DZone

JANUARY 3, 2020

Debugging is not just about the fix — sometimes it's the drudgery of trying to locate the root cause that kills passion, especially when you have thousands or even millions of lines of code. Find out that his fix causes 100~1000 failed tests. Randomly pick some of the tests and dive into the code again.

C++ 162

C++ Code Database Testing 162

SQL Performance

APRIL 13, 2022

Finally, I’ll compare the performance of the different solutions. Use the following code to create a table called T1 and populate it with a small set of sample data: SET NOCOUNT ON ; USE tempdb ; DROP TABLE IF EXISTS dbo. To test the performance of your solution, you’ll need to populate the table with larger volumes of sample data.

C++ 136

C++ Strategy Testing Servers 136

Percona

MAY 16, 2023

This was the first official image and since then, we have been improving our testing and packaging procedures based on Docker, CircleCI, and GitHub Actions. However, when I’m coding, I’m not testing in Docker. 7 sh -c "rm -rf /backups/data; mydumper -h 172.17.0.5 -o 7 sh -c "myloader -h 172.17.0.4 -d

C++ 91

C++ Open Source Database Testing 91

Testsigma

APRIL 23, 2021

So, there’s a solid reason why mobile app testing is a crucial step in any app development process. To ensure our users get a seamless experience across any device — we perform mobile app testing. . That’s where mobile app automation testing comes into the picture. Best Mobile App Automation Testing Tools.

Testing Tools 86

Testing Tools Mobile Testing Open Source 86

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. We will not concern ourselves with the raw throughput of workload.

Performance 54

Performance Benchmarking Cache Storage 54

The Morning Paper

MAY 27, 2019

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment Davis et al., That ‘reasonable’ performance cost is a 6.8% code is not given access to excessive capabilities. And this all has to work for whole-system executions, not just the C-language portion of user processes.

C++ 61

C++ Hardware Virtualization Benchmarking 61

Testlodge

OCTOBER 1, 2021

Table of Contents What is HTML Validation Testing? Benefits of HTML Validation Testing How to Validate HTML CSS and JavaScript Validation Challenges Tips Conclusion. What is HTML Validation Testing? HTML validation testing ensures that HTML code appears with the correct syntax and format. How to Validate HTML.

Testing 61

Testing Best Practices C++ Code 61

SQL Performance

MARCH 10, 2021

The technique can have interesting positive performance benefits, but there are also caveats that you need to be aware of, where under certain conditions it can incur a performance penalty. I’ll do my testing in tempdb, enabling time statistics: SET NOCOUNT ON ; USE tempdb ; SET STATISTICS TIME ON ; Earlier ideas. BatchMe ; GO.

C++ 134

C++ Testing Code Servers 134

SQL Performance

JANUARY 13, 2021

Here’s the code to create the dummy table: CREATE TABLE dbo. BatchMe ( col1 INT NOT NULL , INDEX idx_cs CLUSTERED COLUMNSTORE ) ; And here’s the code defining the dbo.GetNumsItzikBatch function: CREATE OR ALTER FUNCTION dbo. L0 AS ( SELECT 1 AS c. L0 AS ( SELECT 1 AS c. BatchMe ON 1 = 0.

C++ 113

C++ Code Testing Processing 113

SQL Performance

DECEMBER 9, 2020

In a comment to my article, Marcos Kirchner mentioned that he tested my solution with varying table value constructor cardinalities, and got different execution times for the different cardinalities. Testing different base table cardinalities is just one dimension to try. What’s the best performing solution that you can conjure?

C++ 114

C++ Servers Testing Processing 114

Dynatrace

MARCH 17, 2021

Application security is a software engineering term that refers to several different types of security practices designed to ensure applications do not contain vulnerabilities that could allow illicit access to sensitive data, unauthorized code modification, or resource hijacking. Application security tests and what they do.

Open Source 162

Open Source Cloud Games Java 162

Rigor

JANUARY 13, 2020

Reading time 1 min Why share the library of the web performance books while there’s a substantial collection of fantastic websites and articles on the net? High Performance Browser Networking. This book is about performance problems and the various technologies created to fight them. High Performance Websites.

Performance 75

Performance Social Media Website Website Performance 75

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. Use the following code to create the Orders table and populate it with a small set of sample data to help you verify the validity of the solutions: SET NOCOUNT ON ; USE tempdb ; DROP TABLE IF EXISTS dbo.

C++ 112

C++ Code Azure Database 112

Dynatrace

APRIL 11, 2023

Today’s organizations face increasing pressure to keep their cloud-based applications performing and secure. As data from different corners of the enterprise proliferates, teams need a better way to bring data together to identify performance and security issues, minimize security risk, and drive greater business value.

Cloud 180

Cloud DevOps Open Source Retail 180

Percona

MARCH 13, 2023

Deployment with Docker We published a Docker image with all components in Docker Hub: perconalab/neon Tags | Docker Hub And the source code is located in our build repository: Percona-Lab/serverless-postgresql-build (github.com) Deployment steps For my experiments, I follow these steps. 6400'" -c "listen_http_addr='0.0.0.0:9898'"

Serverless 117

Serverless C++ Storage Latency 117

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 D 55 Test XYZ 77.5 75 Test XYZ Student H 65 Test XYZ 77.5 The Distinct Predicate.

Servers 142

Servers Testing C++ Code 142

HammerDB

JULY 14, 2021

Also, the additional installation of the MySQL client libraries was needed when testing MariaDB. 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.

Testing 57

Testing C++ Virtualization Tuning 57

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. So, I decided to gather information and write a detailed blog about this issue.

Programming 81

Programming C++ Database Virtualization 81

Testsigma

JULY 31, 2021

The Shift Left testing approach is not a new term. This testing approach expedites testing and helps detect bugs in the early stages of development. But, First, What’s Shift Left Testing? Shift Left is a testing approach where testing begins right from the software development phase.

Testing 52

Testing Testing Tools Analytics Java 52

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 227

Artificial Intelligence Monitoring Infrastructure Cloud 227

Testsigma

JUNE 26, 2021

If we talk about testing itself — automation has taken us several leaps ahead; QA teams have solidified test efficiency and coverage even further. Gone are the days when automation testers had to learn coding to write test scripts. What is Codeless Automation Testing? Picture Credit: AgileDevOpsWest.

Testing Tools 52

Testing Tools Testing Analytics Mobile 52

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

Testsigma

APRIL 16, 2021

Android developers and testers perform mobile tests to deliver apps that drive a high user retention rate through a great user interface. While mobile automation tests are performed for Android, iOS, and Windows devices, in this post, we’ll dive into the UI frameworks for Android automation testing.

Testing 52

Testing Open Source Mobile Java 52

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). Violating the assertion does not result in undefined behavior directly.

C++ 65

C++ Programming Lambda Code 65

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. print(z," VU TEST") . print("TEST SEQUENCE COMPLETE"). print(z," VU TEST") . print("TEST SEQUENCE COMPLETE"). HammerDB will show the prompt “hammerdb>>>” to indicate that it is running a Python interpreter.

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++ 66

C++ Programming Code Testing 66

Scalegrid

FEBRUARY 15, 2024

This approach is particularly useful in testing or development environments. 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.

Servers 130

Servers Best Practices Government Network 130

Testsigma

FEBRUARY 3, 2021

People won’t even waste a chance to leave a negative review if they found a little error in the app, whether it’s performance glitches, a weak user interface, or a crash. So, it becomes the need of the hour to invest in mobile automation testing and avoid negative reviews and failures. What is Mobile Automation testing?

Mobile 52

Mobile Testing Testing Tools Open Source 52

The Netflix TechBlog

APRIL 17, 2019

Scalable Video Technology (SVT) is Intel’s open source framework that provides high-performance software video encoding libraries for developers of visual cloud technologies. Reference software serves as the basis for standard development, a framework, in which the performance of video coding tools is evaluated.

Open Source 166

Open Source Scalability Speed Efficiency 166

Smashing Magazine

NOVEMBER 26, 2021

It can also have tests that are flaky and don’t inspire any confidence. 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.”.

Cache 143

Cache Code Testing Design 143

SQL Performance

DECEMBER 9, 2020

In a comment to my article, Marcos Kirchner mentioned that he tested my solution with varying table value constructor cardinalities, and got different execution times for the different cardinalities. Testing different base table cardinalities is just one dimension to try. What’s the best performing solution that you can conjure?

C++ 61

C++ Servers Testing Processing 61

HammerDB

JUNE 22, 2023

Copy Code Copied Use a different Browser hammerdb>jobs disable 1 Disabling jobs repository, restart HammerDB to take effect and in the GUI use the Jobs Disabled/Enabled option. in in the DATA directory, set this as follows: Copy Code Copied Use a different Browser <commandline> <sqlite_db>/opt/HammerDB-4.8/DATA/hammer.db</sqlite_db>

Benchmarking 57

Benchmarking C++ Virtualization Database 57

Brendan Gregg

JANUARY 1, 2019

It can be used for many things: network performance, firewalls, security, tracing, and device drivers. The term tracing refers to performance analysis and observability tools that can produce per-event info. Programming in eBPF directly is incredibly hard, the same as coding in v8 bytecode. It's the same with eBPF.

C++ 111

C++ Virtualization Programming Code 111

Sutter's Mill

FEBRUARY 25, 2021

Explain your answer using the following example, which uses a variation of a proposed post-C++20 syntax for preconditions. [1] The above would be roughly equivalent to writing the test before the call at every call site instead. GUIDELINE: Use a precondition to write “this is what a bug is” as code the caller can check.

C++ 57

C++ Code Testing Systems 57

Percona

OCTOBER 3, 2023

Transparent Huge Pages (THP) is a memory management feature in Linux operating systems that aims to enhance system performance. In this post, we will explore THP, its impact on database servers, and how to disable it for optimal performance and stability. What are Transparent Huge Pages?

Database 85

Database Servers Open Source C++ 85

Testsigma

JANUARY 18, 2021

Does this mean that enough effort was not spent in the automation testing process? The possibility is that the web developer and test automation engineer did not do thorough cross browser testing! However, choosing a scalable, secure, and reliable cross browser testing infrastructure should not be overlooked in the process.

Testing 55

Testing Operating System Website Internet 55

SQL Performance

MAY 11, 2022

By following some basic tips you can sometimes reduce the number of explicit sort operators, which can, of course, have a major impact on the performance of the query. You can download the source code to create and populate this database here. Consider the following query, which I’ll refer to as Query 6: WITH C AS. (

C++ 133

C++ Database Servers Code 133