HammerDB

APRIL 19, 2023

Predicting application performance is a difficult art, but an important one when choosing the target deployment environment. In this blog, we aim to call out some key considerations when trying to assess MySQL performance for your application. Instead, readers should refer to the HammerDB documentation.

Performance 54

Performance Benchmarking Cache Storage 54

Percona

MARCH 13, 2023

There is a section in our Documentation ( Introduction to Serverless PostgreSQL ) and a short overview of the primary components: Page Server The storage server with the primary goal of storing all data pages and WAL records Safe Keeper A component to store WAL records in memory (to reduce latency). 6400'" -c "listen_http_addr='0.0.0.0:9898'"

Serverless 120

Serverless C++ Storage Latency 120

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Percona

DECEMBER 29, 2022

While working as a DBA, we perform many regular tasks, and one of them is upgrading our database systems. There are some techniques to perform a PostgreSQL database upgrade, such as data dump and import, logical replication, or in-site upgrade using pg_upgrade. If all is good, perform the upgrade removing the –check flag.

C++ 83

C++ Open Source Database Programming 83

Official Blog - World Web Technology

AUGUST 27, 2023

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. In PHP, code is directly executed on the server and generates HTML to send to the client.

Development 98

Development Ecommerce Open Source Website 98

Dynatrace

FEBRUARY 15, 2023

Data lakehouse enables exploratory analytics and interactive data sharing This new UX powers Dynatrace Notebooks, an interactive document capability that allows IT, development, security, and business users to collaborate using code, text, and rich media to build, evaluate, and share insights from exploratory, causal-AI analytics projects.

Analytics 130

Analytics Government Media C++ 130

SQL Performance

SEPTEMBER 5, 2019

This article explores the batch data normalized representation, explains why not all eight-byte data types can fit within 64 bits, and shows an example of how all this affects batch-mode performance. c = COUNT_BIG ( * ) FROM #T AS T WHERE 1 = ( SELECT 1 ) -- Avoid trivial plan. c1 = @Start + N. FROM #Numbers AS N ; GO.

Performance 81

Performance C++ Storage Servers 81

Dynatrace

NOVEMBER 8, 2021

Application performance monitoring (APM) solutions have evolved in recent years, and organizations now have plenty of options to choose from when selecting the right tools for their needs. APM solutions track key software application performance metrics using monitoring software and telemetry data. Dynatrace news.

Artificial Intelligence 229

Artificial Intelligence Monitoring Infrastructure Cloud 229

SQL Performance

AUGUST 12, 2020

You can find it in the documentation of Microsoft SQL Server and Azure SQL Database. What’s different about the design of CTEs compared to derived tables is where in the code these three elements are located. However, there are very few cases in T-SQL where without a terminator the code is ambiguous.

C++ 140

C++ Code Design Database 140

Percona

OCTOBER 17, 2023

When multiple operations, such as reads and writes, attempt to access the database concurrently, WiredTiger uses tickets to ensure these operations do not conflict in a way that would compromise data integrity or performance. db.collection.checkMetadataConsistency() // Performs consistency checks on sharding metadata for the collection.

Metrics 104

Metrics C++ Storage Database 104

SQL Performance

SEPTEMBER 21, 2022

For the full technical details, I provided links to the official documentation. Use the following code to check the status of this option in your session: SELECT GET_BIT ( @@OPTIONS , 6 ) ; The ARITHABORT option was enabled in the session where I ran this code, so I got the following output: -- 1. GET_BIT and SET_BIT.

Servers 122

Servers C++ Code Cache 122

Scalegrid

FEBRUARY 15, 2024

MongoDB® SSL with Self-Signed Certificates in C# Configuring MongoDB Server for SSL/TLS Encryption Once your certificates are ready, the next step is configuring the MongoDB server for SSL/TLS encryption, allowing you to securely connect to MongoDB. Please refer to the documentation of your driver for more details.

Servers 130

Servers Best Practices Government Network 130

Testlodge

MARCH 15, 2023

Internal structure may include code, architecture, integrations, and data flows of a system. Why is White Box Testing Performed? Testers perform white box testing for several reasons. 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

Brendan Gregg

JANUARY 1, 2019

It can be used for many things: network performance, firewalls, security, tracing, and device drivers. Some of these have plenty of free documentation online, like for tracing, and others not yet. The term tracing refers to performance analysis and observability tools that can produce per-event info. It's the same with eBPF.

C++ 111

C++ Virtualization Programming Code 111

Smashing Magazine

NOVEMBER 26, 2021

However, there are a few ways in which you can make a large code-base easy to maintain. In certain cases, the build will fail if there are type mismatches in your code as Next.js We recommend using code editor type checking during development.”. Use Code Generators Like Hygen To Generate Boilerplate Code.

Cache 143

Cache Code Testing Design 143

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). By definition, if a function’s preconditions are violated, then the results are not specified.

C++ 54

C++ Programming Lambda Code 54

Sutter's Mill

FEBRUARY 17, 2020

C++ “move” semantics are simple, and unchanged since C++11. Move: What it is, and how to use it In C++, copying or moving from an object a to an object b sets b to a ’s original value. Can a given type document that moving from an object always changes its state? Yes, but don’t.

C++ 98

C++ Testing Design Strategy 98

Testlodge

JULY 19, 2023

SOX compliance testing validates changes made to code and verifies adherence to internal controls. Testers are responsible for testing code changes to ensure accuracy. J-SOX and C-SOX are the Japanese and Canadian equivalents, respectively. The most important part of SOX compliance testing is accuracy and documentation.

Testing 81

Testing Energy Programming Government 81

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

SQL Performance

OCTOBER 9, 2019

The relevance to T-SQL is that sometimes we assume that we know everything there is to know about certain T-SQL features, and don't always bother checking the documentation to see if there's more to them. Here's the [fully documented] syntax of the function: EOMONTH ( start_date [, month_to_add ] ). That's pretty neat! BEGIN. .' ; /*.

C++ 111

C++ Database Servers Code 111

Daniel Lemire

FEBRUARY 19, 2019

To get good results, we can use an important insight that is not documented anywhere at any length: we can use 64-bit processor instructions to do 32-bit arithmetic. 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.

Benchmarking 138

Benchmarking C++ Games Code 138

Alex Russell

MAY 9, 2022

Despite advances in browser tooling , automated evaluation , lab tools , guidance , and runtimes , however, teams struggle to deliver even decent performance with today's popular frameworks. What is Performance? It may seem a silly question, but what is performance, exactly?

Performance 86

Performance Latency Metrics Engineering 86

SQL Performance

SEPTEMBER 25, 2019

Performance spools are lazy spools added by the optimizer to reduce the estimated cost of the inner side of nested loops joins. An example plan shape showing a lazy table performance spool is below: The questions I set out to answer in this article are why, how, and when the query optimizer introduces each type of performance spool.

Performance 104

Performance Cache Servers Education 104

Smashing Magazine

JUNE 2, 2021

Improving The Performance Of An Online Store (Case Study). Improving The Performance Of An Online Store (Case Study). Every front-end developer is chasing the same holy grail of performance: green scores in Google Page Speed. For this article, we will focus on the first three and the performance adjustments for these.

Performance 115

Performance Cache Website Mobile 115

HammerDB

NOVEMBER 30, 2022

If you need a different version of Python you can build HammerDB from source as detailed in the documentation to use any version of Python 3 that you wish. Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. Red Hat Enterprise Linux. Starting the CLI in Python Mode. Use a different Browser. $./hammerdbcli

Virtualization 44

Virtualization C++ Lambda Monitoring 44

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

SQL Performance

JULY 1, 2021

t2 ( id bigint IDENTITY PRIMARY KEY , msg ntext ) ; Now, let's try to perform online operations on the tables: ALTER TABLE dbo. An online operation cannot be performed for index 'PK__t2__3213E83FEEA1E0AD' because the index contains column 'msg' of data type text, ntext, image or FILESTREAM. name , [ Column ] = c.

C++ 58

C++ Database Servers Performance 58

CSS Wizardry

NOVEMBER 3, 2020

A couple of years ago, my first few days on a new web performance project were always slow going. Unless a client hires you to specifically improve the performance of one page, you’ll need a broad view of the whole site or application. All through no fault of the client or the project, but through huge flaws in my own approach.

Speed 292

Speed Ecommerce Metrics Analytics 292

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here. What is HammerDB? Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Percona

JUNE 7, 2023

Triggers on Data Definition Language (DDL) events are a powerful feature of PostgreSQL that allows you to perform additional actions in response to changes to the database schema. Let’s see an example that throws an error if the table name does not start with ‘tbl_’ Similar code can be developed for any object.

Database 77

Database Best Practices Open Source C++ 77

Enprowess

NOVEMBER 2, 2021

Know the difference between Flutter vs React Native in terms of architecture, performance, community support, learning curve, use cases and many other aspects. Performance comparison. Code Maintainability. Bloomberg – Efficient, simple-to-access, personalized content for end-users with automatic code refreshing options.

Development 52

Development Social Media Mobile Code 52

SQL Performance

AUGUST 1, 2022

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. 75 Test XYZ Student C 55 Test XYZ 77.5 75 Test XYZ Student C 55 Test XYZ 77.5 Computing accurate percentiles has negative implications in terms of memory footprint and performance.

Servers 142

Servers Testing C++ Code 142

Sutter's Mill

JUNE 29, 2012

Here’s another deep session for C&B 2012 on August 5-8 – if you haven’t registered yet, register soon. But there’s just so much about C++11 to cover, so here’s a fourth brand-new session I’ll do at C&B 2012 that goes deeper on its topic than I’ve ever been willing to go before. This session in one word: Deep.

Hardware 40

Hardware C++ Code Design 40

HammerDB

NOVEMBER 22, 2021

Introducing the PostgreSQL performance metrics viewer. HammerDB included a graphical performance metrics view for the Oracle database only. This enables the user to compare and contrast performance across different benchmark scenarios. usr/bin/install -c -m 644./pg_stat_statements--1.4.sql./pg_stat_statements--1.8--1.9.sql./pg_stat_statements--1.7--1.8.sql./pg_stat_statements--1.6--1.7.sql./pg_stat_statements--1.5--1.6.sql./pg_stat_statements--1.4--1.5.sql.

Metrics 62

Metrics Benchmarking C++ Database 62

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 103

Performance Cache Metrics Network 103

Nick Desaulniers

APRIL 6, 2020

My blog has been quieter than I would have liked; hopefully I can find more time to document some of these, maybe in series form. That doesn’t happen in kernel code; the CPU does that on its own. This is documented further in linux-insides. Recent work. May I present to you episode I; “ Off by Two.”

C++ 67

C++ Hardware Code Virtualization 67