The Netflix TechBlog

OCTOBER 19, 2020

If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls. Using simple lookup indices in Cassandra gives us the ability to maintain acceptable read latencies while doing heavy writes.

Infrastructure 238

Infrastructure Transportation Storage Open Source 238

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Blocking write traffic by locking tables. Writing events to any output.

Database 221

Database Traffic Transportation Open Source 221

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Blocking write traffic by locking tables. Writing events to any output.

Database 206

Database Traffic Transportation Open Source 206

O'Reilly

NOVEMBER 12, 2019

Rather than buying racks and racks of servers that need to handle the maximum potential traffic and be idle most of the time, it seems that serverless’ method of paying by compute is proving to be beneficial to the bottom lines of organizations. latency, startup, mocking, etc.) 1] The serverless adoption survey ran in June 2019.

Serverless 94

Serverless Architecture FinTech Infrastructure 94

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. Throughput and latency. km university campus.

Energy 130

Energy Latency Performance Network 130

All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. For VR, this is a journey that is already one-third complete and expected to be finished by the end of 2019. Telenor Connexion.

AWS 119

AWS Cloud Games Serverless 119

The Morning Paper

JUNE 30, 2019

Today we’re jumping from HotOS topics of 2019, to hot topics of 1977! In such a situation I’d expect to see unusually high latencies, but normal throughput). The high-traffic, lock-protected resources in System R are the buffer pool, recovery log, and system entry/exit. Never page fault while a high traffic lock is held.

Traffic 75

Traffic Latency Programming Scalability 75

The Morning Paper

JULY 4, 2019

Two failure modes we focus on are a service becoming slower (increase in response latency) or a service failing outright (returning errors). The criticality score is combined with a safety score and experiment weight (failure experiments, then latency, than failure inducing latency) to produce the final prioritization score.

Latency 77

Latency Engineering Metrics Traffic 77

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side.

Speed 103

Speed Java AWS Virtualization 103

CSS - Tricks

NOVEMBER 1, 2019

The FCP distribution for the 10th, 50th and 90th percentile values as reported on August 1, 2019. TTI distribution for the 10th, 50th and 90th percentile values as reported on August 1, 2019. TTFB mobile speed distribution (CrUX, July 2019). FCP mobile speed distribution (CrUX, July 2019). First Contentful Paint.

Speed 48

Speed Mobile Metrics Scalability 48

Rigor

JULY 2, 2019

This is similar to the type of redirect used if you’ve registered multiple domains and you want to direct all of your traffic to your primary URL. In all of these instances, you should identify which URL garners the most traffic and then configure an HTTP 301 -type redirect for all of the lesser-used URLs to the most-trafficked.

Mobile 60

Mobile Traffic Google Latency 60

O'Reilly

DECEMBER 2, 2019

5G enthusiasts frequently say it’s an enabling technology for autonomous vehicles (AV), which will need high bandwidth to download maps and images, and perhaps even to communicate with each other: AV heaven is a world in which all vehicles are autonomous and can therefore collaboratively plan traffic. Upcoming events.

Wireless 55

Wireless Serverless IoT Artificial Intelligence 55

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side.

Speed 40

Speed Java AWS Virtualization 40

Alex Russell

MARCH 6, 2021

India has been the epicentre of smartphone growth in recent years, owing to the sheer size of its market and an accelerating shift away from feature phones which made up the majority of Indian mobile devices until as late as 2019. So what did $150USD fetch in 2019? The smooth, dulcet tones of 2019's Moto E6. " package.

Performance 127

Performance Network Mobile Metrics 127

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet.

Performance 111

Performance Cache Network Metrics 111

Smashing Magazine

JANUARY 11, 2021

CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. But account for the different types and usage behaviors of your customers (which Tobias Baldauf called cadence and cohorts ), along with bot traffic and seasonality effects. You can create your own on Chrome UX Dashboard.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Geekbench CPU performance benchmarks for the highest selling smartphones globally in 2019.

Performance 112

Performance Cache Servers Network 112