The Netflix TechBlog

JANUARY 10, 2024

Since then, the video pipeline has undergone substantial improvements and broad expansions: Starting with Standard Dynamic Range (SDR) at Standard-Definitions , we expanded the encoding pipeline to 4K and High Dynamic Range (HDR) which enabled support for our premium offering. The results are saved to a database so they can be reused.

Processing 229

Processing Media Latency Innovation 229

The Netflix TechBlog

AUGUST 13, 2020

You’re half awake and wondering, “Is there really a problem or is this just an alert that needs tuning? Telltale learns what constitutes typical health for an application, no alert tuning required. For example, a latency increase is less critical than error rate increase and some error codes are less critical than others.

Monitoring 210

Monitoring Tuning Traffic Metrics 210

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.

Traffic 279

Traffic Metrics Systems Strategy 279

Percona

AUGUST 30, 2023

If a PostgreSQL user wants to change these values, they need to recompile the PostgreSQL from the source code. This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. Database level setting All options discussed so far have a global scope.

Database 101

Database Servers Open Source Tuning 101

High Scalability

AUGUST 24, 2021

If you have experience in hosting and with the WordPress stack, have worked with Ubuntu or Debian-based systems, and cutting-edge technologies, such Ansible and LXC, you should definitely check us out and apply here ! We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Benchmarking 100

High Scalability

OCTOBER 27, 2021

If you have experience in hosting and with the WordPress stack, have worked with Ubuntu or Debian-based systems, and cutting-edge technologies, such Ansible and LXC, you should definitely check us out and apply here ! We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Benchmarking 100

High Scalability

SEPTEMBER 29, 2021

If you have experience in hosting and with the WordPress stack, have worked with Ubuntu or Debian-based systems, and cutting-edge technologies, such Ansible and LXC, you should definitely check us out and apply here ! We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Benchmarking 100

Percona

APRIL 12, 2023

They came up with a horizontally scalable NoSQL database. 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. 2016: The company adds service-loaded MongoDB Professional to its mix.

Open Source 81

Open Source Programming Database Servers 81

High Scalability

SEPTEMBER 15, 2021

If you have experience in hosting and with the WordPress stack, have worked with Ubuntu or Debian-based systems, and cutting-edge technologies, such Ansible and LXC, you should definitely check us out and apply here ! We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Benchmarking 100

Percona

OCTOBER 17, 2023

Many changes and new features are brought to the system, and as part of keeping in tune with the changes and how they can impact us, we go through the changes to better understand them. The dynamic allocation might have flaws, but it’s definitely a good addition. From that, this article is born.

Metrics 100

Metrics C++ Storage Database 100

Percona

AUGUST 27, 2018

Database administrators with appropriate privileges can associate virtual CPUs with resource groups and assign threads to these groups. Then we need to see IF implementing the tuning will work or not. It is possible to do more tuning in the case that ETL is too compromised. Currently, CPU affinity (i.e., Will this work?

Tuning 44

Tuning Virtualization Testing Servers 44

Dynatrace

MAY 16, 2019

Calls to database. Time spent in calls to database. This metric calculates the number successful requests (as defined by the respective service failure detection ) with the HTTP status code 200 (which is implicitly only web requests and web services) that have a request attribute mime type with the value text/html. Failure rate.

Metrics 116

Metrics Analytics Programming Monitoring 116

The Netflix TechBlog

FEBRUARY 9, 2021

Plans & Offers Definitions Let’s define what a plan and an offer is at Netflix. This platform unlocks tremendous business value since product-oriented teams are now free to use the platform to experiment with different product offerings for our global audience, with little to no code changes required.

Engineering 142

Engineering Scalability Architecture Innovation 142

SQL Performance

APRIL 8, 2020

It occurred to me that both the naming confusion, and the confusion around whether there's a persistency aspect to table expressions, can be cleared with a better understanding of the fundamentals of our field of relational database management systems. In my examples I'll use a sample database called TSQLV5. Date (O'Reilly 2015).

C++ 143

C++ Azure Database Servers 143

KeyCDN

OCTOBER 31, 2018

PHPStorm PHPStorm streamlines application development by offering integration with relational databases and other PHP tools. In addition to allowing you to create web applications without the need for a server, this tool supports all of the advanced features you’d expect from a modern IDE like code hinting and completion.

Development 57

Development Open Source Java AWS 57

SQL Performance

DECEMBER 9, 2020

You can create supporting tables in the user database if needed. Use the following code to run a test with base CTE cardinality of 2 (requires 5 additional levels of CTEs): DECLARE @low AS BIGINT = 1 , @high AS BIGINT = 100000000 ; WITH. Here’s the dummy table definition: CREATE TABLE dbo. You can add hints as needed.

C++ 114

C++ Servers Testing Processing 114

SQL Performance

JANUARY 11, 2021

So when their compiled application sends ad hoc queries to SQL Server, particularly as a prepared statement, and when we don't have the freedom to add or change indexes, several tuning opportunities are immediately off the table. We'd definitely prefer to change the query, or the indexes, if we could. TheThings. (

Cache 59

Cache Tuning Database Performance 59

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. All the databases that HammerDB tests implement a form of MVCC (multi-version concurrency control). On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute.

Programming 67

Programming Benchmarking Virtualization C++ 67

Brendan Gregg

FEBRUARY 9, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. It definitely works on 4.14, if you can run that, with CPUs that support pcid (check /proc/cpuinfo). Much of my testing was on Linux 4.14.11 and 4.14.12 1024 nopti: 922336 1024 6.59

Performance 75

Performance Benchmarking Cache Tuning 75

SQL Performance

DECEMBER 9, 2020

You can create supporting tables in the user database if needed. Use the following code to run a test with base CTE cardinality of 2 (requires 5 additional levels of CTEs): DECLARE @low AS BIGINT = 1 , @high AS BIGINT = 100000000 ; WITH. Here’s the dummy table definition: CREATE TABLE dbo. You can add hints as needed.

C++ 61

C++ Servers Testing Processing 61

Percona

MARCH 7, 2019

In other words, the time the CPU was executing user code, such as MySQL. There could be more, but this particular query was definitely hurting the performance of the server. It’s important to understand where the CPU time is being consumed: user space, system space, iowait, and so on. Drop average query time from 20s to 661ms.

C++ 99

C++ Traffic Servers Monitoring 99

High Scalability

NOVEMBER 25, 2019

Java used to power core file system code. Python used to power client-side code, certain microservices, migration scripts, internal scripts. Chokepoint : Even sharded Berkeley DB was choking under the stress and there was a database crash with recovery taking hours, it had to be replaced. Cloud Platform. Google cloud.

Architecture 52

Architecture Cache Azure Storage 52

SQL Performance

SEPTEMBER 2, 2021

A lot of things change over the course of a few major versions of our favorite database platform. SQL Server Split String Replacement Code with STRING_SPLIT. He spent a lot of time fine-tuning this CLR function to efficiently parse a string. UPDATE: September 2nd, 2021 (Originally published July 26th, 2012.).

C++ 59

C++ Servers Testing Database 59

Brendan Gregg

FEBRUARY 8, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. It definitely works on 4.14, if you can run that, with CPUs that support pcid (check /proc/cpuinfo). Much of my testing was on Linux 4.14.11 and 4.14.12 1024 nopti: 922336 1024 6.59

Performance 40

Performance Benchmarking Cache Tuning 40

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

O'Reilly

JANUARY 17, 2023

Figuring out what kinds of problems are amenable to automation through code. So it behooves a software developer to spot what portions of human activity can be properly automated away through code, and then build that. Because if companies use code to automate business rules, they use ML/AI to automate decisions.

Tuning 130

Tuning Open Source AWS Software 130

O'Reilly

NOVEMBER 28, 2023

If we asked whether their companies were using databases or web servers, no doubt 100% of the respondents would have said “yes.” And there are tools for archiving and indexing prompts for reuse, vector databases for retrieving documents that an AI can use to answer a question, and much more. We’ll say more about this later.)

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

Smashing Magazine

OCTOBER 22, 2021

class RoomSchema extends Schema { constructor() { super(); this.teams = new ArraySchema(); this.ball = new Ball(); this.players = new MapSchema(); } } defineTypes(RoomSchema, { teams: [Team], // an Array of Team ball: Ball, // a single Ball instance players: { map: Player } // a Map of Players }); Note : Definition of the Team class is omitted.

Games 95

Games Servers Database Virtualization 95