n0derunner

DECEMBER 17, 2018

How to reduce database restore time by 50%. During.Next 2018 in London, Nutanix announced performance improvements in the core-datapath said to give up to 2X performance improvements. Here’s a real-world example of that improvement in practice. I am using X-Ray to simulate a 1TB data restore into an existing database. Specifically the IO sizes are large, an even split of 64K,128K,256K, 1MB and the pattern is 100% random across the entire 1TB dataset. bssplit=64k/20:128k/20:256k/20:512k/2

Performance 64

Performance Benchmarking Storage Network 64

ACM Sigarch

DECEMBER 17, 2018

“A lot of people have gone further than they thought they could because someone else thought they could” — Zig Ziglar, renowned motivational speaker. Good mentoring can have an outsized impact on the careers of students, especially during early stages of their career. Countless stories that credit the right advice at the right time for launching outstanding career trajectories are commonplace.

Architecture 49

Architecture Network Strategy Systems 49

The Polyglot Developer

DECEMBER 17, 2018

A long time ago when I had been exploring session management in Node.js, I had written a tutorial titled, Session Management in Your Express.js Web Application. This was a basic tutorial that is still very functional today, however little things have changed since then when it comes to how the web works. For example, in 2015 HTTPS was never a requirement and we weren’t exposed to all the frontend web frameworks that exist today.

Development 45

Development 45

Speed Curve

DECEMBER 17, 2018

The Internet really is a complicated series of tubes. As a result, any time-based metrics we capture can have variations as those tubes wobble a bit as we shove data down them. To help reduce that variation, when we do synthetic tests, we always load a page at least three times and take the median result. But even then you'll find that, over time, your charts will still show plenty of variation.

Metrics 45

Metrics Internet Internet Traffic 45