Dynatrace

SEPTEMBER 15, 2020

The AWS Service Ready Program was established to support the seamless integration and deployment of AWS services. It differentiates Dynatrace as an AWS Partner Network (APN) member with a fully tested product on AWS Outposts. “We We are delighted to welcome Dynatrace to the AWS Outposts Ready Program. What is AWS Outposts?

AWS 200

AWS Design Cloud Storage 200

Testsigma

APRIL 13, 2021

So how do the testing community ensure that this love for iPhone and iOS apps grows manifolds with time? With quality testing and automation, we can ensure the iPhone provides the best experience to its loyal users. In this article, we will be looking at mobile testing for iOS. Unit Testing.

Testing 84

Testing Hardware Mobile Testing Tools 84

DZone

FEBRUARY 27, 2021

This begins not only in designing the algorithm or coming out with efficient and robust architecture but right onto the choice of programming language. Recently, I spent some time checking on the Performance (not a very detailed study) of the various programming languages. But you can not buy Bytelandian coins. You have one gold coin.

Java 214

Java C++ Benchmarking Programming 214

Testlodge

JUNE 16, 2021

One such specialized technique is penetration testing, which aims to detect any loophole in the system through which an attacker can gain access and steal critical data, which ultimately causes businesses to suffer monetary losses and lose customers to competitors. An Introduction to Penetration Testing.

Testing 67

Testing Hardware Open Source Internet 67

Randon ASCII

OCTOBER 4, 2020

It is desirable for a program to be able to go to sleep and then wake up a little while later. The answer is hardware interrupts. The OS programs a timer chip that then triggers an interrupt that wakes up the CPU and the OS can then schedule your thread. Timer interrupts and their raison d’être. Decades of madness.

Programming 145

Programming Games Hardware Operating System 145

Dynatrace

JUNE 15, 2023

If your application runs on servers you manage, either on-premises or on a private cloud, you’re responsible for securing the application as well as the operating system, network infrastructure, and physical hardware. This process can delay deployments or cause developers to skip security testing completely to meet project deadlines.

Cloud 177

Cloud Open Source Architecture Monitoring 177

Testsigma

FEBRUARY 6, 2020

According to IEEE Std 829-1998, Software Testing is defined as “the process of analyzing a software item to detect the differences between existing and required conditions (i.e. ” With the advent of new technologies and new software being released every day, software testing is gaining more strength and accolades.

Software 69

Software Software Testing Scalability 69

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. When we need to execute any program, it should be loaded into memory first. Here, memory is divided into equal sizes of partitions where the code of a program resides.

Programming 83

Programming C++ Database Virtualization 83

Daniel Lemire

FEBRUARY 8, 2019

The division by a power of two ( / (2 N )) can be implemented as a right shift if we are working with unsigned integers, which compiles to single instruction: that is possible because the underlying hardware uses a base 2. The computation of the remainder is nice, but I really like better the divisibility test. if ( ( i % 3 ) = = 0 ).

C++ 279

C++ Benchmarking Hardware Testing 279

Testsigma

JUNE 19, 2020

Fulfilling this need, automation testing within organizations increased. Various free open source and paid automation testing tools were introduced. Selenium was the first open-source automation tool introduced and organizations moved towards this tool for their test automation needs. Introduction to Selenium.

Testing Tools 60

Testing Tools Testing Open Source Java 60

Brendan Gregg

MARCH 16, 2024

2015-2020: Overhead As part of production rollout I did many performance overhead tests, which I've described publicly before: The overhead of adding frame pointers to everything (libc and Java) was usually less than 1%, with one exception of 10%. The actual overhead depends on your workload. Others have reported around 1% and around 2%.

Java 145

Java Cache Google Hardware 145

Percona

AUGUST 18, 2023

Backup testing. You can run multiple instances on a server to test your backups with the correct version and configs. The original motivation for FB was due to different hardware generations, especially between regions/data centers. AFAIK Facebook does this. root@ip-172-31-128-38 share]# cat /usr/lib/systemd/system/mysqld@.service

Programming 84

Programming Servers Database Hardware 84

The Morning Paper

SEPTEMBER 27, 2020

The wikipedia page on floating point numbers describes a number of related accuracy problems including the difficulty of testing for equality. In day-to-day usage, beyond judicious use of ‘within’ for equality testing, I suspect most of us ignore the potential difficulties of floating point arithmetic even if we shouldn’t.

Benchmarking 101

Benchmarking Hardware Programming Code 101

Percona

OCTOBER 18, 2023

The findings from our 2023 Open Source Database Report highlight that a substantial 42% of all database instances are now licensed through community-supported open source models, and GitHub reports that over 30% of Fortune 100 companies have established open source program offices (OSPO) to coordinate and manage their open source initiatives.

Open Source 93

Open Source Database Hardware Strategy 93

The Morning Paper

MAY 27, 2019

Last week we saw the benefits of rethinking memory and pointer models at the hardware level when it came to object storage and compression ( Zippads ). The protections are hardware implemented and cannot be forged in software. At hardware reset the boot code is granted maximally permissive architectural capabilities.

C++ 61

C++ Hardware Virtualization Benchmarking 61

The Morning Paper

DECEMBER 10, 2019

. …software operating on persistent data structures requires "global" pointers that remain valid after a process terminates, while hardware requires that a diverse set of devices all have the same mappings they need for bulk transfers to and from memory, and that they be able to do so for a potentially heterogeneous memory system.

Hardware 52

Hardware Virtualization Operating System Programming 52

Percona

JANUARY 17, 2023

We randomly pick a record (id = 245) from a table as a subject to describe the test case. PostgreSQL (or any other database) is programmed to read and write in a specific format that is just a sequence of characters (or bytes). Corruption is not a frequent affair; however, it becomes routine in case of faulty hardware or a bug.

Database 118

Database Hardware Storage Performance 118

Scalegrid

APRIL 16, 2020

This is why our BYOC pricing is less than our Dedicated Hosting pricing, as the costs listed for BYOC are only what you pay for ScaleGrid and don’t include your hardware costs. In contrast, ScaleGrid Dedicated hosting is all-inclusive, so you pay one fixed cost monthly (based on usage) through your ScaleGrid account. Expert Tip.

Cloud 242

Cloud Azure AWS Database 242

Tech News Gather

AUGUST 25, 2022

The platform is based on a purpose-oriented programming language that is simple to learn. Unlike other programs, it is compatible with both iOS and Android. Because the development is built on a single codebase, it saves time when testing the program across many platforms. Hardware Costs.

Development 52

Development Hardware Mobile Open Source 52

Sutter's Mill

NOVEMBER 11, 2023

Instead, you want a library that is tuned for your target hardware architecture and ready for par_unseq vectorized algorithms, for blazing speed. The work ended up taking not quite an hour, including to update the repo’s own code where I’m using contracts myself in the compiler and its unit tests. This is that library.

C++ 118

C++ Lambda Network Programming 118

Tech News Gather

APRIL 13, 2023

So Interactive apps are also challenging for developers, as they require a lot of effort and time to test applications on all platforms. It also takes a lot of time and expense to resolve software or hardware disintegration. An engaging UI directly means a better and bigger user base.

Mobile 52

Mobile Development Hardware Internet 52

The Netflix TechBlog

JUNE 4, 2019

CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance. The idea CFS operates by very frequently (every few microseconds) applying a set of heuristics which encapsulate a general concept of best practices around CPU hardware use. So why mess with it?

Cache 251

Cache Latency Airlines Logistics 251

The Netflix TechBlog

APRIL 17, 2019

264/AVC, currently, the most ubiquitous video compression standard supported by modern devices, often in hardware. However, rav1e is written in Rust programming language, whereas an encoder written in C has a much broader base of potential developers. Added a unit tests framework based on Google Test.

Open Source 166

Open Source Scalability Speed Efficiency 166

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. These factors meant that often when looking for database performance information, the results for a particular combination of software and hardware were not available. What is HammerDB? Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Percona

NOVEMBER 9, 2023

Your workloads, encapsulated in containers, can be deployed freely across different clouds or your own hardware. Role-Based Access Control (RBAC) : RBAC manages permissions to ensure that only individuals, programs, or processes with the proper authorization can utilize particular resources.

Efficiency 103

Efficiency Cloud Healthcare Open Source 103

PDC

NOVEMBER 9, 2018

In such scenarios, scalability or scaling is widely used to indicate the ability of hardware and software to deliver greater computational power when the amount of resources is increased. Consider a program that takes 20 hours to run using a single processor core. communication and load-balancing in MPI-parallelized programs).

Scalability 65

Scalability Programming Government Hardware 65

Randon ASCII

FEBRUARY 25, 2018

In this particular investigation, which spanned twenty months, we suspected hardware failure, compiler bugs, linker bugs, and other possibilities. Jumping too quickly to blaming hardware or build tools is a classic mistake, but in this case the mistake was that we weren’t thinking big enough. I decided it was time to try science.

Programming 79

Programming Hardware Cache Code 79

Scalegrid

JANUARY 25, 2024

Evaluating the total commands processed per second entails tracking server workload by observing its request-handling capabilities via different techniques such as immediate metric measurements, continuous real-time data flow using MONITOR command, or testing simulated workloads with the Redis benchmark program.

Metrics 130

Metrics Monitoring Latency Cache 130

Alex Russell

APRIL 29, 2021

Thanks to the Web Platform Tests project and wpt.fyi , we have the makings of an answer for the first: Tests that fail only in a given browser. wpt.fyi 's new Compat 2021 dashboard narrows this full range of tests to a subset chosen to represent the most painful compatibility bugs : Stable-channel Compat 2021 results over time.

Media 145

Media Games Education Engineering 145

Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. This will slow this test a little.) But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

KeyCDN

JANUARY 23, 2020

A wide range of users with different operating systems, browsers, hardware configurations and other variables provides a wide sample size that helps developers discover as many issues as possible. It’s also important for developers not to confuse real user data with real user testing. What is real user monitoring (RUM)?

Strategy 72

Strategy Metrics Monitoring Servers 72

SQL Server According to Bob

DECEMBER 18, 2018

Testing shows that by using the Fua bit with the data, write request can reduce the I/O traffic by ~50% for a SQL Server, write-intensive workload. During my investigation, I traced, tested, reviewed, and instrumented the Linux kernel to understand the SQL Server I/O durability needs and associated impacts. Starting with the Linux 4.18

Servers 90

Servers Media Cache Storage 90

Smashing Magazine

AUGUST 3, 2021

Different browsers running on different platforms and hardware, respecting our user preferences and browsing modes (Safari Reader/ assistive technologies), being served to geo-locations with varying latency and intermittency increase the likeness of something not working as intended. Not all errors are preventable via defensive programming.

Network 145

Network Engineering Availability Monitoring 145

All Things Distributed

MAY 8, 2012

s announcement of Amazon RDS for Microsoft SQL Server and.NET support for AWS Elastic Beanstalk marks another important step in our commitment to increase the flexibility for AWS customers to use the choice of operating system, programming language, development tools and database software that meet their application requirements.

Cloud 115

Cloud Development AWS Servers 115

KeyCDN

SEPTEMBER 20, 2018

Monitoring errors on the front-end requires a bit more work because front-end performance is highly dependant on the user’s hardware, software and connection. For instance, that’s why here at KeyCDN we offer a bounty program for users that find security bugs within our application. Manual Testing 5.

Strategy 67

Strategy Monitoring Website Google 67

Nick Desaulniers

APRIL 6, 2020

“War stories” in programming are entertaining tales of truly evil bugs that kept you up at night. halt (); Some sort of very early exception handler; better to sit busy in an infinite loop than run off and destroy hardware or corrupt data, I suppose. Recent work. halt_loop: while ( true ).

C++ 67

C++ Hardware Code Virtualization 67