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

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

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 280

Analytics Metrics Open Source Java 280

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 203

Technology Technology Artificial Intelligence Analytics 203

Dynatrace

OCTOBER 12, 2023

This tool lets you quickly extract typed fields from unstructured text (such as log entries) using the Dynatrace Pattern Language (DPL), enabling you to extract timestamps, determine status codes, identify IP addresses, or work with real JSON objects. This allows you to answer even the most complex questions with ultimate precision.

Speed 207

Speed AWS C++ Availability 207

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

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

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

Dynatrace

JUNE 7, 2023

Our example dashboard below visualizes OpenAI token consumption. It shows critical SLOs for latency and availability, as well as the most important OpenAI generative AI service metrics, such as response time, error count, and the overall number of requests. OneAgent can automatically monitor all C#,NET, Java, Go, and NodeJS bindings.

Monitoring 164

Monitoring Latency Metrics Azure 164

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. This clause allows you to shorten your code by avoiding the repetition of identical parts of your window specifications.

Servers 145

Servers C++ Code Database 145

Sutter's Mill

APRIL 3, 2023

This time, we chatted about news in the C++ world, and then about my Cpp2 and cppfront experimental work. Thanks to Timur Doumler and Phil Nash for inviting me on their show – and for continuing CppCast, which was so wonderfully founded by Rob Irving and Jason Turner !

C++ 86

C++ Programming Design Code 86

Particular Software

SEPTEMBER 27, 2022

Before the introduction of the Heap Allocation Viewer for Jetbrains Rider or Clr Heap Allocation Analyzer for Visual Studio you’d have to either decompile the code or attach a memory profiler and watch out for various *__DisplayClass* , Action* or Func* allocations. <Main>b__1)); In the generated code, we can spot two allocations.

Lambda 98

Lambda C++ Benchmarking Code 98

Percona

JULY 19, 2023

Well, “easy” if you know just a tiny bit of C++. Our function will implement a ULID generator using a C++ library from ChrisBove/ulid. Creating the build environment The first step is downloading the source code to MySQL / Percona Server for MySQL 8.0.32 , then extracting the tarball. $ cd ~/percona-server-8.0.32-24/plugin/ulid/

C++ 82

C++ Servers Benchmarking Best Practices 82

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. Inside the memory, they can be allocated any available space. Here, memory is divided into equal sizes of partitions where the code of a program resides.

Programming 86

Programming C++ Database Virtualization 86

SQL Performance

JULY 13, 2022

But sometimes a tool you need isn’t available, and you have to figure out a solution without it. Sometimes, you need to solve a T-SQL querying task, and you know the natural tool to solve it is a feature that’s part of the SQL standard but isn’t available in T-SQL. In my examples, I’ll use a table called Orders. Sample Data.

C++ 112

C++ Code Azure Database 112

Percona

APRIL 21, 2023

Orchestrator is a MySQL high availability and replication management tool that runs as a service and provides command line access, HTTP API, and Web interface. Below is my current topology: [root@monitor ~]# orchestrator-client -c topology-tabulated -alias testcluster | tr '|' 't' 192.168.56.10:3306 3306 0s ok 5.7.41-44-log

C++ 87

C++ Monitoring Database Open Source 87

Scalegrid

JUNE 18, 2019

for this example. The Ruby version used in both the examples below is 2.6.3. The connection options available for the driver are documented here , and the options we will need are: :ssl. servers.mongodirector.com:27017,SG-example-17027.servers.mongodirector.com:27017,SG-example-17028.servers.mongodirector.com:27017/test?

C++ 100

C++ Servers Database Network 100

SQL Performance

MAY 11, 2022

In my examples, I’ll use the sample database PerformanceV5. You can download the source code to create and populate this database here. I ran all the examples on SQL Server ® 2019 Developer, where batch-mode on rowstore is available. For simplicity’s sake, you can prevent parallelism in all examples shown in this article.

C++ 133

C++ Database Servers Code 133

Dynatrace

DECEMBER 14, 2021

The airline : My preferences for a recent long-haul flight included price and the availability of aisle seats. 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.

Airlines 222

Airlines Social Media Entertainment Transportation 222

Daniel Lemire

MARCH 18, 2019

That is the case, for example, of a Roaring bitmap. In C or C++, you can safely convert from a stream of bytes to in-memory values using a function like ‘memcpy’ It is fast. My code is available. Many serialized data structures can be viewed as sets of ‘integer’ values. length ; k + + ).

Java 124

Java C++ Code Speed 124

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. One has to do with the comment about ordering.

C++ 143

C++ Code Design Servers 143

Testlodge

MARCH 15, 2023

Internal structure may include code, architecture, integrations, and data flows of a system. The more code is tested, the less likely it is to have defects, and any defects found will have less severity. Suppose developers perform unit testing before delivering code to testers. Why is White Box Testing Performed?

Testing 83

Testing Testing Tools Java Programming 83

SQL Performance

AUGUST 1, 2022

I’ll be using the sample database TSQLV6 in the examples in this article. If you’ve been writing and optimizing T-SQL code for a while, you’re probably well aware of the many complexities involved with NULL handling. For example, suppose that prior to SQL Server 2022 you had the following query: SELECT. The Distinct Predicate.

Servers 142

Servers Testing C++ Code 142

Daniel Lemire

FEBRUARY 19, 2019

I expect that the compiler will turn this code into a sequence of instructions over 32-bit registers: uint32_t compilermod32 ( uint32_t a ) {. My source code is available. For example, on ARM and POWER processors, the division instruction does beat some compilers. return a % D ; }. uint32_t directmod64 ( uint32_t a ) {.

Benchmarking 138

Benchmarking C++ Games Code 138

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. Additionally, reviewing official TPC-C full disclosure reports highlighted that all vendors also use stored procedures.

Benchmarking 62

Benchmarking Database Network C++ 62

Dynatrace

NOVEMBER 8, 2021

Organizations use APM to ensure system availability, optimize service performance and response times, and improve user experiences. By carefully considering the various APM tools available and how well they meet your needs, you’ll have the best chance of picking the right one for your organization. APM solutions: A primer.

Artificial Intelligence 232

Artificial Intelligence Monitoring Infrastructure Cloud 232

Sutter's Mill

JANUARY 11, 2021

Assertions have been a foundational tool for writing understandable computer code since we could write computer code… far older than C’s assert() macro, they go back to at least John von Neumann and Herman Goldstine (1947) and Alan Turing (1949). 1,2] How well do we understand them… exactly? GUIDELINE: Assert liberally. [3]

C++ 58

C++ Programming Code Testing 58

Dynatrace

DECEMBER 14, 2021

The airline : My preferences for a recent long-haul flight included price and the availability of aisle seats. 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.

Airlines 188

Airlines Social Media Entertainment Transportation 188

Official Blog - World Web Technology

AUGUST 27, 2023

For example, website design is very crucial to impress your website visitors. Unlike other popular programming languages such as C or Pearl, PHP pages have HTML with embedded code with some start and end processing instructions that allow you to jump directly into and out of PHP mode.

Development 98

Development Ecommerce Open Source Website 98

Sutter's Mill

JUNE 3, 2021

Briefly, what is the difference among: (a) undefined behavior Undefined behavior is what happens when your program tries to do something whose meaning is not defined at all in the C++ standard language or library (illegal code and/or data).

C++ 54

C++ Programming Lambda Code 54

Testsigma

MARCH 23, 2022

“ Open ” is a synonym for available, accessible, and transparent. “ Source ” stands for the source code or design. In short, Open Source is any solution/program/project whose source code is freely available for use or modification from the original design. Examples include: a. Python ii.

Open Source 76

Open Source C++ Programming Education 76

Sutter's Mill

APRIL 30, 2012

At GoingNative in February , I emphasized the need for more modern and portable C++ libraries, including for things like RESTful web/cloud services, HTTP, JSON, and more. The goal is to find or develop modern C++ libraries that leverage C++11 features, and then submit the best for standardization.

C++ 43

C++ Azure Programming Cloud 43

The Netflix TechBlog

APRIL 17, 2019

What does this example have to do with software development and video encoding? On the other hand, there are examples of video codecs developed by companies, such as Microsoft’s VC-1 and Google’s VPx codecs. An example of such development is the x264 encoder that has been improving years after the H.264

Open Source 166

Open Source Scalability Speed Efficiency 166

Adrian Cockcroft

JANUARY 29, 2023

The common way to deal with this is to measure percentiles, and track the 90%, 99% response times for example. For example lets say you have a 99% within 2 seconds SLA, and your current 99%ile measured over one minute is 1 second. However it’s very difficult to decide what the right SLA is, or to tell how close you are to exceeding it.

Lambda 98

Lambda Latency Cache C++ 98

SQL Performance

FEBRUARY 12, 2020

I'll continue using the sample database TSQLV5 like last month in some of my examples. Let's apply the DISTINCT predicate to the examples we used in Part 1 in the series. According to the standard, you would use the following code with the DISTINCT predicate to handle this need: SELECT orderid , shippeddate FROM Sales.

C++ 120

C++ Code Servers Database 120

Sutter's Mill

FEBRUARY 23, 2020

This post is an attempt to shed light on this situation, and perhaps reduce some of the time spent on unresolved ongoing design debates in the C++ community. Edited to add: mention the core language specification complexity, and that the list of examples is not exhaustive and other examples fall into the same categories as listed examples.

C++ 75

C++ Lambda Games Design 75

Percona

OCTOBER 3, 2023

There is no need to explicitly disable THP defragmentation since its code path will not be triggered when THP is disabled in this way. Try Percona Distribution for MySQL today!

Database 91

Database Servers Open Source C++ 91