Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. [link] 2021 - [Trader 21] Tiffany Trader, “Cerebras Second-Gen 7nm Wafer Scale Engine Doubles AI Performance Over First-Gen Chip ,” [link] Apr 2021 - [Ghigoff 21] Yoann Ghigoff, et al., "BMC:

Performance 110

Performance Latency Cache Virtualization 110

Alex Russell

JANUARY 30, 2024

It's time once again to update our priors regarding the global device and network situation. seconds on the target device and network profile, consuming 120KiB of critical path resources to become interactive, only 8KiB of which is script. What's changed since last year? and 75KiB of JavaScript. These are generous targets.

Performance 90

Performance Network Mobile Speed 90

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

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

DECEMBER 23, 2020

For example, the PID namespace makes it so that a process can only see PIDs in its own namespace, and therefore cannot send kill signals to random processes on the host. In addition to the default Docker namespaces (mount, network, UTS, IPC, and PID), we employ user namespaces for added layers of isolation. User Namespaces.

Media 286

Media Metrics Systems Processing 286

Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. To update our global baseline from 2017, we want to update our priors on a few dimensions: The evolved device landscape. Modern network performance and availability. The Moto G4 , for example. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

Dynatrace

MAY 6, 2021

Linux: Amazon Linux AMI 2017.x. On the “Network overview” page, `Host group` filter suggestions are now properly displayed when a management zone is selected. Improved permission check to access process group settings and details page from process details page in case the user has permissions only in management zone.

Operating System 236

Operating System AWS Metrics Storage 236

The Symphonia

DECEMBER 6, 2017

We don’t recommend using this as a regular process for production use, but it might come in handy at development time. to a massively distributed CDN network a possibility. Lambda is not a good solution for handling long-running stateful processes, and Step Functions is effectively in the same place it was a year ago.

Serverless 40

Serverless Lambda AWS Traffic 40

The Netflix TechBlog

MAY 1, 2019

In late 2017, we received some critical feedback from the brothers on the Stranger Things 2 audio mix: in some scenes, there was a reduced sense of where sounds are located in the 5.1-channel This approach selects the audio bitrate based on network conditions at the start of playback. Media is provided in several qualities.

Engineering 274

Engineering Network Media Entertainment 274

Tim Kadlec

FEBRUARY 13, 2020

c]2017 Filament Group, Inc. function (){. }()); Network Priorities Out of Whack. The network priority issues are enough of a reason are enough to avoid this pattern in most situations. c]2017 Filament Group, Inc. I recommend using a throttled network setting to help make the issue even more apparent.).

Network 145

Network C++ Performance Processing 145

ACM Sigarch

APRIL 26, 2018

APU: Accelerated Processing Unit is the AMD’s Fusion architecture that integrates both CPU and GPU on the same die. BPU: Brain Processing Unit is the design of the AI chips by Horizon Robotics. They unveiled their first two embedded AI chips fabricated with TSMC 40nm process in December 2017: “Journey 1.0

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

All Things Distributed

MAY 19, 2017

We believe the central constraint in high throughput data processing has moved from compute and storage to the network. Aurora brings a novel architecture to the relational database to address this constraint, most notably by pushing redo processing to a multi-tenant scaleout storage service, purpose-built for Aurora.

Database 117

Database Design Cloud Storage 117

Tim Kadlec

JUNE 21, 2022

HTTP/3 work started in 2012 with Google working on QUIC, adopted by IETF in 2017, RFC’s published in June 2022. The TLS + QUIC layer makes UDP safer to use, but a lot of networks will likely still block for awhile. The RSVP problem: HTTP/3 might be blocked on the network or may not be enabled on the server. What and Why?

Network 64

Network Mobile Google Cache 64

O'Reilly

FEBRUARY 18, 2020

Up until 2017, the ML+AI topic had been amongst the fastest growing topics on the platform. After several years of steady climbing—and after outstripping Java in 2017—Python-related interactions now comprise almost 10% of all usage. Not necessarily: Java-related searches increased by 5% between 2017 and 2018. Coincidence?

Software Architecture 132

Software Architecture DevOps Data Engineering Architecture 132

Dynatrace

OCTOBER 17, 2019

And with today’s increasing financial, availability, performance and innovation requirements meaning applications need to be geographically dispersed to constantly changing dynamic powerhouses, it has become simply not possible to provision, update, monitor and decommissions them by only leveraging manual processes.

Code 111

Code Infrastructure DevOps Serverless 111

Smashing Magazine

AUGUST 10, 2023

The other issue is that the data I’m getting back is based on lab simulations where I can add throttling, determine the device that’s used, and the network connection, among other simulated conditions. On that note, it’s worth calling out that there are multiple flavors of network throttling. Real usage data would be better, of course.

Speed 81

Speed Monitoring Testing Network 81

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. [link] , 2021 [Trader 21] Tiffany Trader, “Cerebras Second-Gen 7nm Wafer Scale Engine Doubles AI Performance Over First-Gen Chip ,” [link] , Apr 2021 [Ghigoff 21] Yoann Ghigoff, et al.,

Performance 52

Performance Latency Cache Virtualization 52

The Netflix TechBlog

SEPTEMBER 13, 2021

Written by Jose Fernandez , Arthur Gonigberg , Julia Knecht , and Patrick Thomas In 2017, Netflix Studios was hitting an inflection point from a period of merely rapid growth to the sort of explosive growth that throws “how do we scale?” into every conversation.

Internet 220

Internet Internet Cloud Traffic 220

SQL Server According to Bob

MAY 19, 2019

The reduction effort started when we shipped SQL Server 2017 ( [link].) Networking Pump Threads. SQLPAL uses a dynamic set of networking, I/O pump threads to handle network requests. SQLPAL uses a dynamic set of async, I/O pump threads to handle non-network I/O requests. Async Pump Threads. Super Latching.

IoT 61

IoT Servers Development Cache 61

Smashing Magazine

DECEMBER 7, 2023

First, FID is a measure of the time it takes the page to start processing an interaction or the input delay. A more complete picture considers the input delay in addition to two other components: processing time and presentation delay. It only looks at the delay of the event process. Let’s walk through the process.

Traffic 95

Traffic Metrics Google Monitoring 95

Scalegrid

JULY 13, 2020

Recognized as the fastest growing database by popularity, PostgreSQL was named the DBMS of the year in both 2018 and 2017 by DB-Engines, and continues to grow in popularity in 2019. In fact, PostgreSQL is so popular, 11.5% Oracle does offer discounts on their pricing, where you can receive a 10% discount if you purchase online.

Open Source 244

Open Source Tuning C++ Database 244

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. The company had to compensate customers for their losses, including reimbursement for flights, accommodation, and $135,000 over tarmac delays.What Is The Process For Calculating Availability?By

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. The company had to compensate customers for their losses, including reimbursement for flights, accommodation, and $135,000 over tarmac delays.What Is The Process For Calculating Availability?By

Availability 52

Availability Social Media Traffic Games 52

All Things Distributed

SEPTEMBER 25, 2017

I'm also excited to announce today that we are launching an AWS Edge Network Location in the United Arab Emirates (UAE) in the first quarter of 2018. 2017 continues a busy year for AWS in the Middle East. We still have another five AWS Regions (and 14 Availability Zones) in China, France, Hong Kong, and Sweden.

Cloud 152

Cloud Education Energy Government 152

The Netflix TechBlog

JANUARY 22, 2021

channel surround sound in 2010, Dolby Atmos in 2017 , and adaptive bitrate audio in 2019. As such, it is common to compute DRC parameters at encode-time, when processing power and lookahead is ample. By Phill Williams and Vijay Gondi Introduction At Netflix, we are passionate about delivering great audio to our members.

Programming 269

Programming Mobile Network Testing 269

Smashing Magazine

JANUARY 21, 2021

After the latest redesign in late 2017, it was Ilya Pukhalski on the JavaScript side of things (part-time), Michael Riethmueller on the CSS side of things (a few hours a week), and yours truly, playing mind games with critical CSS and trying to juggle a few too many things. Moving From Automated Critical CSS Back To Manual Critical CSS.

Performance 145

Performance Cache Mobile Network 145

All Things Distributed

OCTOBER 25, 2018

That's where we built many pioneering networking technologies, our next-generation software for customer support, and the technology behind our compute service, Amazon EC2. In 2017, we brought the Amazon Global Network to Africa, through AWS Direct Connect. Since then, we have seen an acceleration in AWS adoption.

AWS 167

AWS Cloud Education Programming 167

Percona

APRIL 12, 2023

2017: MongoDB goes public, trading as MDB. and partners) and in the process, stifling the upstarts, the truly open source little folks dreaming big. The company also releases MongoDB Atlas, promoting it as the most cost-effective way to run MongoDB in the Cloud. Since then, the stock price has increased more than 600%.

Open Source 81

Open Source Programming Database Servers 81

Percona

AUGUST 15, 2023

This blog was originally published in February 2017 and was updated in August 2023. MySQL replication is a process in which data from a primary MySQL database is copied and sent to one or more secondary databases, known as replicas. Network Connectivity: Establish a reliable network connection between the primary and replica servers.

Servers 52

Servers Database Availability Traffic 52

The Netflix TechBlog

JULY 1, 2019

We then re-ran the automation and still saw the peaks but in the process we discovered that the issue seemed to only present itself on devices running a version of our SDK from 2015. those running the 2017 SDK?—?also Once we did manual testing on our older SDK version we were able to reproduce the issue in our development environment.

Cache 166

Cache Design Testing Development 166

Brendan Gregg

OCTOBER 28, 2017

For my first trip to Paris I gave the closing keynote at [EuroBSDcon 2017] on performance methodologies, using FreeBSD 11.1 EuroBSDcon 2017]: [link] [thread state analysis]: [link] [tstates.d]: [link] as an analysis target. It was a few days of work, which is really not bad.

Systems 52

Systems Performance C++ Operating System 52

CSS - Tricks

APRIL 1, 2021

A 2017 study by Akamai says as much when it found that even a 100ms delay in page load can decrease conversions by 7% and lose 1% of their sales for every 100ms it takes for their site to load which, at the time of the study, was equivalent to $1.6 In DevTools, the Network inspector helps us see what the first webpage is doing too.

Cache 92

Cache Social Media Media Network 92

Dotcom-Montior

JUNE 25, 2020

A Content Delivery Network (CDN) is a network of servers that is placed in different locations across the globe. This solution provides regular certificate expiry reminders by following the certificate monitoring process. Between June 2017 and 2018, the total number of SSL certificates increased by a record 13.2

Monitoring 77

Monitoring Website Internet Internet 77

Tasktop

JANUARY 27, 2021

Value Stream Networks. As detailed in Mik’s bestselling book Project to Product , in 2017 Mik was invited by René to BMW’s state-of-the-art Leipzig plant in Germany. Understanding how to create and connect a Value Stream Network, we must first understand the ground truth of enterprise IT tool networks.

Code 52

Code Automotive Government Network 52

Adrian Cockcroft

JANUARY 29, 2023

Bill Kaiser of NewRelic published this blog in 2017 which goes some way towards what I’m talking about, but since then I have figured out a new way to interpret the data. For high traffic systems, processing the individual response times for each request may be too much work. The normal fitted peaks are then subtracted out of the data.

Lambda 98

Lambda Latency Cache C++ 98

Testsigma

JANUARY 13, 2021

Studies show that in 2017, the worldwide failure rate of iOS apps was as high as 54%, with Android apps crashing 10% of the time. What business processes help with testing mobile apps ? Not only will this help speed track the testing process, it will also help make the objectives clearer.

Mobile 54

Mobile Strategy Testing Efficiency 54

SQL Server According to Bob

FEBRUARY 10, 2019

SQL Server 2017 CU10 does not show behavior. · SQL Server 2017 CU12 exhibits the behavior. Network Trace. Looking at network traces helps build our understanding of the problem. Network Layer Overloaded. . · Failures occur from remote clients or sqlcmd executed directory on the server (/opt/mssql-tools/bin).

Servers 40

Servers Network Database Systems 40