About Me

Hi, I am Xing Liu (刘星). Welcome to my cyber home!

I’m an engineer interested in LLM Serving Efficiency. Currently working at Annapurna Labs of AWS, focusing on everything about LLM serving.

Short bio

For introductions:

Xing Liu (刘星) is an engineer at Annapurna Labs, part of Amazon Web Services, working on LLM serving. Before that, Xing worked at Google on Gemini serving and quantization, including the StableHLO quantizer, and at Yahoo (Verizon Media) on machine learning for abuse and reputation.

Résumé

Annapurna Labs, AWS: LLM serving. Now.
Google: Gemini serving and quantization, and the StableHLO quantizer.
Yahoo / Verizon Media: machine learning for abuse and reputation.

A longer résumé, written in September 2025, as a PDF: Xing_Liu_Resume_20250924.pdf (77 KB).

Elsewhere

GitHub: github.com/xingliu14. The bio there reads “A random dude” and “@xingliu-aws is also me”.
LinkedIn: linkedin.com/in/xingliu14
Instagram: instagram.com/fancybaseball
RSS: xingliu.me/feed.xml, every post in full. Paste the address into any feed reader.

Colophon

I wanted this site to feel like a web page from the late 1990s: plain on the surface, complete underneath, and easy to read. So it is set the way Netscape Navigator 3 showed a page in 1997, then typeset with care. One rule decides everything: only what Navigator could draw, set the way a typographer would.

Color. Navigator’s own defaults: a #C0C0C0 gray page, #0000EE links, and #551A8B for links you have visited, so the archive remembers what you have read without a single cookie. Rules, tables and fields are shaded the way Navigator shaded them. Night, the dark scheme, follows your system’s setting and takes its link colors from the 216 browser-safe colors. Prefer white paper? Choose Paper white from the Page colors menu at the foot of any page (long posts have it under the title too). Your browser remembers the choice in its own storage, and nothing is sent anywhere.
Type. Georgia for reading: Matthew Carter drew it for screens, and Microsoft gave it away in 1996 as one of its core fonts for the Web. Headings are Times New Roman, every browser’s default. Small print is Verdana, from the same set. Code is Monaco on a Mac and Lucida Console on Windows. Chinese is set in Song (宋体) with two-character indents; where your computer has one, its quotation marks come from a font that draws them full width. This site downloads no fonts: it uses the ones already on your computer, with close stand-ins where these are missing.
Machinery. Posts are written in Markdown, built by Astro and served by GitHub Pages. Everything works without JavaScript. Scripts only add extras, such as search as you type, copy buttons, the color menu, the mark in the contents box that shows which section you are reading, and the visitor map.
Search. The search box looks through a small index of every post, in your browser, and understands Chinese. Without JavaScript it asks DuckDuckGo to search this site instead.
Dates. “Last modified” at the foot of a post is the last time its words changed, read from the site’s history in git; moving files or changing the design does not count. “NEW!” marks things less than 30 days old, and disappears on its own.
Feeds and addresses. The RSS feed carries every post in full; RSS was invented at Netscape in 1999. Neither the move to Astro nor this redesign changed any post’s address, because cool URIs don’t change.
Previews. Share a page, and its preview picture shows that page as Navigator would have drawn it.
Privacy. This site sets no cookies of its own and runs no analytics. The only outside code is the visitor map on the home page: mapmyvisitors.com’s script, which counts pageviews, loads jQuery to draw the map, and sets a session cookie on mapmyvisitors.com. It runs after everything else on the page.
The star. The little icon in your browser tab is a 16-pixel star, because 星 means star.

The buttons

The four 88×31 buttons at the foot of every page each make a claim, and each claim is true:

Subscribe: RSS feed. The feed has every post, in full.
Built with Astro. Astro builds every page; the posts are written in Markdown.
Hosted on GitHub Pages. GitHub serves every file you are reading.
Viewable with any browser. Every page reads, navigates and searches without JavaScript, CSS or images, as the 1997 campaign asked.

This page, its stylesheet and its script weigh 22 KB as sent, plus 18 KB for the picture: about 11 seconds on a 28.8k modem.