Dynatrace

MAY 15, 2020

Dynatrace is the leading Software Intelligence Platform, focused on web-scale cloud monitoring, delivering the richest, most complete data sets in the Application Performance Management market. These insights are critical to ensuring proactive application monitoring and optimal system performance.

Government 221

Government DevOps Infrastructure Network 221

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. However, not all user monitoring systems are created equal. RUM gathers information on a variety of performance metrics. Performance testing based on variable metrics (i.e.,

Best Practices 172

Best Practices Monitoring Wireless Traffic 172

Dynatrace

APRIL 15, 2021

Fermentation process: Steve Amos, IT Experience Manager at Vitality spoke about how the health and life insurance market is now busier than ever. As a company that’s ethos is based on a points-based system for health, by doing exercise and being rewarded with vouchers such as cinema tickets, the pandemic made both impossible tasks to do.

Speed 162

Speed Media Monitoring Engineering 162

The Morning Paper

NOVEMBER 3, 2019

An analysis of performance evolution of Linux’s core operations Ren et al., For example: “Red Hat and Suse normally required 6-18 months to optimise the performance an an upstream Linux kernel before it can be released as an enterprise distribution”, and. Google’s data center kernel is carefully performance tuned for their workloads.

Performance 108

Performance Benchmarking Tuning Hardware 108

Dynatrace

APRIL 21, 2022

Analyzing user experience to ensure uniform performance after migration. Performance efficiency. Some principles Microsoft provides across this area include: Choosing the right resources aligned with business goals that can handle the workload’s performance. Understanding resource utilization for cost management.

Azure 184

Azure Monitoring Virtualization Metrics 184

Dynatrace

JUNE 8, 2021

This post was co-authored by Jean-Louis Lormeau, Digital Performance Architect at Dynatrace. . In software we use the concept of Service Level Objectives (SLOs) to enable us to keep track of our system versus our goals, often shown in a dashboard – like below –, to help us to reach an objective or provide an excellent service for users.

Metrics 163

Metrics Tuning Programming Systems 163

HammerDB

JULY 16, 2021

One of the most important concepts in analysing database performance is that of understanding scalability. When a system ‘scales’ it is able to deliver higher levels of performance proportional to the system resources available to it. In this example, we will compare MySQL 5.7.33 and MySQL 8.0.25

Virtualization 57

Virtualization Performance C++ Database 57

The Morning Paper

APRIL 16, 2019

Teaching rigorous distributed systems with efficient model checking Michael et al., It describes the labs environment, DSLabs , developed at the University of Washington to accompany a course in distributed systems. Enabling students to build running performant versions of all of those systems in the time available is one challenge.

Systems 43

Systems Efficiency Testing Strategy 43

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++ 82

C++ Open Source Database Programming 82

The Netflix TechBlog

MARCH 5, 2020

Perform Post Incident Review (PIR)? —?Review Review how the incident process was performed, tracking actions to be performed after the incident, and driving learning through structuring informal knowledge. Making note of key learnings to be addressed after resolution. Slack for managing incident metadata (e.g.

AWS 204

AWS Open Source Google Speed 204

Dynatrace

SEPTEMBER 30, 2021

Hosted and moderated by Amazon, AWS GameDay is a hands-on, collaborative, gamified learning exercise for applying AWS services and cloud skills to real-world scenarios. It also ensures your team shares common fluency in cloud best practices, which improves collaboration and helps your company achieve a higher standard of performance.

AWS 205

AWS Best Practices Analytics Cloud 205

The Netflix TechBlog

MAY 27, 2020

Reliability, formally speaking, is the ability of a system to function under stated conditions for a period of time. Put simply, reliability means a system should work and continue working. CORE is a team consisting of Site Reliability Engineers, Applied Resilience Engineers, and Performance Engineers. Technical Sleuthing?—?assisting

Engineering 104

Engineering Innovation Systems Architecture 104

Percona

DECEMBER 5, 2023

The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 While we’ve contemplated taking a physical backup and conducting PITR , it’s worth noting that PITR can also be executed on the existing replica or delayed replica to expedite the process.

Database 76

Database Traffic C++ Servers 76

Strategic Tech

NOVEMBER 24, 2020

High-performing technology organisations are characterised by decentralisation: autonomous teams, masters of the problem space, who own products or features. The traditional EA role of documenting business processes and capabilities serves a purposes. It helps people to understand the complex systems they are working with.

Architecture 72

Architecture DevOps Technology Technology 72

Dynatrace

JUNE 1, 2021

Application performance monitoring (APM) is the practice of tracking key software application performance metrics using monitoring software and telemetry data. Practitioners use APM to ensure system availability, optimize service performance and response times, and improve user experiences. Performance monitoring.

Monitoring 148

Monitoring Mobile Social Media Artificial Intelligence 148

Percona

AUGUST 8, 2023

As such, one of the more common questions I get from my clients is whether or not their system will be able to endure an anticipated load increase. Or worse yet, sometimes I get questions about regaining normal operations after a traffic increase caused performance destabilization.

Traffic 88

Traffic Cache Monitoring Database 88

O'Reilly

DECEMBER 12, 2023

This ruling in itself raises many questions: how much creativity is needed, and is that the same kind of creativity that an artist exercises with a paintbrush? But reading texts has been part of the human learning process as long as reading has existed; and, while we pay to buy books, we don’t pay to learn from them.

Artificial Intelligence 101

Artificial Intelligence Media Google Processing 101

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. cat /usr/lib/systemd/system/postgresql-14.service. That is where all “ALTER SYSTEM SET/RESET” commands keep the information. But another database might be an OLAP system.

Database 101

Database Servers Open Source Tuning 101

Particular Software

MARCH 28, 2022

With a saga, a business process that would otherwise have been implemented as a clunky batch job 1 can be built in a much more elegant and real-time manner. So the newest version of our testing framework now includes tools to perform saga scenario testing , which are more expressive than testing sagas with standard unit tests.

Development 52

Development C++ Virtualization Metrics 52

The Netflix TechBlog

SEPTEMBER 8, 2020

Functional Testing Functional testing was the most straightforward of them all: a set of tests alongside each path exercised it against the old and new endpoints. The Not-so-good In the arduous process of breaking a monolith, you might get a sharp shard or two flung at you.

Latency 233

Latency Cache Java Traffic 233

Adrian Cockcroft

MARCH 17, 2020

Picture taken by Adrian March 17, 2020 A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. The first technique is the most generally useful.

Healthcare 52

Healthcare Government Airlines Systems 52

Apica

SEPTEMBER 21, 2020

With thousands of monitors in your current system, making the change can be a daunting prospect. We are here to make the process as seamless as possible; migration is a part of our onboarding process. First, we will examine your current monitoring system. Here’s how it works. Preparation. User management.

Monitoring 52

Monitoring Tuning Virtualization Cloud 52

MachMetrics

DECEMBER 12, 2019

Google has announced plans for a new badging system that would let users know whether a website typically loads slowly. In a post detailing the thought process behind the planned feature, the Chrome team explains that “In the future, Chrome may identify sites that typically load fast or slow for users with clear badging ”.

Google 86

Google Website Best Practices Internet 86

Alex Russell

FEBRUARY 21, 2023

is astonishingly dense with delayed features, inadvertantly emphasising just how far behind WebKit has remained for many years and how effective the Blink Launch Process has been in allowing Chromium to ship responsibly while consensus was witheld in standards by Apple. Regardless, Safari 16.4 31st : Web Share changes Feb.

Energy 79

Energy Games Engineering Design 79

The Agile Manager

AUGUST 31, 2021

If we accept the fact that Agile is a value system and not a set of mechanical processes, it stands to reason that there must be something different about the norms and behaviors of Agile managers vis-a-vis traditional managers. One person who does a substandard job affects the performance of the entire team.

Metrics 52

Metrics Design Engineering C++ 52

The Morning Paper

AUGUST 27, 2019

I am so pleased to see a database systems paper addressing the concerns of the application developer! To the developer, a strongly consistent system behaves exactly like a single-threaded system running on a single node, so reasoning about the behaviour of the system is simple 1. That brings us to invariant confluence.

Programming 59

Programming Processing Database Systems 59

Dynatrace

SEPTEMBER 20, 2019

Here’s what we discussed so far: In Part 1 we explored how DevOps teams can prevent a process crash from taking down services across an organization. In doing so, they automate build processes to speed up delivery, and minimize human involvement to prevent error. Both use the same database back-end and app configuration.

Systems 26

Systems Traffic DevOps Database 26

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. This discussion focuses on hardware, software and operational failure modes.

Latency 52

Latency Engineering Systems Hardware 52

Percona

JULY 6, 2023

Performance is one of the essential aspects of a database management system. Very little can be more annoying and frustrating for users than poor performance, meaning long-running queries and high response times at the front end. Next is the table definition.

Best Practices 89

Best Practices Tuning Database Testing 89

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. This discussion focuses on hardware, software and operational failure modes.

Latency 53

Latency Engineering Systems Hardware 53

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. PLOS’19.

Hardware 56

Hardware Programming Media Storage 56

Randon ASCII

OCTOBER 20, 2019

Normally ninja does an excellent job of saturating the system, keeping n+2 processes running at all times so that there is little idle time. Here is a zoomed-in view of one of the drops – numbers on the bottom of the timeline are seconds: My first thought was that ninja was failing to create processes quickly enough.

Processing 60

Processing Systems Code Software 60

The Morning Paper

JANUARY 23, 2020

With only an hour or so of degraded performance in the end, it’s not the worst incident you can imagine, but it was clearly taken as very serious given the time of year. The process tracing exercise included: Examning IRC transcripts from multiple channels.

Internet 53

Internet Internet Cache Engineering 53

The Morning Paper

JULY 4, 2019

Are you ready to take your system assurance programme to the next level? In all cases we need to be able to carefully monitor the impact on the system, and back out if things start going badly wrong. Netflix’s system is deployed on the public cloud as complex set of interacting microservices.

Latency 77

Latency Engineering Metrics Traffic 77

The Agile Manager

AUGUST 31, 2020

I've worked with quite a few companies for which long-lived software assets remain critical to day-to-day operations, ranging from 20-year-old ERP systems to custom software products that first processed a transaction way back in the 1960s. The first and most obvious is that they are long on how to start, but short on how to finish.

Architecture 52

Architecture Code Strategy Programming 52

Alex Russell

AUGUST 30, 2021

Does Apple restrict, in any way, the ability of competing web browsers to deploy their own web browsing engines when running on Apple's operating system? This process can be messy and slow, but it never creates a political blockage for developing new capabilities for the web. If no, please explain why not.

Engineering 98

Engineering Open Source Website Operating System 98

Testsigma

MARCH 6, 2020

With the amount of data flow across multiple modules in applications being made today, a feature addition or a fix can cause unexpected issues in the normal system operations. Regression tests should be performed just after the sanity testing is complete. When is Regression Testing done?

Best Practices 52

Best Practices Testing Code Testing Tools 52