Introduce kthena

[hzxuzhonghu]

• Please check if the PR fulfills these requirements

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• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

/kind documentation

• What this PR does / why we need it:

This is adding a blog to introduce kthena

• Which issue(s) this PR fixes:

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[gemini-code-assist]

Summary of Changes

Hello @hzxuzhonghu, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces Kthena, a new subproject within the Volcano community, designed to address the complex challenges of deploying and serving large language models (LLMs) efficiently on Kubernetes. By integrating advanced routing, orchestration, and scheduling mechanisms, Kthena provides a robust cloud-native solution to enhance resource utilization, optimize performance, and simplify the management of LLM inference workloads in production environments.

Highlights

• Kthena Introduction: A new Volcano subproject, Kthena, is introduced, focusing on cloud-native LLM inference.
• Purpose: Kthena aims to optimize LLM inference on Kubernetes by improving GPU/NPU resource utilization, throughput, and reducing latency.
• Architecture: Kthena comprises two main components: Kthena Router for intelligent request distribution and Kthena Controller Manager for LLM workload orchestration and lifecycle management.
• Key Features: Includes production-grade inference orchestration (ModelServing), out-of-the-box model deployment (ModelBooster), intelligent model-aware routing, cost-driven autoscaling, and support for diverse hardware and inference engines.
• Performance Gains: Demonstrates significant performance improvements, such as a 2.73x increase in throughput and a 73.5% reduction in TTFT for long prompts with KV Cache aware scheduling.

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[gemini-code-assist]

Code Review

本次 PR 旨在为 Kthena 项目添加一篇介绍性的博客文章。文章内容翔实，撰写得很好。我对 Markdown 文件提出了一些小的语法和拼写修正建议。此外，SVG 图像文件可以进行优化以减小其文件大小，从而提升页面加载性能。

[hzxuzhonghu]

@kevin-wangzefeng

[JesseStutler]

Looks like a new line is needed here, as the current rendering is not showing the effect. Also same as point 5 and point 6:

[hzxuzhonghu]

fixed

[JesseStutler]

/lgtm
Please also /cc @kevin-wangzefeng

[Arhell]

lgtm