David Xia

I write code and sometimes prose.

[David Xia @davidxia_]

I work with people in different time zones and also computers in UTC. I wish I turned these Google Calendar settings on sooner. https://t.co/uq4Gp1PP1j

[Charles 🎉 Frye @charles_irl]

working on slides again

[Modal @modal]

https://t.co/5DZKxwdGY5

[David Xia @davidxia_]

The Github breach was due to a single employee using a poisoned VSCode extension. Compromising employees is often the easiest way into systems. If you want to work on cybersecurity at the forefront of the AI infra space, Modal has 3 open security roles! https://t.co/LSQNFSdVBw

[GitHub @github]

1/ We are sharing additional details regarding our investigation into unauthorized access to GitHub's internal repositories.

Yesterday we detected and contained a compromise of an employee device involving a poisoned VS Code extension. We removed the malicious extension version, isolated the endpoint, and began incident response immediately.

[Charles 🎉 Frye @charles_irl]

Added a fun lil widget to the LLM Engineer's Almanac -- a "Token Timing Simulator" so you can get a visceral feel for what a benchmark perf number means.

Here's @_dcw02's latest work with @zhijianliu_'s DFlash technique in @sgl_project -- ~1k TPS!

https://t.co/iUJm984dq0

[David Xia @davidxia_]

@ekzhang1 Take care of yourself and listen to the feels.

[David Xia @davidxia_]

Did GitHub start packing their Actions runners more tightly or give us worse hardware? For some reason the flake rate for integration tests in my team's monorepo that had certain assumptions about timing has increased along with other weird flakiness failure modes.

[David Xia @davidxia_]

AWS outages are awful. https://t.co/ta5KjtskF2
"thermal event"

[David Xia @davidxia_]

@ubuntu .@ubuntu What are the official channels we should be monitoring for latest updates?

[David Xia @davidxia_]

@ubuntu I see the update.

[David Xia @davidxia_]

😞

[David Xia @davidxia_]

@maxedapps I think the reliability issues are actually evidence to the contrary. So many people and agents now are using it that GitHub's dealing with massive scaling issues.

[David Xia @davidxia_]

@theotherelliott detailed info here

https://t.co/VFThrsaWZU

https://t.co/sdJ0tEv0v9

[David Xia @davidxia_]

@theotherelliott I'm looking forward to their post-mortem. They emailed us with a list of affected commits. For very active repos, this is a major headache. 😭

[David Xia @davidxia_]

@theotherelliott Insane growth causes insane incidents?

https://t.co/BX0wX42Wfy

AI is hammering GitHub. Maybe AI can save it too.

https://t.co/fhGPrmOhoP.

[Mario Rodriguez @mariorod1]

The graphs reflect growth from Jan ’23 to March ’26: 25M → 90M merged PRs/month, 389M → 1.4B commits/month, and 6.9M → 20M net new repos/month.

The intent was to highlight the relative scale between these metrics. Appreciate the feedback and we’ll factor it into future renderings/designs.

[David Xia @davidxia_]

@ashleymcnamara I am rooting for GitHub.

[David Xia @davidxia_]

@ashleymcnamara Appreciate this blog post

[David Xia @davidxia_]

https://t.co/cetlTxEKuS

I don't want new features. I just want the old thing to keep working.

[David Xia @davidxia_]

Annd github's degraded. Again. https://t.co/bgT77Y6DKi