Items tagged performance in 2021
Filters: Year: 2021 × performance × Sorted by date
Weeknotes: datasette-tiddlywiki, filters_from_request
I made some good progress on the big refactor this week, including extracting some core logic out into a new Datasette plugin hook. I also got distracted by TiddlyWiki and released a new Datasette plugin that lets you run TiddlyWiki inside Datasette.
[... 1197 words]Apply conversion functions to data in SQLite columns with the sqlite-utils CLI tool
Earlier this week I released sqlite-utils 3.14 with a powerful new command-line tool: sqlite-utils convert, which applies a conversion function to data stored in a SQLite column.
When I was a performance consultant I’d show up to random companies who wanted me to fix their computer performance issues. If they trusted me with a login to their production servers, I could help them a lot quicker. To get that trust I knew which tools looked but didn’t touch: Which were observability tools and which were experimental tools. “I’ll start with observability tools only” is something I’d say at the start of every engagement.
— Brendan Gregg # 8th June 2021, 7:33 pm
Cleaning Up Your Postgres Database (via) Craig Kerstiens provides some invaluable tips on running an initial check of the health of a PostgreSQL database, by using queries against the pg_statio_user_indexes table to find the memory cache hit ratio and the pg_stat_user_tables table to see what percentage of queries to your tables are using an index. # 3rd February 2021, 7:32 am
Making GitHub’s new homepage fast and performant. A couple of really clever tricks in this article by Tobias Ahlin. The first is using IntersectionObserver in conjunction with the video preload=“none” attribute to lazily load a video when it scrolls into view. The second is an ingenious trick to create an efficiently encoded transparent JPEG image: embed the image in a SVG file twice, once as the image and once as a transparency mask. # 29th January 2021, 7:05 pm