Speed Curve

SEPTEMBER 21, 2016

Often when monitoring and debugging site performance we focus on network activity and individual resources, but what about the CPU? As more and more sites switch to using large Javascript frameworks and manipulating the page using Javascript, the execution time this code takes and the available CPU can instead become the performance bottleneck. CPU usage for all Chrome tests.

Monitoring 86

Monitoring Testing Mobile Availability 86

Testlodge

SEPTEMBER 22, 2016

We’ve all been there… you just released a small change into production and KaBOOM! Customers are writing in unavailable to connect to your app, errors are surfacing, and your team is scrambling to figure out what went wrong and working to roll back changes. Needless to say, things just aren’t going as expected. In this post, we’re going to continue our series on types of software testing and take a look at regression testing.

Testing 51

Testing Software Software Strategy 51

Tim Kadlec

SEPTEMBER 21, 2016

I remember sitting around with a few friends at Chrome Dev Summit last year. The conversation eventually turned to security. We all agreed about how massively important it was, but we also each acknowledged that it’s not trivial to do correctly. It’s not the most accessible topic and the tooling and standards can be a bit unwieldy. Since that time, Let’s Encrypt came out of beta and did a lot to really simplify the process of moving sites to HTTPS.

Open Source 49

Open Source Code Performance Processing 49

Dean Hume

SEPTEMBER 21, 2016

When I first started learning about web page performance, I always use to focus solely on the time that it took a page to load. The excitement of seeing a web page load in an instant kept me coming back for more. Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses.

Speed 40

Speed Analytics Google Retail 40

The Polyglot Developer

SEPTEMBER 19, 2016

Recently I’ve been using a good amount of Docker for various deployment pipelines. As everyone knows, I’m a huge Raspberry Pi fan, so I figured it would be a cool idea to bring the two together. After all, Docker was built using Golang which is cross architecture. We’re going to see how to create Docker containers on a Raspberry Pi and figure out the limitations of using Docker on IoT based architectures.

IoT 40

IoT Architecture Development 40

Speed Curve

SEPTEMBER 19, 2016

If you're a performance engineer, then you're familiar with waterfall charts. They are found in browser dev tools as well as other performance services. I use multiple waterfall tools every day, but the waterfall chart I love the most is the one we've built at SpeedCurve: We've added a number of great features to our waterfall chart. In the screenshot above we see the vertical lines we've added to show Backend, Start Render, and Onload.

Network 40

Network Engineering Performance 40

Dean Hume

SEPTEMBER 21, 2016

When I first started learning about web page performance, I always use to focus solely on the time that it took a page to load. The excitement of seeing a web page load in an instant kept me coming back for more. Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses.

Speed 40

Speed Analytics Google Retail 40