Percona

JUNE 2, 2023

While not the first open source content management system (CMS), WordPress caught on like nothing before and helped spread open source to millions. And if your blog got Slashdotted or just a high level of traffic in general? Then you might need to delve into MySQL tuning and replicas. But mainstream users? Not so much.

Open Source 99

Open Source Traffic Tuning Database 99

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience. This is where large-scale system migrations come into play.

Traffic 279

Traffic Metrics Systems Strategy 279

Dynatrace

MAY 17, 2023

For that, we focused on OpenTelemetry as the underlying technology and showed how you can use the available SDKs and libraries to instrument applications across different languages and platforms. We’d like to get deeper insight into the host, the underlying operating system, and any third-party services used by our application.

Metrics 173

Metrics Monitoring Database Network 173

Brendan Gregg

DECEMBER 31, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. A video of the talk is on youtube : The slides are on slideshare : I love this talk as I get to share more about what the Performance and Operating Systems team at Netflix does, rather than just my work.

Tuning 61

Tuning AWS Best Practices Network 61

Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. A video of the talk is on youtube : The slides are on slideshare : I love this talk as I get to share more about what the Performance and Operating Systems team at Netflix does, rather than just my work.

Tuning 52

Tuning AWS Best Practices Network 52

IO River

NOVEMBER 2, 2023

‍Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. ‍But how does it decide where to send this traffic?

Traffic 52

Traffic Cache Servers Latency 52

Dynatrace

OCTOBER 7, 2020

Stay tuned for an upcoming blog series where we’ll give you a more hands-on walkthrough of how to ingest any kind of data from StatsD, Telegraf, Prometheus, scripting languages, or our integrated REST API. Once you send metrics via the OneAgent REST API, the relevant hosts are automatically enriched with all available monitoring dimensions.

Open Source 256

Open Source Metrics Analytics Tuning 256

Percona

DECEMBER 13, 2023

Error logging is a critical aspect of database administration, providing insights into issues, warnings, and errors that may affect the system’s stability and performance. MySQL 8 introduces Error Log Filtering as a mechanism to fine-tune the error log, allowing administrators to focus on the most critical issues.

Database 98

Database Open Source Tuning Traffic 98

Dynatrace

APRIL 26, 2022

DEM provides an outside-in approach to user monitoring that measures user experience (UX) in real time to ensure applications and services are available, functional, and well-performing across all channels of the digital experience, including web, mobile, and IoT. Endpoint monitoring (EM). Endpoints can be physical (i.e.,

Monitoring 206

Monitoring Social Media IoT Metrics 206

Scalegrid

JANUARY 25, 2024

Understanding Redis Performance Indicators Redis is designed to handle high traffic and low latency with its in-memory data store and efficient data structures. These essential data points heavily influence both stability and efficiency within the system. A reduced throughput could generally indicate that the server gets fewer queries.

Metrics 130

Metrics Monitoring Latency Cache 130

The Netflix TechBlog

AUGUST 30, 2021

For example, when running tests, the state of the device will change from “available for testing” to “in test.” System Setup Architecture The following diagram summarizes the architecture description: Figure 1: Event-sourcing architecture of the Device Management Platform.

Latency 213

Latency Traffic Transportation Hardware 213

IO River

NOVEMBER 2, 2023

Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. But how does it decide where to send this traffic?

Traffic 40

Traffic Cache Network Servers 40

Dynatrace

MAY 1, 2020

Other distributions like Debian and Fedora are available as well, in addition to other software like VMware, NGINX, Docker, and, of course, Java. Our mission is to provide automatic answers, including root cause analysis, for performance degradation across all these systems and environments, regardless of the underlying hardware architecture.

Java 133

Java Hardware Tuning Metrics 133

The Netflix TechBlog

OCTOBER 15, 2019

Another issue exists for the capture of schema changes, where some systems, like MySQL, don’t support transactional schema changes [1][2]. By their nature, they can only rely on the lowest common denominator of participating systems. That system quickly grew very complex and became difficult to maintain.

Transportation 192

Transportation Architecture Processing Storage 192

IO River

NOVEMBER 15, 2023

In technical terms, network-level firewalls regulate access by blocking or permitting traffic based on predefined rules. ‍At its core, WAF operates by adhering to a rulebook—a comprehensive list of conditions that dictate how to handle incoming web traffic. You've put new rules in place.

Traffic 52

Traffic Network Logistics Architecture 52

Percona

AUGUST 27, 2018

Resource groups permit assigning threads running within MySQL to particular groups so that threads execute according to the resources available to this group. MySQL determines, at startup, how many virtual CPUs are available. MySQL package installers for Linux systems should set this capability. Currently, CPU affinity (i.e.,

Tuning 46

Tuning Virtualization Testing Servers 46

IO River

NOVEMBER 2, 2023

In technical terms, network-level firewalls regulate access by blocking or permitting traffic based on predefined rules. At its core, WAF operates by adhering to a rulebook—a comprehensive list of conditions that dictate how to handle incoming web traffic. You've put new rules in place.

Traffic 40

Traffic Network Logistics Architecture 40

Percona

OCTOBER 18, 2023

Parallel run : Operating both the existing and new database system simultaneously during the transition, allowing for a seamless fallback in case of any issues. Resource allocation: Personnel, hardware, time, and money The migration to open source requires careful allocation (and knowledge) of the resources available to you.

Open Source 96

Open Source Database Hardware Strategy 96

Dynatrace

NOVEMBER 20, 2019

Having released this functionality in an Early Adopter Release with OneAgent version 1.173 and Dynatrace version 1.174 back in August 2019, we’re now happy to announce the General Availability of OneAgent full-stack monitoring for Linux on the IBM Z platform, sometimes informally referred to as Z/Linux.

Availability 31

Availability Hardware Java Tuning 31

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. The main objective of this post is to share my experience over the past years tuning MongoDB and centralize the diverse sources that I crossed in this journey in a unique place. 25.84 - Total 21.04

Best Practices 52

Best Practices Design Tuning Database 52

Particular Software

APRIL 9, 2018

Based on our experience running business systems in production, we know we need to monitor our theme park to make sure it's working properly. Luckily, there are tools in place that let us keep track of electricity and water usage, how much parking we have available, and how much trash the park generates. Welcome to Particular World.

Systems 40

Systems Infrastructure Monitoring Tuning 40

Adrian Cockcroft

NOVEMBER 13, 2023

A rough guide if you don’t have any better data is that with no traffic to a system it will be 10% utilization and use 30% of peak power, 25% utilization uses 50% of peak power, and at 50% utilization it uses 75% of peak power. I’ve written before about how to tune out retry storms. they are never really idle.

Energy 52

Energy Cloud Traffic Transportation 52

Dynatrace

DECEMBER 9, 2020

The flip side of speeding up delivery, however, is that each software release comes with the risk of impacting your goals of availability, performance, or any business KPIs. Typical Dynatrace use cases cover SLOs for service availability, web application performance, mobile application availability, and synthetic availability.

Metrics 152

Metrics Engineering Google Monitoring 152

Dynatrace

AUGUST 8, 2019

We’re happy to announce the Early Adopter Release of OneAgent full-stack monitoring for Linux on the IBM Z platform, sometimes informally referred to as Z/Linux (available with OneAgent version 1.173 and Dynatrace version 1.174). For details on available metrics, see our help page on host performance monitoring.

Availability 25

Availability Hardware Java Tuning 25

The Netflix TechBlog

FEBRUARY 18, 2022

To this end, we developed a Rapid Event Notification System (RENO) to support use cases that require server initiated communication with devices in a scalable and extensible manner. In this blog post, we will give an overview of the Rapid Event Notification System at Netflix and share some of the learnings we gained along the way.

Systems 334

Systems Traffic Architecture Mobile 334

Dynatrace

DECEMBER 8, 2020

Quickly understand the urgency of a vulnerability with answers to questions like What is the Common Vulnerability Scoring System (CVSS) score? But exclusively relying on the Common Vulnerability Scoring System (CVSS) rating will keep your team busy chasing false positives and make it hard to prioritize effectively.

Cloud 292

Cloud Open Source Internet Internet 292

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. Microbenchmark os::javaTimeMillis() on both systems. tsc $ time java TimeBench.

Speed 126

Speed Java AWS Virtualization 126

Alex Russell

MARCH 31, 2022

The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Like every other successful platform, the web operates on a finely tuned understanding of risk and trust , and deprecations are particularly explosive. [2] Shared caches must make sense within this value system.

Cache 82

Cache Government Traffic Network 82

The Netflix TechBlog

JUNE 14, 2023

The control group’s traffic utilized the legacy Falcor stack, while the experiment population leveraged the new GraphQL client and was directed to the GraphQL Shim. The AB experiment results hinted that GraphQL’s correctness was not up to par with the legacy system. The Replay Tester tool samples raw traffic streams from Mantis.

Traffic 353

Traffic Latency Cache Metrics 353

Rigor

SEPTEMBER 3, 2019

It’s about ensuring that your front-end is also working perfectly, that your site can deliver a delightful experience to your users or customers, and that it is functional – even when it’s experiencing up to seven or more times the typical traffic load. Traffic patterns outside of normal [RUM or Analytics].

Website 74

Website Cache Ecommerce Traffic 74

Official Blog - World Web Technology

MAY 12, 2023

It was a content management system first and today, WordPress has no boundaries. Stay tuned. High-performing Websites With Good Traffic One of the reasons why visitors keep coming to your website is the speed. You can develop personal blogs, professional business websites, e-commerce websites, and many more with WordPress.

Website 52

Website Development Scalability Architecture 52

The Morning Paper

OCTOBER 8, 2019

The core application of machine learning discussed in this paper is the model which orders available listings according to a guest’s likelihood of booking. “ This made the moment ripe for trying sweeping changes to the system.” Tuning the model. An ecosystem of models. ” You need to be this tall.

Network 82

Network Architecture Tuning Traffic 82

Smashing Magazine

MARCH 19, 2021

At the moment, around 35% of our mobile traffic is on iOS , so those users wouldn’t be getting the images faster, but encoding a large JPEG image only, or encoding both AVIF and JPEG files would unnecessarily bloat HTML which we wanted to avoid. Architecting Design Systems. Make Design Systems People Want to Use. UX, Design.

Mobile 140

Mobile Design Cache Code 140

Enprowess

MARCH 4, 2018

And whenever one server isn’t sufficient to serve the high traffic needs of your portal, you can scale your Liferay portal by adding additional servers. Basically when group of servers and other resources act like a single system and enable high availability is termed as “Clustering”.

Cache 52

Cache Transportation Media Traffic 52

The Netflix TechBlog

NOVEMBER 2, 2020

How viewers are able to watch their favorite show on Netflix while the infrastructure self-recovers from a system failure By Manuel Correa , Arthur Gonigberg , and Daniel West Getting stuck in traffic is one of the most frustrating experiences for drivers around the world. CRITICAL : This traffic affects the ability to play.

Traffic 252

Traffic Metrics Infrastructure Architecture 252

Apica

MAY 10, 2019

Apica provides load tests with 10 million+ simulated VUs for Hollywood at 800 GB/sec to measure the behavior of their systems, analyze any bottlenecks from the spike of simulated traffic, and assess any risks to the stability and availability of their streaming services before actual primetime.

Testing 40

Testing Performance Social Media Wireless 40

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. Microbenchmark os::javaTimeMillis() on both systems.

Speed 40

Speed Java AWS Virtualization 40