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

The pattern itself is no longer recommended, but it’s a helpful illustration of why it’s important to be careful about how you use preload as well as a useful, real-world demonstration of how the order of your document can have a significant impact on performance (something Harry Roberts has done an outstanding job of detailing ).

Network 145

Network C++ Performance Processing 145

Brendan Gregg

JULY 15, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. Some other future BPF books may be good, and I'll recommend them as appropriate. I've followed this proven approach in my book.

Systems 111

Systems Performance Education Technology 111

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. Our engineering teams tuned their services for performance after factoring in increased resource utilization due to tracing.

Infrastructure 238

Infrastructure Transportation Storage Open Source 238

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 51

Systems Performance C++ Operating System 51

Rigor

SEPTEMBER 11, 2019

Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. Rick Byers.

Performance 89

Performance Education Google Website 89

All Things Distributed

MAY 19, 2017

In many, high-throughput, OLTP style applications the database plays a crucial role to achieve scale, reliability, high-performance and cost efficiency. We believe the central constraint in high throughput data processing has moved from compute and storage to the network.

Database 109

Database Design Cloud Storage 109

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 65

Network Mobile Google Cache 65

ACM Sigarch

APRIL 26, 2018

They unveiled their first two embedded AI chips fabricated with TSMC 40nm process in December 2017: “Journey 1.0 TFLOPS deep learning performance, and is equipped with 32GB of high-bandwidth memory (HBM) capacity. Their prototype introduces processing-in-memory and performs hybrid digital/analog calculation inside flash arrays.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Tim Kadlec

JANUARY 4, 2018

It’s not much of a surprise, then, that I read more books in 2017 than I have since I started keeping track back in 2009. His point, very Neil Postman-esque, is particularly true in today’s world of entertainment-driven news and fast-moving social networks that I’m increasingly convinced that, by default, only amplify existing biases.

BioTech 45

BioTech Social Media Entertainment Media 45

Dynatrace

MAY 6, 2021

Improved performance of Licensing and Environments overview page for clusters running dozens of environments. 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. See Update Dynatrace Managed topic.

Operating System 227

Operating System AWS Metrics Storage 227

All Things Distributed

NOVEMBER 13, 2018

Since then, AWS has added another PoP in Palermo in 2017. Lamborghini, the world-famous manufacturer of elite, luxury sports cars based in Italy, has been using AWS to reduce the cost of their infrastructure by 50 percent, while also achieving better performance and scalability. Today, their time-to-market is close to zero.

AWS 167

AWS Energy Automotive Traffic 167

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As for Romania, it covers an area of over 238,000 square kilometers and as of 2017 had a population of almost 20 million. million people. USD each online annually.

Internet 48

Internet Internet Ecommerce Speed 48

Dotcom-Montior

JUNE 25, 2020

A Content Delivery Network (CDN) is a network of servers that is placed in different locations across the globe. CDNs essentially act as the backbone for high speed internet content delivery and performance. Between June 2017 and 2018, the total number of SSL certificates increased by a record 13.2 million certificates.

Monitoring 77

Monitoring Website Internet Internet 77

Brendan Gregg

JULY 14, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. Some other future BPF books may be good, and I'll recommend them as appropriate. I've followed this proven approach in my book.

Systems 40

Systems Performance Education Technology 40

Percona

APRIL 12, 2023

2017: MongoDB goes public, trading as MDB. This part of the actual SSPL language speaks volumes: If you make the functionality of the Program or a modified version available to third parties as a service, you must make the Service Source Code available via network download to everyone at no charge, under the terms of this License.

Open Source 83

Open Source Programming Database Servers 83

Brendan Gregg

NOVEMBER 29, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance.

Virtualization 111

Virtualization AWS Hardware Storage 111

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

MachMetrics

FEBRUARY 7, 2019

.” Look put these stats on some numbers: Effect on Sale: 79% of customers who report dissatisfaction with website performance are less likely to buy from that same site again. Factors such as the person’s current network connection and the general speed of the corresponding webpage will be considered. Growing use of mobile.

Speed 93

Speed Website Performance Website Mobile 93

Testsigma

JANUARY 29, 2021

That’s not all, the global mobile traffic is expected to increase sevenfold between 2017 and 2022. Globally, consumers are preferring their mobile phones for performing activities (e.g. Mobile website testing helps in serving your customers with a flawless performance on popular screen resolutions. Mobile Device Compatibility.

Website 98

Website Mobile Testing Strategy 98

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. According to Wikipedia , the average connection speed in Q1 of 2017 was 20.5Mbps. Our newest point of presence has been launched in Helsinki, Finland! What’s Next?

Internet 48

Internet Internet Speed Network 48

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. Here are a few routine testing methodologies used by QA specialists to ensure optimum performance. Performance testing to ascertain the efficiency of the application 6.

Mobile 54

Mobile Strategy Testing Efficiency 54

SQL Performance

SEPTEMBER 17, 2019

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Disk latency for ReportServer and ReportServerTempDB are very important. Conclusion.

Tuning 67

Tuning Servers Database Best Practices 67

The Morning Paper

JUNE 6, 2019

The bulk of the paper is about the practicalities of running these algorithms at scale across a large fleet of devices: managing device availability, coordinating activity over unreliable networks and devices, building and deploying training workflows, and troubleshooting when things go wrong. Federated Averaging. ” Secure Aggregation.

Systems 71

Systems Design Google Servers 71

Rigor

MARCH 20, 2018

I recently was asked the following question by an online retailer: “Why should I invest in monitoring the user experience when I already have monitoring for our database, infrastructure, app server, and network?”. Instead of asking that question, I asked them this: “Are you a network or hosting provider?

Monitoring 40

Monitoring Retail Ecommerce Infrastructure 40

Alex Russell

DECEMBER 18, 2022

TL;DR : To serve users at the 75 th percentile ( P75 ) of devices and networks, we can now afford ~150KiB of HTML/CSS/fonts and ~300-350KiB of JavaScript (gzipped). This is a slight improvement on last year's budgets , thanks to device and network improvements. Networks #. This is an ethical crisis for the frontend.

Performance 119

Performance Mobile Network Latency 119

Alex Russell

JANUARY 30, 2024

It's time once again to update our priors regarding the global device and network situation. The usual caveats also apply: Performance is a deep and nuanced domain, and much can go wrong beyond content size and composition. How sites manage resources after-load can have a big impact on perceived performance.

Performance 95

Performance Network Mobile Speed 95

SQL Server According to Bob

FEBRUARY 22, 2018

Prior to SQL Server 2017 CU4 for Linux (Linux only) the generation of a sequential UUID may not function as expected. The inserts may occur at the beginning of the index, causing splits and in rare cases you may notice the performance impact. secrets/instance_id file. For SQLPAL the value is stored in /var/opt/mssql/.secrets/instance_id

Servers 40

Servers Software Engineering Database Network 40

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance.

Virtualization 40

Virtualization AWS Hardware Storage 40

Scalegrid

AUGUST 27, 2024

Key features of RabbitMQ, such as message acknowledgments, complex routing, and asynchronous processing, contribute to system reliability and performance. This decoupling allows for smoother and more efficient communication between different components of an application, boosting overall system performance and reliability.

IoT 130

IoT Ecommerce Games Scalability 130

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. Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones.

Performance 127

Performance Network Metrics Cache 127

Brendan Gregg

SEPTEMBER 5, 2017

I gave a talk about container performance recently at DockerCon, and included a quick summary of how they work: YouTube , SlideShare : If you search of slideshare and youtube, you'll find many other good talks on containers as well. At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access.

Virtualization 76

Virtualization AWS Engineering Hardware 76

KeyCDN

NOVEMBER 8, 2018

Varonis) In 2017 there was a 13 percent overall increase in reported system vulnerabilities. This allows you to restrict the access to your account by IP (/32) or network (e.g. /24). This newly updated version of TLS offers users both faster performance and improved security. with 0-RTT support.

Transportation 47

Transportation Website Google Infrastructure 47

The Netflix TechBlog

DECEMBER 23, 2020

Titus is a multi-tenant system, allowing multiple teams and users to run workloads on the system, and ensuring they can all co-exist while still providing guarantees about security and performance. In addition to the default Docker namespaces (mount, network, UTS, IPC, and PID), we employ user namespaces for added layers of isolation.

Media 295

Media Metrics Systems Processing 295

Smashing Magazine

AUGUST 10, 2023

Large preview ) I don’t know about you, but it often feels like I’m missing something when measuring page speed performance. Not the best way to get a high-level view of performance. I’ve had time to work with DebugBear and thought I’d give you a peek at it with some notes on my experience using it to monitor performance.

Speed 82

Speed Monitoring Testing Network 82

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 136

Software Architecture DevOps Data Engineering Architecture 136

Tim Kadlec

JANUARY 9, 2019

One question I’ve seen posed a few times in the past several months is whether performance really is a moral or ethical concern, or if that’s all heavy-handed exaggeration. When you stop to consider all the implications of poor performance, it’s hard not to come to the conclusion that poor performance is an ethical issue.

Performance 111

Performance Energy Internet Internet 111