Adrian Cockcroft

APRIL 18, 2018

Juvenal Photo taken in Lisbon Portugal by Adrian Cockcroft The documentation for most monitoring tools describes how to use that tool in isolation, often as if no other tools exist, but sometimes with ways to import or export some of the data to other tools. What if your monitoring systems fail? “Quis custodiet ipsos custodes?”?—?Juvenal

Monitoring 40

Monitoring Systems Virtualization Metrics 40

HammerDB

APRIL 19, 2023

Regardless of whether the computing platform to be evaluated is on-prem, containerized, virtualized, or in the cloud, it is crucial to consider several essential factors. Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. Operating System: Ubuntu 22.04

Performance 54

Performance Benchmarking Cache Storage 54

HammerDB

OCTOBER 23, 2023

With a simple example such as this, it would not necessarily be expected for the additional network traffic to be significant between the 2 approaches. However, with more complex application logic this network round trip soon becomes a key focus area for improving performance. On MySQL, we saw a 1.5X performance advantage.

Benchmarking 62

Benchmarking Database Network C++ 62

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Elastic File System (EFS). Amazon ElastiCache (see AWS documentation for Memcached and Redis ). Dynatrace news. Amazon Aurora. Amazon API Gateway. Amazon CloudFront. Amazon Cognito.

AWS 134

AWS Metrics IoT Storage 134

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Elastic File System (EFS). Amazon ElastiCache (see AWS documentation for Memcached and Redis ). Dynatrace news. Amazon Aurora. Amazon API Gateway. Amazon CloudFront. Amazon Cognito.

AWS 132

AWS Metrics IoT Storage 132

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100.

Best Practices 52

Best Practices Design Tuning Database 52

Dynatrace

JULY 10, 2019

What Dynatrace deployment is the best fit for your technology stack, and is the OneAgent compatible with your system? Virtualization can be a key player in your process’ performance, and Dynatrace has built-in integrations to bring metrics about the Cloud Infrastructure into your Dynatrace environment. OneAgent & cloud metrics.

Java 132

Java Best Practices Metrics Azure 132

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Some disruption might occur, but it will be minimal. Fault tolerance aims for zero downtime and data loss.

Availability 105

Availability Database Open Source Hardware 105

Brendan Gregg

JULY 14, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. A time where you can pose arbitrary questions of the system, and it can answer them. BPF is in the Linux kernel. ## Why Your Book?

Systems 40

Systems Performance Education Technology 40

Enprowess

SEPTEMBER 7, 2021

Real-time software system – Collaboration tools used for video/audio conferencing, document writing, Chat applications, etc. It helps isolated bugs quickly and reduces system downtime. Network: Node.js The performance of React improves because of the Virtual DOM algorithm. Faster virtual DOM.

Open Source 52

Open Source Virtualization Programming Servers 52

Percona

JULY 7, 2023

HA in PostgreSQL databases delivers virtually continuous availability, fault tolerance, and disaster recovery. Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. there cannot be high availability.

Availability 83

Availability Open Source Architecture Database 83

Percona

APRIL 12, 2023

Instead of relational (SQL) databases defined primarily through a hierarchy of related sets via tables and columns, their non-relational structure used a system of collections and documents. MongoDB is a non-relational (NoSQL), document-based database program that is commonly referred to as source-available.

Open Source 81

Open Source Programming Database Servers 81

Dynatrace

OCTOBER 17, 2019

We’re currently in a technological era where we have a large variety of computing endpoints at our disposal like containers, Platform as a Service (PaaS), serverless, virtual machines, APIs, etc. with more being added continually.

Code 107

Code Infrastructure DevOps Serverless 107

Randon ASCII

JULY 11, 2022

I’d been testing on a virtual machine in a data center that I had access to, purely because this machine has an internet connection that runs at over 2 Gbps. But I’d also recorded an ETW trace to understand where CPU time in the Network Service utility process was going, and I’d noticed some time being spent in ntoskrnl.exe!KiPageFault:

Cache 105

Cache Energy Google Processing 105

The Morning Paper

JANUARY 21, 2020

The document runs to 87 pages, so I’m going to cover the material across two posts. The Internet itself, over which these systems operate, is a dynamically distributed network spanning national borders and policies with no central coordinating agent. Moreover: Causality is complex and networked.

Internet 98

Internet Internet Strategy Energy 98

Enprowess

JANUARY 11, 2022

Web apps allow you to break the traditional constraints of the desktop and mobile operating systems and provide freedom to experiment with different varieties of software. React got popular due to the virtual document object model (DOM) which enables it to enhance performance of web apps and PWA significantly.

Virtualization 64

Virtualization Website Speed Mobile 64

Percona

AUGUST 1, 2023

Because of its NoSQL origin and document architecture design, MongoDB is much more flexible and scalable than SQL databases such as MySQL. Many connectors allow the use of Windows Active Directory (AD) systems to talk with LDAP. Encrypting traffic ensures that no one can “sniff” sensitive data on the network.

Best Practices 40

Best Practices Transportation Open Source Traffic 40

HammerDB

FEBRUARY 25, 2021

On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute. To benchmark a database we introduce the concept of a Virtual User. For this reason we need to implement our database sessions in the form of operating system threads. The Python GIL.

Programming 67

Programming Benchmarking Virtualization C++ 67

O'Reilly

NOVEMBER 21, 2019

In a classic 1983 paper , cognitive psychologist Lisanne Bainbridge drew attention to a curious irony: so-called “automated” systems were, in practice, usually attended by one or more human operators. The more advanced the system, she observed, “the more crucial…the contribution of the human operator.”

Processing 84

Processing Programming Virtualization Technology 84

Smashing Magazine

FEBRUARY 2, 2022

This problem is more apparent on unreliable and slow networks and lower-end devices. On design systems, CSS/JS and UX. Users can browse the Internet using slow and unreliable networks, so minification, optimization, and code-splitting of JavaScript files ensure that the user downloads the smallest file possible. Large preview ).

Code 91

Code Performance Network Website 91

Testsigma

AUGUST 24, 2020

Lack of Testability Support in Products: A test automation system is a very basic requirement for Continuous Testing. Teams often resort to using in-house test automation tools or frameworks which are neither well-documented nor well-maintained. Common Challenges. With in-house tools/frameworks, you have the benefit of code-ownership.

Testing 69

Testing Open Source Scalability Latency 69

Brendan Gregg

DECEMBER 31, 2018

eBPF should stand for something meaningful, like Virtual Kernel Instruction Set (VKIS), but due to its origins it is extended Berkeley Packet Filter. It can be used for many things: network performance, firewalls, security, tracing, and device drivers. Perhaps you'd like a new year's resolution: learn eBPF! Beginner ## 1.

C++ 52

C++ Virtualization Programming Code 52

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

KeyCDN

OCTOBER 10, 2018

That’s why Google set out to develop an open source system that would simplify the “deployment, scaling and operations” of containerized applications across multiple hosts. Kubernetes Architecture A Kubernetes cluster is a network of containers capable of communicating with each other.

Virtualization 47

Virtualization Open Source Network Architecture 47

Abhishek Tiwari

JANUARY 6, 2018

Kube-ops-view provides read-only system dashboard. auto-completion of commands, auto-suggestions, in-line documentation. Sysdig is container troubleshooting tool which captures system calls and events from the Linux kernel. Sysdig also makes it possible to create trace files for system activity. Kube-ops-view.

Open Source 111

Open Source DevOps Storage Engineering 111

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. Leigh Capili (DevAdv) demos how to launch apps from Git using Kubernetes orchestration, Ignite virtualization, and GitOps management.

Open Source 40

Open Source AWS Lambda Serverless 40

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. Leigh Capili (DevAdv) demos how to launch apps from Git using Kubernetes orchestration, Ignite virtualization, and GitOps management.

Open Source 40

Open Source AWS Lambda Serverless 40

Dotcom-Montior

DECEMBER 8, 2021

Systems, web applications, servers, devices, etc., SREs and DevOps teams can use these incidents to build back better and improve their systems and services. Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation.

Social Media 90

Social Media Monitoring Latency DevOps 90

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. Integration Testing – Integration and working of different systems together are tested using integration testing. Operating Systems- Windows, iOS, Android, etc. You’d be thinking of a no right?

Mobile 82

Mobile Testing Hardware C++ 82

IO River

NOVEMBER 2, 2023

It’s not just limited to cloud resources like AWS and Azure; Terraform is versatile, extending its capabilities to key performance areas like Content Delivery Network (CDN) management, ensuring efficient content delivery and optimal user experience.‍Started ‍AutomationCode-based systems also shine in automation.

Open Source 52

Open Source DevOps AWS Infrastructure 52

O'Reilly

DECEMBER 2, 2019

The most obvious change 5G might bring about isn’t to cell phones but to local networks, whether at home or in the office. High-speed networks through 5G may represent the next generation of cord cutting. Those waits can be significant, even if you’re on a corporate network. Let’s get back to home networking.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Alex Russell

MAY 9, 2022

Only teams that master their systems can make intentional trade-offs. Panglossian nonsense. --> Organisations that serve their tools tread water no matter how advanced their technology, while groups that intentionally manage systems can succeed on any stack. [1]. Performance isn't a binary and there are no silver bullets.

Performance 86

Performance Latency Metrics Engineering 86

Testsigma

MAY 5, 2021

Plus, there are multiple versions of operating systems and screen resolutions that our users browse content on. . Plus, it’s a cloud-based testing platform that supports testing on both real devices and virtual devices. with Safari at 8.87%. Picture Credit: Kinsta. According to Sweor , users take only 0.05 Picture Credit: BrowserStack.

Testing Tools 74

Testing Tools Testing Internet Internet 74

IO River

NOVEMBER 2, 2023

This level of granularity is not found in UI-managed systems. AutomationCode-based systems also shine in automation. Terraform's declarative nature makes this adaptation straightforward.‍Consider an example where a company is running multiple virtual machines (VMs) on a cloud provider.

Open Source 40

Open Source DevOps AWS Infrastructure 40

Smashing Magazine

JANUARY 11, 2021

Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. You can download the spreadsheet as Google Sheets, Excel, OpenOffice document or CSV. If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled 3G network (e.g. Large preview ). 300ms RTT, 1.6

Performance 145

Performance Cache Media Metrics 145

Testsigma

FEBRUARY 18, 2020

Machine learning: a feature of AI that provides computer systems with the ability to automatically learn and improve from previous experience without being explicitly programmed. Deep learning: employs artificial neural networks that keep learning constantly by processing both negative and positive data.

Artificial Intelligence 52

Artificial Intelligence Healthcare Programming Logistics 52

Dynatrace

AUGUST 5, 2019

While most of our cloud & platform partners have their own dependency analysis tooling, most of them focus on basic dependency detection based on network connection analysis between hosts. What is the network traffic going to be between services we migrate and those that have to stay in the current data center?

Cloud 31

Cloud Traffic Database Network 31