Adrian Cockcroft

JANUARY 29, 2023

I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). The code is written using the R statistics language and I downloaded a free copy of RStudio to run the examples below. > For high traffic systems, processing the individual response times for each request may be too much work.

Lambda 98

Lambda Latency Cache C++ 98

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools. I like using Fiddler , and when I inspect the network requests I see that there are indeed some old URLs and redirects floating around.

Cache 92

Cache Social Media Media Network 92

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). It uses a Solaris Porting Layer (SPL) to provide a Solaris-kernel interface on Linux, so that unmodified ZFS code can execute. There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. ” A good question!

Performance 68

Performance Benchmarking Network Mobile 68

Brendan Gregg

OCTOBER 7, 2018

Some one-liners: # New processes with arguments bpftrace -e 'tracepoint:syscalls:sys_enter_execve { join(args->argv); }'. Files opened by process bpftrace -e 'tracepoint:syscalls:sys_enter_open { printf("%s %sn", comm, str(args->filename)); }'. Pages paged in by process bpftrace -e 'software:major-faults:1 { @[comm] = count(); }'.

C++ 40

C++ Virtualization Programming Latency 40

Alex Russell

MARCH 31, 2022

De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. Browsers are unable to rely on semantic versioning or trust file names because returned resources must contain the exact code that developers request. It turns out this idea has been circulating for a while. Thar be more dragons.

Cache 82

Cache Government Traffic Network 82

Testsigma

FEBRUARY 12, 2021

The implementation of emerging technologies has helped improve the process of software development, testing, design and deployment. With all of these processes in place, cost optimization is also a high concern for organizations worldwide. billion in 2016. Many changes are rendered through automated testing. Hyperautomation.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Smashing Magazine

JANUARY 15, 2019

This includes the work done by the server, the client and the intermediary communications networks that transmit data between the two. All of the major browsers provide developer tools that allow us to measure network activity. In 2016, O’Reilly published “ Designing For Sustainability ” by Tim Frick. Large preview ).

Website Performance 73

Website Performance Website Energy Performance 73

CSS - Tricks

JANUARY 31, 2020

From 2016 (PDF warning) to 2019 , the average mobile download speed in the U.S. Despite every significant improvement to the underpinnings of the web and the networks we access it through, we continue to build for it in ways that suggest we’re content with the never-ending Jevons paradox in which we toil. Code splitting works.

Innovation 50

Innovation Mobile Best Practices Speed 50

Alex Russell

MAY 9, 2022

Effective managers understand that products require processes to manage, yet front-end discourse assumes that switching frameworks will introduce a golden age. Reduced network and device capacity correlate with other access challenges. Who owns this code? Only teams that master their systems can make intentional trade-offs.

Performance 86

Performance Latency Metrics Engineering 86

Rigor

SEPTEMBER 11, 2019

Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. ” Paul Calvano. Paul Calvano.

Performance 89

Performance Education Google Website 89

SQL Performance

SEPTEMBER 2, 2021

SQL Server 2016 brought us STRING_SPLIT , a native function that eliminates the need for many of the custom solutions we’ve needed before. STRING_SPLIT() in SQL Server 2016 : Follow-Up #1. STRING_SPLIT() in SQL Server 2016 : Follow-Up #2. SQL Server Split String Replacement Code with STRING_SPLIT.

C++ 59

C++ Servers Testing Database 59

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. At the time of the last Confluence run, the gap had stretched to nearly 1000 APIs, doubling since 2016. Helps media apps on the web save battery when doing video processing.

Media 145

Media Games Education Engineering 145

SQL Server According to Bob

FEBRUARY 10, 2019

Network Trace. Looking at network traces helps build our understanding of the problem. Network Layer Overloaded. In contrast to the failing SQL Server login, this is what a network trace looks like when the network layer becomes overloaded and is not completing requests to the SQL Server. SQL Authentication Impact.

Servers 40

Servers Network Database Systems 40

Smashing Magazine

JUNE 26, 2019

Clean coding practices. In this case, my website is “slow”, even when served on 4G networks. They might not be as exciting to design with, but they won’t force users to sit around and wait for your website to load, costing you visitors and customers in the process. Minification. Image optimization. So, is there anything left?

Website 110

Website Speed Mobile Design 110

Tim Kadlec

JANUARY 31, 2019

They prevent abuse by ad networks and many people are realizing the benefits of that with increased performance and better battery life. Never-Slow Mode isn’t that far removed from two ideas that we had back in 2016 when Yoav Weiss and I met with the AMP team to discuss some standards-based alternatives to AMP. Probably not.

Tuning 76

Tuning Cache Development Performance 76

The Symphonia

DECEMBER 6, 2017

Specific improvements include A new code editor for those who write their Lambda functions in Javascript and Python, far superior to the old inline code-editor. We don’t recommend using this as a regular process for production use, but it might come in handy at development time. Also allows for creating new files in line.

Serverless 40

Serverless Lambda AWS Traffic 40

Rigor

SEPTEMBER 3, 2019

This information can then be used to set up tests within a synthetic monitoring data platform such as Rigor to test how a user experience those flows on every type of device, network, connection, and location. Response code or issues with the rendered page [Synthetic]. Traffic patterns outside of normal [RUM or Analytics].

Website 74

Website Cache Ecommerce Traffic 74

All Things Distributed

DECEMBER 13, 2016

In just this past month we've had HSBC , ARM , Missguided , and most recently at re:Invent 2016 , Trainline , talking with us about how they are using AWS to transform and scale their businesses. Take GoSquared , a UK startup that runs all its development and production processes on AWS, as an example.

AWS 166

AWS Cloud Artificial Intelligence IoT 166

Smashing Magazine

OCTOBER 26, 2018

Because of its history and for being sort of a fork of an old blogging platform called “b2” (more details here ), it’s largely written in a procedural way (using function-based code). Recommended reading : WordPress Security As A Process. Before we delve deeper in the code, a couple more things about WordPress REST API.

Cache 78

Cache Website Speed Database 78

Smashing Magazine

JULY 12, 2021

However, this simplicity leaves the door open for many potential issues and technical debt — bloated code, specificity hell, duplicated code blocks with very little to no difference, leftover unused selectors, unnecessary hacks, and workarounds, to name a few. Leftover, unused chunks of code from deleted features.

Best Practices 145

Best Practices Website Architecture Media 145

Smashing Magazine

JULY 6, 2021

Moving to a headless CMS is not an easy decision and the selection process should not be taken lightly. With Luminary’s 21 years of experience in the digital space, my experience of 17 years in the CMS space as well as our focus on Headless since 2016, here are my two cents on what you should look out for. Microservices architecture.

Cache 143

Cache Website Mobile Google 143