• Boring vs Exciting Technology, Optical Modules and Other Must Reads

    February 11, 2016

    Our publisher platform gives professionals a way to share their personal opinions about topical professional news and interests. Here’s a roundup of some of the best pieces LinkedIn’s engineers have written recently. $1/1G for 100G Optics - A Story of Change By Yuval Bachar, Principal Engineer, Global Infrastructure Architecture and Strategy at LinkedIn To create game-changing innovation, you need to question the status quo. Yuval describes how he took an operational problem and...

  • JVM OS Interaction

    Eliminating Large JVM GC Pauses Caused by Background IO Traffic

    February 10, 2016

    Coauthor: Cuong Tran, Systems Architect In our production environments, we have repeatedly seen that applications running in JVM  (Java Virtual Machine) occasionally experience large STW (Stop-The-World) application pauses due to JVM’s GC logging being blocked by background IO traffic (e.g., OS page cache writeback).  During such STW pauses, JVM pause all application threads, and applications stop responding to user requests hence incurring unacceptable delays to...

  • My Experience Speaking At The Swift Summit

    February 5, 2016

    Almost a year ago now, I gave my first talk. It was last February at a Papers We Love meetup group in San Francisco. By November, I was speaking at the Swift Summit. It was two days long with 250 attendees and 24 great speakers from all over the world. It was an extremely rewarding experience. If you're thinking about taking the plunge into public speaking, it's not as terrifying as you may think. Getting into speaking Last year, I taught myself how to develop for the iOS...

  • Getting to Know Karthikeyan Margam

    Getting to Know Karthikeyan Margam

    February 4, 2016

    Talent is LinkedIn’s number one operating priority and we have no shortage of talented individuals in technical roles across the company. These are the...

  • Android UI tests running in parallel on multiple emulators

    3x3: Speeding Up Mobile Releases

    February 3, 2016

    LinkedIn recently released Project Voyager, our codename for the new version of our flagship application for Android, iOS, and mobile web. Voyager is the...

  • Project Falco

    Project Falco: Decoupling Switching Hardware and Software

    February 1, 2016

    Three years ago we had a serious latency problem with applications inside our data centers. We were not scaling our network infrastructure to meet the...