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Engineering News

MobileLab: Prevent mobile performance regressions

Early in our mobile optimization efforts, each fix meant big leaps in performance improvement. Today, our apps are optimized so much that our time is best spent preventing tiny regressions that, if shipped, could cause our progress to backslide. At Facebook’s scale, that means checking thousands of commits per day to find regressions as tiny as 1 percent. Previous methods worked well for spotting large performance changes, but to refine the accuracy, we had to build a new system, called…

NEW BOOK ~ RAMBLINGS OF A CHEMICAL ENGINEER

Freshly released from the oven. My VERY FIRST BOOK. NOW OPEN FOR SALE! ONLY HERE IN FB… This is not offered in other platform yet. Special price for October 2018 🙂 BismillahirRahmanirRahim… Ramblings of A Chemical Engineer – the blue book There is a lot to share, but it’s impossible to include everything in the book. I’m glad to have experienced chemical engineering in three different areas; research; oil and gas; and oil and fats. Each area has its own challenges,…

Modularization of the Wayfair App – Wayfair Tech Blog

Here at Wayfair, we are faced with challenges that the average iOS developer likely never has to come across. In the last eight months, we’ve had 47 different developers make 2,000 commits into our repository. Over the past six years, this monumental amount of changes has led to a codebase consisting of thousands of files and nearly 430,000 lines of code. Each day that goes by, we have around 10-15 merge requests go into our master branch, and 50 more…

Mizzou’s TigerHacks event tests tech wizards’ mettle

The 36-hour-long hackathon tested students from all across Missouri to see if they could develop a functioning product in less than two days. Photo by Audrey Roloff. From Oct. 12-14, Lafferre Hall was taken over by teams of students camping out for the College of Engineering’s annual TigerHacks competition. The 36-hour-long hackathon tested students from all across Missouri to see if they could develop a functioning product in less than two days. All of Lafferre Hall was filled with an…

Coding Conversations: First Time Presenting at a Technical Conference

Last month was the Grace Hopper Celebration of Women in Computing in Houston, Texas, and it’s known as the world’s largest gathering of women technologists. I was lucky enough to attend this year’s event on behalf of LinkedIn. On the second day of the conference, I was scheduled to give a talk about LinkedIn’s load testing and disaster recovery strategies in front of over 600 attendees. As a Site Reliability Engineer (SRE) at LinkedIn’s New York City office, I work as…

Encrypt that SNI: Firefox edition

A couple of weeks ago we announced support for the encrypted Server Name Indication (SNI) TLS extension (ESNI for short). As promised, our friends at Mozilla landed support for ESNI in Firefox Nightly, so you can now browse Cloudflare websites without leaking the plaintext SNI TLS extension to on-path observers (ISPs, coffee-shop owners, firewalls, …). Today we’ll show you how to enable it and how to get full marks on our Browsing Experience Security Check. Here comes the night The…

Open Source at Uber: A Conversation with Yuri Shkuro, Jaeger Project Lead

By Molly Vorwerck Behind your ability to ‘tap a button and get a ride’ on the Uber platform, a complex ecosystem of microservices works together to deliver a seamless user experience. With over 3,000 microservices running at any given time, visibility into Uber’s distributed architecture is critical to ensuring that these services run as smoothly as possible. When Yuri Shkuro joined Uber Engineering’s New York City office in 2015 as an engineer on the Observability team, this mission couldn’t have…

Portable “tricorder” scans life signs

Credit: Engineering and Physical Sciences Research Council Scientists from the School of Engineering at the University of Glasgow have developed a handheld device for taking medical readings from patients, and transferring the data to a smartphone. The device, which combines a handheld sensor and an app running on an Android smartphone or tablet, was partly inspired by the “tricorder” portable scanning/data-capture machine, used by crewmembers of starships in the fictional “Star Trek” universe. The sensor works by using a…

Staying a step ahead of the game — ScienceDaily

Unicellular parasites belonging to the genus Trypanosoma cause sleeping sickness in humans. Sleeping sickness is a debilitating and potentially lethal disease in Sub-Saharan Africa, which is transmitted by the tsetse fly. Professor Nicolai Siegel, who heads a research group in molecular parasitology at LMU, uses trypanosomes as an experimental model system to study the incessant ‘arms race’ between parasites and their hosts: As the host immune system evolves ways of fighting parasitic infections, parasites continually develop strategies to outwit these…

Heart pump from a 3-D printer

Cross section of the prototype. The dark grey magnetic components are clearly visible. Credit: Kai von Petersdorff-Campen / ETH Zurich ETH doctoral student Kai von Petersdorff-Campen has developed a method to create products containing magnets using 3-D printing. He used an artificial heart pump to demonstrate the operating principle – and won an international prototype competition. When Kai von Petersdorff-Campen decided to make an artificial heart pump using 3-D printing, he did not suspect that his project would attract so…