Author: Ollie

Speeding up WordPress database operations

Rick James and I are cooking up a plugin to help optimize the way WordPress uses its MySQL database. The basic idea It’s an ordinary WordPress plugin, downloadable from the plugin repository. Upon activation, it examines … the WordPress version and maybe the php version, the MySQL / MariaDB version, the character set used in the database (possibly utf8, utf8mb4,… Read more →

Scaled-up web software is hard!

The New York Times ran an article last Friday about the struggles people have had using all those vaccination-appointment web sites. The biggest complaint? The sites “crash” because they have too much traffic. I’ve worked at a company that runs scaled-up web technology. We have a customer with a vast seasonal rush, with millions of users active at any time… Read more →

Firefox has limited ability to handle H.264

The Firefox browser’s WebRTC and MediaRecorder functionality can handle H.264 (Advanced Video Codec) coding and decoding, but only with H.264’s constrained baseline profile. Other, higher, profiles just don’t work. And in Firefox’s WebRTC implementation (v87) attempts to use higher profiles fail more-or-less silently. Firefox works around all the patent issues with H.264 by using an automatically downloaded plugin called “OpenH264… Read more →

Web Beacon API

There’s a sweet little function in web browsers called the Web Beacon API.  It’s a simplified version of the XHR or Fetch API that does a fire-and-forget POST operation to a server. It’s nice for a few reasons.  First, browser Javascript (front-end Javascript) can use it without any need to process results coming back. Just call navigator.sendBeacon().  If your page… Read more →

Find peak cases

This entry is part 4 of 4 in the series Exploring data with SQL

Back in the Database Programming section of this series, we created the view named us_counties_new, showing the daily new case load. Recall that we first computed the seven-day running average of the total case loads in the us_counties_avg7 view, then used those numbers for the daily case loads. Having the daily case loads available lets us do some interesting analysis.… Read more →