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

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

Dynatrace

MAY 29, 2024

To address this challenge, the Dynatrace App Toolkit allows you to create custom workflow actions, providing seamless integration with third-party systems. IDE or text editor of your choice (VS Code recommended) Now, consider your use case! In our example, we will call the app awattar-actions. What do you wish to automate?

Best Practices 154

Best Practices C++ Code Availability 154

Particular Software

MAY 8, 2023

When code breaks, our first move is carefully inspecting the call stack. However, in a message-based system, we no longer have a single call stack. The problem Because message-driven systems are asynchronous and run in multiple processes, debugging is naturally more complex than in a single-process application.

Systems 52

Systems C++ Azure Metrics 52

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 208

Technology Technology Artificial Intelligence Analytics 208

Dynatrace

APRIL 24, 2019

The most common example is when the IIS default application pool is used for deploying a web site instead of using a dedicated pool. For small deployments, it isn’t a problem however when scaling up to hundred or even thousands of systems things can become complicated. Let’s extend our example. Let’s look at another example.

Systems 125

Systems Tuning C++ Processing 125

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

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. 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.

Mobile 82

Mobile Testing Hardware C++ 82

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. As organizations train generative AI systems with critical data, they must be aware of the security and compliance risks.

Artificial Intelligence 235

Artificial Intelligence Cloud Best Practices DevOps 235

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

Percona

DECEMBER 15, 2023

The system will generate error codes if they try to delete users which they did not create. In previous releases, a user with the CREATEROLE attribute has access to all predefined system roles, including highly privileged roles like pg_execute_server_program and pg_write_server_files.

C++ 90

C++ Database Open Source Systems 90

Brendan Gregg

DECEMBER 31, 2018

In summary: - Beginner: run [bcc] tools - Intermediate: develop [bpftrace] tools - Advanced: develop [bcc] tools, contribute to bcc & bpftrace Update: I have a new book about eBPF tracing, published by Addison Wesley: [BPF Performance Tools: Linux System and Application Observability]. People will use it and code in it via frameworks.

C++ 52

C++ Virtualization Programming Code 52

The Morning Paper

NOVEMBER 12, 2019

Scaling symbolic evaluation for automated verification of systems code with Serval Nelson et al., Serval is a framework for developing automated verifiers of systems software. Serval enables us, with a reasonable effort, to develop multiple verifiers, apply the verifiers to a range of systems, and find previously unknown bugs.

Code 45

Code Systems Programming Google 45

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

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

APRIL 11, 2023

Log4Shell required many organizations to take devices and applications offline to prevent malicious attackers from gaining access to IT systems and sensitive data. As a result, organizations need to be vigilant in identifying and addressing vulnerabilities to protect their systems and data.

Cloud 192

Cloud DevOps Open Source Retail 192

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

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 224

Innovation Infrastructure DevOps Azure 224

SQL Performance

JULY 13, 2022

This could also happen if you need to migrate code written for another database platform with a different dialect of SQL to T-SQL. At the time of writing, T-SQL doesn’t support it, but PostgreSQL—for example—does. In my examples, I’ll use a table called Orders. L0 AS ( SELECT 1 AS c. Sample Data.

C++ 112

C++ Code Azure Database 112

The Netflix TechBlog

NOVEMBER 9, 2022

a contiguous chunk of data (typically 64 bytes on x86 systems) transferred to and from the cache. 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.

Hardware 363

Hardware Cache Performance Latency 363

SQL Performance

SEPTEMBER 21, 2022

One example is using a bitwise representation of a set of user/role permissions. Another example is using a bitwise representation of a set of settings turned on or off in a given environment. For example, the ARITHABORT session option is represented by bit offset 6 in the bitmap returned by the @@options function.

Servers 122

Servers C++ Code Cache 122

HammerDB

MAY 26, 2022

You may want to become familiar with all the underlying source code in C or wish to build a distribution where you can verify every single line of source code that goes into HammerDB. X Linux, with the following example from Red Hat Linux. What programming languages does HammerDB use and why does it matter? linux-glibc2.12-x86_64/bin

C++ 113

C++ Database Open Source Servers 113

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 294

Cloud Open Source Internet Internet 294

Percona

DECEMBER 29, 2022

While working as a DBA, we perform many regular tasks, and one of them is upgrading our database systems. In this blog post, I will show you a particular example I faced when working with an upgrade exercise using pg_upgrade. These are not in this blog’s scope to keep this example simple. Example case.

C++ 81

C++ Open Source Database Programming 81

ACM Sigarch

OCTOBER 12, 2020

These, let’s call them metal languages , include FORTRAN (introduced in 1957), C (1972), and C++ (1985). Programmers continue to write applications in them, and they continue to evolve: the just approved C++20 standard is the latest example. Despite their age, these languages are far from dead! As Leiserson et al.

C++ 108

C++ Benchmarking Hardware Architecture 108

Dynatrace

JULY 18, 2022

Users can add the APIs manually to their code to define exactly what needs to be measured and monitored continuously after the code is deployed for maintenance purposes. The reference architecture works with C++,NET, Erlang/Elixir, Go, Java, PHP, Python, Ruby, Rust, and Swift — with support for additional languages to come.

Artificial Intelligence 198

Artificial Intelligence Open Source Analytics Monitoring 198

O'Reilly

APRIL 25, 2023

This post is a brief commentary on Martin Fowler’s post, An Example of LLM Prompting for Programming. At a glance, it’s clear that the prompts Xu Hao uses to generate working code are very long and complex. First, note the overall strategy Xu Hao uses to write this code. That excitement is merited. His first prompt is very long.

Programming 129

Programming Architecture Strategy Code 129

Dynatrace

DECEMBER 14, 2021

I lost an entire day due to an IT system problem that nobody noticed. I could upgrade the vehicle in the app, or simply get in the car and use the QR code to exit the garage. The hotel’s rental subsidiary limits their IT monitoring to internal system metrics, with no visibility into user journeys or business transactions.

Airlines 227

Airlines Social Media Entertainment Transportation 227

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. Here, memory is divided into equal sizes of partitions where the code of a program resides. ” Below is a line of code that results in a segmentation fault on PostgreSQL 13.4

Programming 81

Programming C++ Database Virtualization 81

O'Reilly

AUGUST 9, 2022

GitHub Copilot (based on a model named Codex , which is derived from GPT-3) generates code in a number of programming languages, based on comments that the user writes. Going in the other direction, GPT-3 has proven to be surprisingly good at explaining code. But it’s obvious where this is trending. But I don’t know if that’s true.

Programming 104

Programming Java C++ Design 104

Brendan Gregg

NOVEMBER 4, 2020

As an example, I ported over my opensnoop(8) tool: #./opensnoop. PID COMM FD ERR PATH 27974 opensnoop 28 0 /etc/localtime 1482 redis-server 7 0 /proc/1482/stat 1657 atlas-system-ag 3 0 /proc/stat […]. The BCC tools should eventually be switched from Python to libbpf C under the hood, but will work the same. linux-vdso.so.1

C++ 145

C++ Programming Storage Code 145

Percona

APRIL 3, 2023

In this blog, we will upgrade PG10, which has tables with OID columns and some extensions to PG13, as an example, using the native pg_upgrade utility. Object identifiers (OIDs) are used internally by PostgreSQL as primary keys for various system tables. Type OID represents an object identifier.

C++ 99

C++ Cache Database Storage 99

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

Brendan Gregg

JULY 30, 2017

I recently improved flame graph code coloring. Code-type coloring was a regex hack that took five minutes. In late 2014 I was modifying the JDK to preserve the frame pointer so that traditional stack walkers and profilers would work (an example of the problem is here , where Java methods lack ancestry). And that's what I coded.

Code 40

Code Java C++ Website 40

Testlodge

MARCH 15, 2023

White box testing is a software testing approach based on an analysis of the internal structure of the component or system. 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.

Testing 83

Testing Testing Tools Java Programming 83