Dynatrace

MAY 28, 2020

After a new build gets deployed and automated tests executed, SLIs are evaluated against their SLOs and, depending on that result, a build is considered good (promoted) or bad (rolled back). “ The app description and supporting files such as load testing scripts are on the Keptn Example GitHub. This is what this blog is all about.

Engineering 270

Engineering Performance Metrics Best Practices 270

Dynatrace

APRIL 14, 2020

Across the two days, there were sixteen new sessions – delivered for the first time – based on content derived from lab exercises developed and delivered by working with Dynatrace experts and our Partner communicate to showcase Dynatrace’s newest features. Dynatrace AWS monitoring with CloudWatch metrics and metadata.

AWS 245

AWS Lambda Performance Infrastructure 245

Dynatrace

JUNE 1, 2023

Certain SLOs can help organizations get started on measuring and delivering metrics that matter. Fitness app : The fitness app should offer a response time of less than 500 milliseconds for exercise tracking and data recording. This SLO enables a smooth and uninterrupted exercise-tracking experience.

Latency 245

Latency Website Traffic DevOps 245

The Netflix TechBlog

SEPTEMBER 8, 2020

To prepare ourselves for a big change in the tech stack of our endpoint, we decided to track metrics around the time taken to respond to queries. After some consultation with our backend teams, we determined the most effective way to group these metrics were by UI screen. For the migration, testing was a first-class citizen.

Latency 241

Latency Cache Java Traffic 241

Dynatrace

DECEMBER 10, 2020

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Dynatrace news. This blog summarizes our great conversation for the posed questions.

Strategy 245

Strategy Performance Logistics Monitoring 245

Dynatrace

APRIL 21, 2022

Most monitoring tools for migrations, development, and operations focus on collecting and aggregating the three pillars of observability— metrics, traces, and logs. Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host.

Azure 246

Azure Monitoring Virtualization Metrics 246

Dynatrace

APRIL 5, 2024

However, it’s essential to exercise caution: Limit the quantity of SLOs while ensuring they are well-defined and aligned with business and functional objectives. Error budget burn rate = Error Rate / (1 – Target) Best practices in SLO configuration To detect if an entity is a good candidate for strong SLO, test your SLO.

Efficiency 264

Efficiency Traffic Tuning Metrics 264

Dynatrace

JUNE 1, 2023

Certain service-level objective examples can help organizations get started on measuring and delivering metrics that matter. Fitness app : The fitness app should offer a response time of less than 500 milliseconds for exercise tracking and data recording. This SLO enables a smooth and uninterrupted exercise-tracking experience.

Traffic 173

Traffic Website Latency DevOps 173

Speed Curve

DECEMBER 10, 2017

Network metrics have been around for decades, but rendering metrics are newer. These are a few of the rendering metrics that currently exist. A brief history of performance metrics. Metrics quantify behavior. Metrics quantify behavior. Gaps in today's performance metrics. Speed Index. Start Render.

Metrics 72

Metrics Website Speed Monitoring 72

Scalegrid

APRIL 16, 2020

Use Follower Clusters keep two independent database systems (of the same type) in sync so you can analyze, optimize and test app performance for MySQL, PostgreSQL and MongoDB® database. Discover the current NoSQL vs. SQL usage, most popular databases, important metrics to track, and their most time-consuming database management tasks.

Cloud 242

Cloud Azure AWS Database 242

The Netflix TechBlog

FEBRUARY 10, 2021

Depending on which solution you choose, you could be inheriting a ton of issues or something that is battle tested. We decided to track the number of uses of each component, the number of installs of the packages themselves, and how many applications were using Hawkins in production as metrics to determine success.

Design 236

Design Systems Engineering Entertainment 236

The Netflix TechBlog

OCTOBER 14, 2021

The end result is the first major update to BetterTLS since its first release : a new suite of tests to exercise TLS implementations’ certificate path building. As service owners, having test suites that can answer these questions can guide decision making. This is the primary feature of interest in this test suite.

Servers 172

Servers Testing Best Practices Java 172

O'Reilly

JANUARY 17, 2023

You might say that the outcome of this exercise is a performant predictive model. Second, this exercise in model-building was … rather tedious? If you’re a professional data scientist, you already have the knowledge and skills to test these models. That’s sort of true. Get your results in a few hours.

Tuning 145

Tuning Open Source Software Software 145

The Morning Paper

JULY 4, 2019

The ‘controlled’ part is important here because given the scale and complexity of the environment under test, the only meaningful place to do this is in production with real users. a bug fix, configuration change, new feature, or A/B test). Netflix’s system is deployed on the public cloud as complex set of interacting microservices.

Latency 77

Latency Engineering Metrics Traffic 77

Testsigma

JANUARY 6, 2022

So, we thought of sharing some tips and tricks with the testing community that is working from home, aiming to improve their working experience overall. This is critical since even if a small detail is missed the results can be catastrophic from a testing perspective. Maintain continuous team collaboration.

Testing 52

Testing Internet Internet Testing Tools 52

Particular Software

MARCH 28, 2022

Saga scenario testing While we were making it easier to write sagas, we thought it was also essential to make it easier to test them. 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

Speed Curve

DECEMBER 13, 2023

Background For this performance audit, I looked at this synthetic test for the LEGO.com home page. (We You can drill down into the test details for each site and learn how the fastest sites stay fast.) Looking at the synthetic test results, we see that while Start Render time is an impressive 0.3 Let's dig deeper.

Performance 78

Performance Retail Benchmarking Ecommerce 78

Sutter's Mill

MARCH 30, 2025

Background in a nutshell: In C++, code that (usually accidentally) exercises UB is the primary root cause of our memory safety and security vulnerability issues. I wont lie: This is going to be a metric ton of work. And its work that I think some people dont expect C++ to ever be able to do.

C++ 59

C++ Programming Code Google 59

Tasktop

FEBRUARY 24, 2021

That’s a bit alarming, because the Flow Metrics of several Fortune 100 companies now practicing value stream management (VSM ) in their software portfolios have revealed an acute resource scarcity in QA. Get together once a year for a value stream mapping exercise, and you’ll emerge with a list of potential improvement hypotheses. .

Healthcare 52

Healthcare Retail Metrics Innovation 52

Adrian Cockcroft

MARCH 17, 2020

There are many possible failure modes, and each exercises a different aspect of resilience. A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a resilient system. Is the model of the controlled process looking at the right metrics and behaving safely?

Healthcare 52

Healthcare Government Airlines Systems 52

Smashing Magazine

NOVEMBER 11, 2021

Simply put, following a proper process and having a command of design principles, as opposed to mindlessly copying, gives you a better chance of coming up with usable designs with fewer iterations and useability testing sessions. “. Usability Testing. So how do you strike a balance between “copying” and “doing your own homework”?

Design 113

Design Best Practices Efficiency Testing 113

The Agile Manager

AUGUST 31, 2021

We all understand the consequences to an Agile team trying to compensate for inadequate design artifacts, vague requirements, poor quality code, and ineffective tests: rework cycles, additional handoffs, and poor quality, among other things. The metrics are only very rarely used to drive the team.

Metrics 52

Metrics Design Engineering C++ 52

HammerDB

APRIL 19, 2023

Instead, focus on understanding what the workloads exercise to help us determine how to best use them to aid our performance assessment. Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. DISK METRICS sysstat_io_nvme0n1_avg_wait_ms 8.32

Performance 55

Performance Benchmarking Cache Storage 55

The Agile Manager

DECEMBER 17, 2008

Traditional IT projects are mass economy-of-scale exercises: once development begins, armies of developers are unleashed. Traditionally in IT, our gatekeepers are typically several different waves of requirements and specification documents, then software, then test results, then a production event.

Code 40

Code Latency Metrics Testing 40

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

Latency 53

Latency Systems Engineering Hardware 53

The Agile Manager

FEBRUARY 23, 2009

Quality Measures We have no shortage of quality metrics. But there are a few metrics worth pointing out that are strong indicators that code will be difficult and expensive to maintain: the extent of code duplication, the presence of highly complex code (i.e., Our tests can include unit tests, integration tests, and functional tests.

Government 40

Government Metrics Code Java 40

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

Latency 52

Latency Systems Engineering Hardware 52

ScaleOut Software

AUGUST 20, 2020

Development is fast and straightforward using standard object-oriented techniques, and the test/debug cycle is kept short by making use of a mock environment running on the developer’s workstation. This exercises the model’s code and surfaces issues and exceptions, which can be readily examined and resolved in a controlled environment.

Cloud 52

Cloud Development Analytics Azure 52

ScaleOut Software

AUGUST 20, 2020

Development is fast and straightforward using standard object-oriented techniques, and the test/debug cycle is kept short by making use of a mock environment running on the developer’s workstation. This exercises the model’s code and surfaces issues and exceptions, which can be readily examined and resolved in a controlled environment.

Cloud 52

Cloud Development Analytics Azure 52

Tasktop

FEBRUARY 24, 2021

That’s a bit alarming, because the Flow Metrics of several Fortune 100 companies now practicing value stream management (VSM ) in their software portfolios have revealed an acute resource scarcity in QA. Get together once a year for a value stream mapping exercise, and you’ll emerge with a list of potential improvement hypotheses. .

Healthcare 40

Healthcare Retail Metrics Innovation 40

Rigor

NOVEMBER 22, 2019

According to Tim Kadlec : A performance budget is a clearly defined limit on one or more performance metrics that the team agrees not to exceed and that is used to guide design and development. Metrics considering time are called “ milestone timings.” Metrics considering time are called “ milestone timings.”

Performance 45

Performance Metrics Website Speed 45

The Agile Manager

APRIL 14, 2009

Finally, we saw how we can vastly simplify the burden on our delivery teams by automating metrics collection. As you stand up Agile projects, define each of your gatekeepers to be functional, tested, useful and deployable asset. If you do have well-running Agile projects, hone in on metrics collection, automation and consolidation.

Games 40

Games Government Metrics Testing 40

HammerDB

JANUARY 5, 2019

If you change something and re-run the same test the difference in the results can be attributed to the changes you made. Consequently over time you have a reference point “set in stone” from which future changes can be measured by running the same test. Scalability. can you be sure that it scales?

Benchmarking 40

Benchmarking Database Social Media Scalability 40

The Agile Manager

OCTOBER 28, 2007

They go on to report that 70% of the cases of these 7 chronic illnesses are preventable through lifestyle change: diet, exercise, avoiding cigarettes and what not. Do you have a complete set of process metrics established with your suppliers? To what degree of certainty do you trust the data you receive for those metrics?

Government 40

Government Retail Energy Code 40

The Agile Manager

NOVEMBER 26, 2008

This content is derived from a webinar I presented earlier this month titled The Agile PMO: Real-Time Metrics and Visibility. Those individually-performed tasks need to be integrated and then tested from end-to-end. End-to-end testing - the best indicator of success - can't take place until integration is complete.

Code 40

Code Servers Engineering Programming 40

Tasktop

OCTOBER 30, 2019

Over the past months, a number of Fortune 100 customers have been testing Tasktop’s new product, Tasktop Viz , to implement the Flow Framework. Jeff has been leading his organization’s software delivery transformation with the help of Flow Metrics. Day two recap. That decision almost eliminated our entire incident count.

DevOps 8

DevOps Education Innovation Metrics 8

The Netflix TechBlog

MARCH 6, 2019

MezzFS collects metrics on data throughput, download efficiency, resource usage, etc. Rerun a batch of replays We collect replays from actual MezzFS mounts in production, and we rerun large batches of replays for regression and performance tests. in Atlas , Netflix’s in-memory dimensional time series database.

Media 218

Media Storage Processing Cache 218