Dynatrace

FEBRUARY 4, 2021

As a discipline, SRE focuses on improving software system reliability across key categories including availability, performance, latency, efficiency, capacity, and incident response. At a system level, SRE specialists develop tooling that coordinates releases and launches, evaluates system architecture readiness, and meets system-wide SLOs.

Engineering 170

Engineering DevOps Government Latency 170

Dynatrace

DECEMBER 22, 2021

Metrics are measures of critical system values, such as CPU utilization or average write latency to persistent storage. They are particularly important in distributed systems, such as microservices architectures. A platform approach, on the other hand, presents a more effective option for understanding observability as a whole.

Artificial Intelligence 171

Artificial Intelligence Metrics Architecture DevOps 171

The Netflix TechBlog

MARCH 4, 2024

In this blog post, we present our project on Auto Remediation, which integrates the currently used rule-based classifier with an ML service and aims to automatically remediate failed jobs without human intervention. Upon further profiling, we found that most of the latency came from the candidate generated step (i.e.,

Tuning 210

Tuning Efficiency Big Data Engineering 210

The Netflix TechBlog

AUGUST 30, 2021

In this blog post, we will focus on the latter feature set. 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. In particular, the Kafka integration is the most relevant for this blog post.

Latency 213

Latency Traffic Transportation Hardware 213

Adrian Cockcroft

AUGUST 1, 2022

photo by Adrian I gave a talk at Monitorama in Portland Oregon in June, which set out the idea that carbon is just another metric to monitor, and that in a few years most of the monitoring and performance tuning tools are going to be reporting and optimizing for carbon alongside latency, throughput, availability and cost.

AWS 52

AWS Virtualization DevOps Latency 52

John McCalpin

DECEMBER 6, 2016

The Xeon Phi x200 (Knights Landing) has a lot of modes of operation (selected at boot time), and the latency and bandwidth characteristics are slightly different for each mode. This reduces the number of “hops” required for request/response/coherence messages on the mesh, and should reduce both latency and contention.

Latency 40

Latency Cache Testing Systems 40

ACM Sigarch

MARCH 18, 2019

With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. This Part 1 discusses Bottleneck Analysis and Little’s Law, while Part 2 presents the M/M/1 Queue. To this end, we present three simple models that we find useful like Amdahl’s Law, split here into two blog posts. Answered in Part 2.).

Systems 60

Systems Latency Performance Analytics 60

ACM Sigarch

MARCH 25, 2019

With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. Part 1 previously discussed Bottleneck Analysis and Little’s Law, while this post (Part 2) presents the M/M/1 Queue. How many buffers are needed to track pending requests as a function of needed bandwidth and expected latency? and 1/S as ?.

Systems 53

Systems Latency Performance C++ 53

Brendan Gregg

JULY 2, 2021

Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization. biolatency Disk I/O latency histogram heat map. runqlat CPU scheduler latency heat map. biolatency Disk I/O latency histogram heat map. opensnoop Files opened table.

Latency 145

Latency Cache Energy Systems 145

Dotcom-Montior

NOVEMBER 24, 2021

Gone are the days of monolithic architecture. When we think of a system’s architecture, the first thing that may pop into your mind is the traditional client-server system, where a server was the shared resource among many different devices and machines, like printers, computes, clients, etc. Multi-Tier.

Systems 74

Systems Monitoring Hardware Network 74

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 swap issue is explained in the excellent article by Jeremy Cole at the Swap Insanity and NUMA Architecture. The CFQ works well for many general use cases but lacks latency guarantees.

Best Practices 52

Best Practices Design Tuning Database 52

The Morning Paper

MAY 28, 2019

We don’t talk about energy as often as we probably should on this blog, but it’s certainly true that our data centres and various IT systems consume an awful lot of it. An end-to-end architecture. Boosted race trees for low energy classification Tzimpragos et al., ASPLOS’19. Introducing race logic.

Energy 52

Energy Hardware Efficiency Architecture 52

The Netflix TechBlog

JUNE 13, 2023

Our previous blog post presented replay traffic testing — a crucial instrument in our toolkit that allows us to implement these transformations with precision and reliability. This blog post will delve into the techniques leveraged at Netflix to introduce these changes to production.

Traffic 279

Traffic Metrics Systems Strategy 279

The Netflix TechBlog

JANUARY 10, 2024

This introductory blog focuses on an overview of our journey. Future blogs will provide deeper dives into each service, sharing insights and lessons learned from this process. This architecture shift greatly reduced the processing latency and increased system resiliency.

Processing 229

Processing Media Latency Innovation 229

Alex Russell

JANUARY 30, 2024

The blog you're reading loads over a single connection in ~1.2 Regardless, I present the thinking behind them because it can provide teams with informed points of departure, and also because clarifying the ritual freakout taking place as INP begins to put a price on JavaScript externalities. and 75KiB of JavaScript.

Performance 90

Performance Network Mobile Speed 90

The Netflix TechBlog

MARCH 7, 2023

These media focused machine learning algorithms as well as other teams generate a lot of data from the media files, which we described in our previous blog , are stored as annotations in Marken. But we cannot search or present low latency retrievals from files Etc. Marken Architecture Marken’s architecture diagram is as follows.

Media 264

Media Latency Architecture Database 264

Brendan Gregg

JULY 2, 2021

Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization 1. biolatency Disk I/O latency histogram heat map 5. runqlat CPU scheduler latency heat map 10. biolatency Disk I/O latency histogram heat map 5.

Open Source 40

Open Source Latency Cache Energy 40

The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. The original assumptions and architectural choices were no longer viable.

Cache 224

Cache Latency Traffic Systems 224

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. While this abundance of dashboards and information is by no means unique to Netflix, it certainly holds true within our microservices architecture. What is Edgar?

Latency 296

Latency Transportation Engineering Traffic 296

Alex Russell

JULY 14, 2021

I've got a long blog post brewing on this, but jumping to the end, an operable definition is: A browser is an application that can register with an OS to handle http and https navigations by default. They are as helpless as users are to understand why an otherwise browser-presenting environment appears subtly, yet profoundly, broken.

Google 121

Google Mobile Engineering Internet 121

The Netflix TechBlog

FEBRUARY 9, 2021

For more background on Growth Engineering and the signup funnel, please have a look at our previous blog post that covers the basics. In particular, we’ll define plans and offers, review the legacy architecture and some of its shortcomings, and dig into our new architecture and some of its advantages.

Engineering 142

Engineering Scalability Architecture Innovation 142

The Netflix TechBlog

SEPTEMBER 3, 2021

Remote calls are never free; they impose extra latency, increase probability of an error, and consume network bandwidth. There are a number of utilities and conventions on how to use this message when it is present in an RPC request. FieldMask is a protobuf message. Bella Ciao Protobuf FieldMask is a simple, yet powerful concept.

Design 245

Design Java Efficiency Code 245

The Netflix TechBlog

FEBRUARY 20, 2019

Today we are excited to announce latency heatmaps and improved container support for our on-host monitoring solution?—?Vector?—?to Remotely view real-time process scheduler latency and tcp throughput with Vector and eBPF What is Vector? to the broader community. Vector is open source and in use by multiple companies.

Performance 211

Performance Latency Open Source Metrics 211

The Netflix TechBlog

DECEMBER 21, 2020

This article will list some of the use cases of AutoOptimize, discuss the design principles that help enhance efficiency, and present the high-level architecture. These principles reduce resource usage by being more efficient and effective while lowering the end-to-end latency in data processing. More processing resources.

Storage 203

Storage Latency Efficiency Data Engineering 203

The Netflix TechBlog

MARCH 13, 2020

As mentioned in our earlier blog post , Intel and Netflix have been collaborating on the SVT-AV1 encoder and decoder framework since August 2018. The teams have been working closely on SVT-AV1 development, discussing architectural decisions, implementing new tools, and improving compression efficiency.

Open Source 154

Open Source Efficiency C++ Speed 154

The Netflix TechBlog

MAY 5, 2021

In the future posts, we will do an architectural deep dive into the several components of Netflix Drive. To support such use cases, access control at the user workspace and project workspace granularity is extremely important for presenting a globally consistent view of pertinent data to these artists. A sample manifest file.

Media 174

Media Storage Architecture Cloud 174

The Netflix TechBlog

FEBRUARY 9, 2021

We need to be able to easily determine what imagery is present for a given platform, region, and language. Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. Here’s what the final architecture looked like.

Engineering 165

Engineering Storage Latency Entertainment 165

Smashing Magazine

JANUARY 11, 2021

Defining The Environment Choosing a framework, baseline performance cost, Webpack, dependencies, CDN, front-end architecture, CSR, SSR, CSR + SSR, static rendering, prerendering, PRPL pattern. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Large preview ).

Performance 145

Performance Cache Media Metrics 145

All Things Distributed

JANUARY 18, 2012

Amazon DynamoDB offers low, predictable latencies at any scale. Each service encapsulates its own data and presents a hardened API for others to use. While a service-oriented architecture addressed the problems of a centralized database architecture, each service was still using traditional data management systems.

Scalability 167

Scalability Database Ecommerce Latency 167

The Netflix TechBlog

DECEMBER 17, 2019

Requirements In a previous blog post, we discussed Delta , a data enrichment and synchronization platform. In our Delta blog post , we also described use cases beyond data synchronization, such as event processing. Go to step 1 if more chunks present. DBLog High Level Architecture. Designed with High Availability in mind.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Requirements In a previous blog post, we discussed Delta , a data enrichment and synchronization platform. In our Delta blog post , we also described use cases beyond data synchronization, such as event processing. Go to step 1 if more chunks present. DBLog High Level Architecture. Designed with High Availability in mind.

Database 212

Database Traffic Transportation Open Source 212

The Netflix TechBlog

NOVEMBER 12, 2019

To make this happen, we personalize many aspects of our service, including which movies and TV shows we present on each member’s homepage. In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. Why Is This Hard?

Metrics 124

Metrics Government Systems Testing 124

The Netflix TechBlog

NOVEMBER 12, 2019

To make this happen, we personalize many aspects of our service, including which movies and TV shows we present on each member’s homepage. In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. Why Is This Hard?

Metrics 100

Metrics Government Systems Testing 100

The Netflix TechBlog

NOVEMBER 12, 2019

To make this happen, we personalize many aspects of our service, including which movies and TV shows we present on each member’s homepage. In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. Why Is This Hard?

Metrics 100

Metrics Government Systems Testing 100

All Things Distributed

DECEMBER 12, 2013

Moreover, a GSI''s performance is designed to meet DynamoDB''s single digit millisecond latency - you can add items to a Users table for a gaming app with tens of millions of users with UserId as the primary key, but retrieve them based on their home city, with no reduction in query performance.

Games 130

Games Scalability Database Retail 130