Alex Russell

MARCH 31, 2022

De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. Late in the drafting of this post, it was pointed out to me by Frederik Braun that Brad Hill had considered the downsides of a site-populated SRI addressable cache back in 2016. It turns out this idea has been circulating for a while.

Cache 89

Cache Government Traffic Network 89

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). For high traffic systems, processing the individual response times for each request may be too much work.

Lambda 98

Lambda Latency Cache C++ 98

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. JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. The median user is on a slow network.

Performance 74

Performance Network Benchmarking Mobile 74

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). I wrote about it in a previous post, [DTrace for Linux 2016]. I wrote a page on it: [perf]. - **eBPF**: tracing features completed in 2016, this provides efficient programmatic tracing to existing kernel frameworks. The hardest part on Linux is now done: kernel support. It's the official profiler.

Virtualization 75

Virtualization AWS Engineering Hardware 75

Rigor

JULY 2, 2019

Time spent on redirect is most noticeable on mobile devices, especially since they tend to use slower networks. This is similar to the type of redirect used if you’ve registered multiple domains and you want to direct all of your traffic to your primary URL. Originally published September 2016, updated July 2019.

Mobile 60

Mobile Traffic Google Latency 60

Rigor

SEPTEMBER 3, 2019

It’s about ensuring that your front-end is also working perfectly, that your site can deliver a delightful experience to your users or customers, and that it is functional – even when it’s experiencing up to seven or more times the typical traffic load. Traffic patterns outside of normal [RUM or Analytics].

Website 74

Website Cache Traffic Ecommerce 74

Speed Curve

DECEMBER 19, 2018

Because the HTML parser stopped, all network traffic also stopped (because no other HTML tags were parsed to initiate HTTP requests). The number of sync dropped and async rose in June 2016. Here's what loading 14 scripts looked like in Internet Explorer 7: I've added a red arrow at the beginning of each script request.

Internet 53

Internet Internet Website Traffic 53

Alex Russell

MAY 9, 2022

Reduced network and device capacity correlate with other access challenges. Folks with powerful laptops, new iPhones, and low-latency networks are noticing, which is a very bad sign. Do they have a device-class or network condition target ? miAi3020A9G #perfmatters 1 10:04 AM · Jul 7, 2016. sales, marketing, etc.)?

Performance 99

Performance Latency Metrics Engineering 99

The Symphonia

DECEMBER 6, 2017

Traffic shaping / canary deployment was pre-announced at Serverless Conf NYC in October, and this is now available. Like Lambda, API Gateway now supports canary deployment / traffic shaping. A much bigger update is the new integration with CodeDeploy to support Traffic Shaping and Canary Releases. without web app servers?—?to

Serverless 40

Serverless Lambda AWS Traffic 40

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. Windows TCP Settings.

Servers 40

Servers Network Database Systems 40

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 127

Performance Network Mobile Metrics 127

Testsigma

DECEMBER 8, 2019

It has been since 2016 that a major IT firm WIPRO has been pushing for the application of hyper-automation to all their processes in their own firm. 75% of all website traffic runs through Google. According to Gartner , Hyper automation is a technology trend to look out for in 2020. IoT or Internet of Things is an example of that.

IoT 78

IoT Software Software Testing 78