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Category: Civil Engineering

How We Did It: The 2020 General Election Rig

Screenshots of the new general election rig In March of 2020, I came to NPR from big tech, where deadlines were more guidelines than rules, and landed in a mid-pandemic world of two-day turnarounds. By September, I’d mostly adjusted to the stress of non-negotiable deadlines. But there was something different about the fear I felt when our developer Thomas Wilburn casually said “most elections teams I know have been working on their platforms for months.” We’d also wanted to start…

Holiday Season Update from Lisbon

It’s the end of the year, so we thought it would be a great time to give you an update on how we’re doing and what we’re planning for 2021. If you’re reading this, you know we like to share everything we do at Cloudflare, including how the organization is evolving. In July, John Graham-Cumming wrote a blog post entitled Cloudflare’s first year in Lisbon. and showed how we went from an announcement, just a few months before, to an…

This Week in PowerBites: Vanquishing Battery Vampires, Tough FETs

>> Electronic Design Resources.. >> Library: Article Series.. .. >> Article Series: PowerBites The pandemic hasn’t given anybody a chance to be naughty this year, so Santa asked us to stuff the holiday edition of PowerBites chock-full of treats for our readers. We hope you enjoy the two tutorials, the heaping helping of product reviews, and a look at how the electronics industry may chart the future for a profitable and sustainable future. With best wishes to you and your…

Rsys: A smaller, faster video calling library

We are rolling out a new video calling library to all the relevant products across our apps and services, including Instagram, Messenger, Portal, Workplace chat, etc.  To create a library generic enough to support all these different use cases, we needed to rewrite our existing library from scratch using the latest version of the open source WebRTC library, an incredibly rare undertaking that involved engineers from across the company. Compared with the previous library, rsys is capable of supporting multiple…

Computing Euclidean distance on 144 dimensions

Late last year I read a blog post about our CSAM image scanning tool. I remember thinking: this is so cool! Image processing is always hard, and deploying a real image identification system at Cloudflare is no small achievement! Some time later, I was chatting with Kornel: “We have all the pieces in the image processing pipeline, but we are struggling with the performance of one component.” Scaling to Cloudflare needs ain’t easy! The problem was in the speed of…

Shorter building construction timelines could be possible with new sensor technology

Purdue University engineers developed sensors that can instantly measure concrete strength, speeding up a construction timeline. Credit: Purdue University photo/Rebecca McElhoe How long it takes to construct a building depends in large part on when the concrete of each floor is strong enough to take on loads. Purdue University engineers have developed sensors that could safely speed up a construction timeline by determining concrete strength directly onsite in real time. Typically, concrete mix designs require testing before implementation in a…

Talking with Analog Devices About 5G Development and Network Connectivity

Reprinted with permission from Evaluation Engineering There has been a lot of attention being paid to the roll-out of 5G-based systems and the underlying infrastructures, and Analog Devices is one of the companies aggressively addressing the core technology and devices required. For example, the company has announced a series of collaborative efforts to support 5G networks with companies including NEC, Intel, and Marvell. In the case of NEC and Analog Devices, the two teamed up to design a 5G Network…

No Code Workflow Orchestrator for Building Batch & Streaming Pipelines at Scale

At Uber, several petabytes of data move across and within various platforms every day. We power this data movement by a strong backbone of data pipelines. Whether it’s ingesting the data from millions of Uber trips or transforming the ingested data for analytical and machine learning models, it all runs through these pipelines. To put it in perspective, Uber’s data platform runs upwards of 15,000 data pipelines! But over time, the existing Python framework-based methods started showing a productivity tax…

Scaling Netflix’s API via GraphQL Federation (#2)

In our previous post and QConPlus talk, we discussed GraphQL Federation as a solution for distributing our GraphQL schema and implementation. In this post, we shift our attention to what is needed to run a federated GraphQL platform successfully — from our journey implementing it to lessons learned. Over the past year, we’ve implemented the core infrastructure pieces necessary for a federated GraphQL architecture as described in our previous post: Studio Edge Architecture The first Domain Graph Service (DGS) on…

Scaling Cache Infrastructure at Pinterest

Kevin Lin | Software Engineer, Storage and Caching Demand on Pinterest’s core infrastructure systems is accelerating faster than ever as more Pinners come to Pinterest to find inspiration. A distributed cache layer fronting many services and databases is one of our core storage systems that sits near the bottom of Pinterest’s infrastructure stack, responsible for absorbing the vast majority of backend traffic driven by this growth. Pinterest’s distributed cache fleet spans an EC2 instance footprint consisting of thousands of machines, caching hundreds…