Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. Not as much as we'd like, of course, but the worldwide baseline has changed enormously. Hardware Past As Performance Prologue. There are differences, of course, but not where it counts.

Performance 124

Performance Network Cache Metrics 124

All Things Distributed

SEPTEMBER 6, 2013

Given that I am originally from the Netherlands I have, of course, a special interest in how Dutch companies are using our cloud services. . Europe is a continent with much diversity and for each country there are great AWS customer examples to tell.

Cloud 129

Cloud Energy AWS Healthcare 129

All Things Distributed

APRIL 5, 2012

Large Seasonal Peaks – Our largest community supports TurboTax where the peak traffic during February or April is often 100s of times greater than a quiet day in June. Of course, with as much textual data as we have we are leveraging Lucene/SOLR (a NoSQL solution) for Search and Semantic processing.

Innovation 146

Innovation AWS Education Network 146

Alex Russell

JULY 14, 2021

Meanwhile, on Android, the #2 and #3 sources of web traffic do not respect browser choice. On Android today and early iOS versions, WebViews allow embedders to observe and modify all network traffic (regardless of encryption). Hardware access APIs, notably: Geolocation. Basic navigation and window management features to (e.g.

Google 121

Google Mobile Engineering Internet 121

Alex Russell

OCTOBER 22, 2017

Contended, over-subscribed cells can make “fast” networks brutally slow, transport variance can make TCP much less efficient , and the bursty nature of web traffic works against us. Time required to read bytes from disk (it’s not zero, even on flash-based storage!). I suggest we should be conservative.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 11, 2021

CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. But account for the different types and usage behaviors of your customers (which Tobias Baldauf called cadence and cohorts ), along with bot traffic and seasonality effects. You can create your own on Chrome UX Dashboard.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

This might be very different for your company, of course, but that’s a close enough approximation of a majority of customers out there. For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Lighthouse , a performance auditing tool integrated into DevTools.

Performance 145

Performance Cache Network Metrics 145

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). Appliance manufacturers hire kernel engineers to develop custom features, including storage appliances.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 7, 2019

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. On the other hand, we have hardware constraints on memory and CPU due to JavaScript parsing times (we’ll talk about them in detail later). Lighthouse , a performance auditing tool integrated into DevTools.

Performance 103

Performance Cache Metrics Network 103