SDKs for custom instrumentation where automatic instrumentation isn’t possible or feasible, for example with native technologies like C/C++, proprietary protocols and frameworks, or IoT environments. How Dynatrace OneAgent integrates OpenTelemetry.

IoT 48

IoT C++ Analytics Java 48

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. With the HammerDB v4.5 In HammerDB v4.6 With HammerDB v4.7 With HammerDB v4.7

C++ 84

C++ Virtualization Benchmarking Database 84

Sutter's Mill

NOVEMBER 12, 2022

A few minutes ago, the ISO C++ committee completed its second-to-last meeting of C++23 in Kona, HI, USA. Our host, the Standard C++ Foundation, arranged for high-quality facilities for our six-day meeting from Monday through Saturday. An example of a comment we just approved is adopting the proposal from Nicolai Josuttis et al.

C++ 76

C++ Virtualization Testing 76

Dynatrace

MARCH 12, 2024

The business process observability challenge Increasingly dynamic business conditions demand business agility; reacting to a supply chain disruption and optimizing order fulfillment are simple but illustrative examples. They deliver the real-time precision needed for confident data-driven business decisions.

Processing 262

Processing Monitoring Analytics C++ 262

HammerDB

DECEMBER 10, 2024

More than ever, we see confusion in interpreting and comparing the performance of databases with workloads derived from the TPC-Council’s TPC-C specification, including HammerDB’s TPROC-C NOPM and TPM. Importantly, TPC-C and tpmC are registered trademarks of the TPC-Council.

C++ 58

C++ Benchmarking Hardware Performance 58

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

Percona

FEBRUARY 16, 2023

I asked ChatGPT the question: “C an we backup and then remove the keyring file used for encryption at rest plugin after MySQL starts? ” We can verify that through the following example: We started MySQL with the configuration of “ early-plugin-load=keyring_file.so

Database 123

Database Servers Engineering Testing 123

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. Here’s an example demonstrating this: SELECT custid , country FROM Sales. WHERE country = N'USA'. )

C++ 140

C++ Code Design Database 140

Testsigma

FEBRUARY 3, 2021

Example: Let’s take an example of an e-commerce mobile app. Example: We are considering the same e-commerce app example, a small unit like ‘login’ may be tested during the unit testing. Example: Here, we test the integration of two or more modules like- from cart to make a payment module. Reference: [link].

Mobile 82

Mobile Testing Hardware C++ 82

Dynatrace

NOVEMBER 11, 2022

Getting the information and processes in place to ensure alerts like this example can be organizationally difficult. For timely and effective root cause analysis when an issue occurs, it is critical that you have access to certain information, for example, the following: What went wrong? For example: Releases. Who performed it?

DevOps 193

DevOps C++ Serverless Processing 193

Dynatrace

DECEMBER 8, 2020

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. For example, a test library is never deployed to production.

Cloud 298

Cloud Open Source Internet Internet 298

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. In our example, we will call the app awattar-actions. and fetch-data.widget.ts ).

Best Practices 213

Best Practices C++ Code Availability 213

Dynatrace

OCTOBER 2, 2024

Tool consolidation is becoming a priority for C-level decision-makers in 2025. For example, deleting the database is not an expected outcome when the function provided is to update a user profile. Existing siloed tools lead to inefficient workflows, fragmented data, and increased troubleshooting times. Figure 11.

Analytics 248

Analytics AWS DevOps Cloud 248

Dynatrace

AUGUST 29, 2024

In our example, the ADS-B application provides an excellent visual representation for short-term live monitoring purposes. Here is an example of the formula written in DQL: Figure 11. Default web view of flights tracked by dump1090 Why observability and data ingestion? IoT devices are not meant to store data for longer periods.

IoT 223

IoT Analytics Transportation Metrics 223

Speed Curve

APRIL 27, 2022

In the example below, FCP can be delayed by up to four seconds (the default in the snippet example).async-hide hide = h; setTimeout(function() { I(); h.end = null }, c); h.timeout = c; } )(window, document.documentElement, 'async-hide', 'dataLayer', 4000, { 'GTM-XXXXXX': true }); ? async-hide { opacity: 0 !important

Performance 145

Performance C++ Google Retail 145

The Netflix TechBlog

JUNE 4, 2019

For example if we predict that container A is going to become very CPU intensive soon, then maybe we should run it on a different NUMA socket than container B which is very latency-sensitive. As an illustrative example, let’s consider a toy instance of 16 hyperthreads. It has 8 physical hyperthreaded cores, split on 2 NUMA sockets.

Cache 260

Cache Latency Airlines Logistics 260

Dynatrace

APRIL 4, 2023

For example, most monitoring solutions are deployed piecemeal or simply don’t support integration with other critical systems. But a simple status update can be hard to provide for a non-IT pro, like many folks in C-level positions who aren’t familiar with the details of application resilience.

Education 227

Education Monitoring C++ Design 227

Dynatrace

DECEMBER 14, 2021

Here’s an example of a simple business impact dashboard highlighting key guest tasks. These user journey views provide early warning to unexpected sources of user frustration; in my airline example, the airline would have been alerted to abandons at the voucher step correlated with my rage clicks.

Airlines 235

Airlines Social Media Entertainment Transportation 235

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

SQL Performance

MAY 24, 2022

I’ll be using the sample database TSQLV6 in the examples in this article. As an example where the WINDOW clause can be handy in shortening your code, consider the following query: USE TSQLV6 ; SELECT orderid , custid , orderdate , qty , val , SUM ( qty ) OVER ( PARTITION BY custid. The WINDOW Clause.

Servers 145

Servers C++ Code Database 145

Dynatrace

OCTOBER 12, 2023

>> Scroll down to see Dynatrace DPL Architect in action (24-second video) Investigating log data with the help of DQL Let’s look at a practical example. Or, the log format where the answers should be looked for is more complex (for example, AWS CloudTrail logs ). If a CISO asks, “Have we seen the IP address 40.30.20.1

Speed 217

Speed AWS C++ Availability 217