Dynatrace

JUNE 1, 2023

Service level objectives (SLOs) provide a powerful framework for measuring and maintaining software performance, reliability, and user satisfaction. SLOs are a valuable tool for organizations to ensure the health and performance of their applications. But how do you get started, and what are some service level objective examples?

Latency 245

Latency Website Traffic DevOps 245

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 278

Government DevOps Infrastructure Network 278

The Netflix TechBlog

DECEMBER 23, 2020

By Fabio Kung , Sargun Dhillon , Andrew Spyker , Kyle , Rob Gulewich, Nabil Schear , Andrew Leung , Daniel Muino, and Manas Alekar As previously discussed on the Netflix Tech Blog, Titus is the Netflix container orchestration system. It runs a wide variety of workloads from various parts of the company?—?everything

Media 295

Media Metrics Systems Processing 295

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 242

Metrics Tuning Programming Systems 242

O'Reilly

FEBRUARY 11, 2025

How does that apply when you need to debug AI-generated code, generated by a system that has seen everything on GitHub, Stack Overflow, and more? OReilly author Andrew Stellman recommends several exercises for learning to use AI effectively. So if you write code that is as clever as you can be, youre not smart enough to debug it.

Programming 97

Programming Code Software Software 97

Dynatrace

APRIL 15, 2021

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. Vitality had to respond quickly to this change by signing up new partners and developing new ways of incorporating rewards.

Speed 241

Speed Media Monitoring Engineering 241

Dynatrace

MARCH 14, 2022

As patient care continues to evolve, IT teams have accelerated this shift from legacy, on-premises systems to cloud technology to more build, test, and deploy software, and fuel healthcare innovation. That includes failures in parts of a system that occur at similar times and have a common root cause.

Healthcare 246

Healthcare Artificial Intelligence Innovation Strategy 246

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 244

Best Practices Monitoring Wireless Traffic 244

Dynatrace

NOVEMBER 11, 2022

Who performed it? The build system sends an automated notification to Dynatrace just before initiating a deployment on this VM. The build system adds valuable information, such as: The approver of this deployment and their contact details. Create a new VM for this exercise and install a Dynatrace OneAgent.

DevOps 245

DevOps C++ Serverless Processing 245

The Netflix TechBlog

OCTOBER 26, 2021

We then used simple thought exercises based on flipping coins to build intuition around false positives and related concepts such as statistical significance, p-values, and confidence intervals. In this post, we’ll do the same for false negatives and the related concept of statistical power.

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Dynatrace

JUNE 1, 2023

Service level objectives (SLOs) provide a powerful framework for measuring and maintaining software performance, reliability, and user satisfaction. Teams can build on these SLO examples to improve application performance and reliability. In this post, I’ll lay out five SLO examples that every DevOps and SRE team should consider.

Traffic 173

Traffic Website Latency DevOps 173

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. Performance Efficiency. Operational excellence.

Azure 246

Azure Monitoring Virtualization Metrics 246

Scalegrid

APRIL 16, 2020

While this is a good way to get a rough estimate, your monthly cloud costs will indeed vary based on the amount of backups performed and your data transfer activity. This allows you to leverage external plugins and tools to better support your deployment and improve performance. ScaleGrid BYOC Pricing: $232/month. Reserved Instances.

Cloud 242

Cloud Azure AWS Database 242

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 246

AWS Best Practices Cloud Analytics 246

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

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. Each of these steps has the incident commander and incident participants moving through various systems and interfaces.

Open Source 213

Open Source AWS Google Speed 213

Dynatrace

APRIL 5, 2024

For a more proactive approach and to gain further visibility, other SLOs focusing on performance can be implemented. 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. In other words, where the application code resides.

Efficiency 264

Efficiency Traffic Tuning Metrics 264

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 111

Internet Internet AWS Performance 111

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. Our responsibilities include extensive A/B testing on a wide variety of devices by building highly performant and often custom UI experiences.

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Latency Cache Java Traffic 241

The Netflix TechBlog

SEPTEMBER 10, 2024

Finally, the device receives the message, and the action, such as “Show me Stranger Things on Netflix”, is performed. Sample system diagram for an Alexa voice command. Where aws ends and the internet begins is an exercise left to the reader. The other main use case was RENO, the Rapid Event Notification System mentioned above.

Latency 234

Latency Cache Tuning Efficiency 234

O'Reilly

APRIL 8, 2025

As they move into the workforce, they need to deepen their knowledge and become part of a team writing a software system for a paying customer. Sorting is important, but not for the reasons a junior developer might think; almost nobody will need to implement a sorting algorithm, except as an exercise.

Programming 52

Programming Code Software Software 52

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 165

Monitoring Mobile Social Media Open Source 165

O'Reilly

MARCH 11, 2025

When humans have the ability to perform magical feats of recall or calculation but not to create something profoundly new out of what they have learned, we dont call them geniuses. That is, the future belongs to t hose who are exercising the intelligence and insight that AI itself does not have. We call them idiot savants.

Artificial Intelligence 52

Artificial Intelligence Hardware Website Media 52

O'Reilly

AUGUST 13, 2024

“That’s what the data says” is a variation—“the data” doesn’t say much if you don’t know how it was collected and how the data analysis was performed. That’s what GPS says”—well, GPS is usually right, but I have seen GPS systems tell me to go the wrong way down a one-way street. After all, who will ever need to implement sort() ?

Social Media 125

Social Media Media Games Innovation 125

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 105

Engineering Innovation Systems Architecture 105

All Things Distributed

NOVEMBER 15, 2010

Werner Vogels weblog on building scalable and robust distributed systems. This incredible power is available for anyone to use in the usual pay-as-you-go model, removing the investment barrier that has kept many organizations from adopting GPUs for their workloads even though they knew there would be significant performance benefit.

AWS 125

AWS Programming Latency Architecture 125

O'Reilly

JANUARY 17, 2023

.”) So now you tweak the classifier’s parameters and try again, in search of improved performance. You might say that the outcome of this exercise is a performant predictive model. Second, this exercise in model-building was … rather tedious? How well did it perform? That’s sort of true.

Tuning 145

Tuning Open Source Software Software 145

O'Reilly

JUNE 15, 2023

Governance is not a “once and done” exercise. And we should define current best practices in the management of AI systems and make them mandatory , subject to regular, consistent disclosures and auditing, much as we require public companies to regularly disclose their financials.

Government 130

Government Best Practices Energy Internet 130

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 55

Performance Benchmarking Cache Storage 55

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. It helps people to understand the complex systems they are working with. designing systems that document themselves. Enterprise Architects are smart people.

DevOps 72

DevOps Architecture Technology Technology 72

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 58

Virtualization Performance C++ Database 58

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++ 84

C++ Open Source Database Programming 84

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 Design 43

O'Reilly

OCTOBER 19, 2021

The applications must be integrated to the surrounding business systems so ideas can be tested and validated in the real world in a controlled manner. but to reference concrete tooling used today in order to ground what could otherwise be a somewhat abstract exercise. Why did something break? Who did what and when?

DevOps 145

DevOps Software Engineering Open Source Infrastructure 145

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. They reported a performance impact as low as 0.3% and finding over 1000 bugs, including security-critical ones. Making a choice was not optional, as the sage pointed out.

C++ 70

C++ Programming Code Google 70

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 98

Traffic Cache Monitoring Database 98

Percona

JULY 3, 2023

With Enterprise Linux 7 nearing its end-of-life date, the Percona Monitoring and Management (PMM) team has done a significant update to the base operating system we build our images on top of. we’re making PMM publicly available on a newer base operating system based on Enterprise Linux 9 (EL9), specifically Oracle Linux 9.

Open Source 98

Open Source Metrics Monitoring Servers 98