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. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Networking. Casey Rosenthal (traffic and chaos) Models of Availability.

Tuning 52

Tuning AWS Best Practices Network 52

The Netflix TechBlog

AUGUST 30, 2021

The challenge, then, is to be able to ingest and process these events in a scalable manner, i.e., scaling with the number of devices, which will be the focus of this blog post. When a new hardware device is connected, the Local Registry detects and collects a set of information about it, such as networking information and ESN.

Latency 213

Latency Traffic Transportation Cloud 213

The Netflix TechBlog

OCTOBER 19, 2020

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. The process started with manual pull of member account information that was part of the session.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

IO River

NOVEMBER 2, 2023

Enter the concept of Content Delivery Networks (CDN) with Multiple Origins Load Balancing. Think of a CDN Load Balancer (or LB, if you like to keep things short and sweet) as the internet’s traffic police. It takes on the crucial role of directing web traffic across various data centers, known as “origins.” What is “Origin”?An

Traffic 40

Traffic Cache Network Servers 40

Dynatrace

MAY 1, 2020

Network measurements with per-interface and per-process resolution. OneAgent for the ARM platform collects a number of network metrics: input and output traffic measured in bytes and packets, retransmissions, and connectivity. Network metrics are also collected for detected processes.

Java 132

Java Hardware Tuning Metrics 132

Dynatrace

JUNE 26, 2020

Dynatrace Synthetic Monitoring helps you quickly verify if your application is delivering the expected end user experience by offering an outside-in view of all your applications and services, independent of real traffic. So stay tuned! HTTP monitor locations use the same set of IP addresses as the browser monitoring locations.

Monitoring 249

Monitoring Azure AWS Traffic 249

Scalegrid

JANUARY 25, 2024

Effective management of memory stores with policies like LRU/LFU proactive monitoring of the replication process and advanced metrics such as cache hit ratio and persistence indicators are crucial for ensuring data integrity and optimizing Redis’s performance. This plays a crucial role in supervising the replication process.

Metrics 130

Metrics Monitoring Latency Cache 130

IO River

NOVEMBER 15, 2023

The OSI Model is like a layer cake of how data moves through networks. This means it specifically looks at the content of the data (like the writing inside our letters from the analogy) rather than just the envelope.So, what is the difference between a Firewall at the application level and network level?Network-level

Traffic 52

Traffic Network Logistics Architecture 52

Percona

DECEMBER 13, 2023

MySQL 8 introduces Error Log Filtering as a mechanism to fine-tune the error log, allowing administrators to focus on the most critical issues. This is particularly beneficial in high-traffic environments where minimizing log noise is crucial for efficient log analysis.

Database 91

Database Open Source Tuning Traffic 91

IO River

NOVEMBER 2, 2023

The OSI Model is like a layer cake of how data moves through networks. This means it specifically looks at the content of the data (like the writing inside our letters from the analogy) rather than just the envelope.So, what is the difference between a Firewall at the application level and network level?Network-level

Traffic 40

Traffic Network Logistics Architecture 40

SQL Performance

APRIL 15, 2020

This capability is essential when performance tuning since query events include discrete CPU and IO metrics as well as runtime parameters, which are key for troubleshooting query performance problems such as parameter sniffing. Network hit from the ADS Profiler extension (4-minute range). For some reason this thing will not go away!

Azure 96

Azure Database Tuning Network 96

Dynatrace

MAY 9, 2019

And it added to the network traffic in terms of new version distribution. “How does the new process compare to the old one exactly?” Stay tuned for more announcements on other changes and improvements related to OneAgent installer for Windows, coming to this Dynatrace Blog page shortly! And that’s it.

Storage 115

Storage Tuning Traffic Architecture 115

Percona

APRIL 17, 2023

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. systemctl stop tuned $ systemctl disable tuned Dirty ratio The dirty_ratio is the percentage of total system memory that can hold dirty pages.

Best Practices 52

Best Practices Design Tuning Database 52

Percona

OCTOBER 18, 2023

It’s a complex process involving various factors and meticulous planning. Today, we’ll be taking a deep dive into the intricacies of database migration, along with specific solutions to help make the process easier. Look closely at your current infrastructure (hardware, storage, networks, etc.)

Open Source 90

Open Source Database Hardware Strategy 90

Dynatrace

DECEMBER 8, 2020

As a result, e xisting application security approaches can’t keep up with this speed and vari ability of modern development processes. . With DevSecOps processes having shifted security testing “left”, will the teams have enough time to manually analyze, assess, and manage risks based on sampled or scheduled scan results?

Cloud 280

Cloud Open Source Internet Internet 280

Official Blog - World Web Technology

FEBRUARY 23, 2023

Of all traffic, 53.3% Yes, SEO is a long-term approach, but it offers some unparalleled advantages to businesses in terms of brand recognition, visibility, reputation, and of course, web traffic and revenues. Stay tuned! You can stop such practices now and focus on your specific domain to get more traffic and leads.

Google 52

Google Traffic Social Media Website 52

The Netflix TechBlog

JANUARY 10, 2024

Future blogs will provide deeper dives into each service, sharing insights and lessons learned from this process. The Netflix video processing pipeline went live with the launch of our streaming service in 2007. The Netflix video processing pipeline went live with the launch of our streaming service in 2007.

Processing 229

Processing Media Latency Innovation 229

Alex Russell

MARCH 31, 2022

Like every other successful platform, the web operates on a finely tuned understanding of risk and trust , and deprecations are particularly explosive. [2] De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. Trust Falls #. Which way should the policy go?

Cache 82

Cache Government Traffic Network 82

KeyCDN

AUGUST 15, 2019

Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. Just because everything works perfectly during production testing doesn’t mean that will be the case when your website is flooded with traffic.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Dynatrace

NOVEMBER 20, 2019

Network measurements with per-interface and per-process resolution. OneAgent for Z/Linux collects a number of network metrics: input and output traffic measured in bytes and packets, retransmissions, and connectivity. Network metrics are also collected for detected processes.

Availability 30

Availability Hardware Java Tuning 30

Particular Software

APRIL 9, 2018

What is the network throughput? Every software system is dependent on a few types of infrastructure (CPU, memory, storage, network), so it's no surprise that there are lots of off-the-shelf tools that provide this capability. Each component has a queue of messages to process, just like the attractions in a theme park.

Systems 40

Systems Infrastructure Monitoring Tuning 40

Dynatrace

AUGUST 8, 2019

Network measurements with per-interface and per-process resolution. OneAgent for Z/Linux collects a number of network metrics: input and output traffic measured in bytes and packets, retransmissions, and connectivity. Network metrics are also collected for detected processes.

Availability 25

Availability Hardware Java Tuning 25

KeyCDN

SEPTEMBER 20, 2018

Error tracking is the process of proactively identifying issues and fixing them as quickly as possible. Not all back-end errors affect the user experience, but keeping track of them can prove helpful when tuning your app. More traffic is coming from smart devices every year, so don’t neglect mobile testing!

Strategy 67

Strategy Monitoring Website Google 67

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

Brendan Gregg

SEPTEMBER 5, 2017

There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). On Linux, containers are a combination of namespaces (restricting what a process sees) and cgroups (similar to Solaris resource controls).

Virtualization 76

Virtualization AWS Engineering Hardware 76

The Netflix TechBlog

FEBRUARY 18, 2022

Event Prioritization Considering the use cases were wide ranging both in terms of their sources and their importance, we built segmentation into the event processing. We thus assigned a priority to each use case and sharded event traffic by routing to priority-specific queues and the corresponding event processing clusters.

Systems 334

Systems Traffic Architecture Mobile 334

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. Logs and background requests are examples of this type of traffic.

Traffic 252

Traffic Metrics Infrastructure Architecture 252

O'Reilly

SEPTEMBER 19, 2023

And that brings our story to the present day: Stage 3: Neural networks High-end video games required high-end video cards. You can download these models to use out of the box, or employ minimal compute resources to fine-tune them for your particular task. We do this all the time, when we ask “what if?”

Hardware 102

Hardware Storage Big Data Blockchain 102

Smashing Magazine

AUGUST 9, 2021

We would have been able to stop bundling resources, stop sharding our resources across multiple servers, and heavily streamline the page-loading process. It also, however, takes a full network round trip to complete before anything else can be done on a connection. Websites would magically become 50% faster with the flip of a switch!

Transportation 145

Transportation Internet Internet Network 145

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. What Does It All Mean?

Network 107

Network Servers Cache Traffic 107

Smashing Magazine

AUGUST 22, 2021

As we will see, QUIC and HTTP/3 indeed have great web performance potential, but mainly for users on slow networks. If your average visitor is on a fast cabled or cellular network, they probably won’t benefit from the new protocols all that much. An often used metaphor is that of a pipe used to transport water. Congestion Control.

Performance 107

Performance Network Latency Servers 107

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. Performant – DynamoDB consistently delivers single-digit millisecond latencies even as your traffic volume increases.

Internet 128

Internet Internet AWS Performance 128