Add kthena blog english version

[hzxuzhonghu]

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines

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

/kind documentation

• What this PR does / why we need it:
  Following Introduce kthena #436

• Which issue(s) this PR fixes:

[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 a new English blog post that formally announces and describes Kthena, a new sub-project under Volcano. Kthena is presented as a Kubernetes-native, high-performance system designed to optimize Large Language Model (LLM) inference by providing advanced routing, orchestration, and scheduling capabilities. The post elaborates on how Kthena tackles common challenges in deploying LLMs at scale, aiming to improve GPU/NPU utilization, reduce latency, and simplify multi-model management within cloud-native environments.

Highlights

• New Blog Post: A new English blog post has been added, introducing Kthena, a new sub-project of Volcano focused on cloud-native LLM inference.
• Kthena's Purpose: The blog post details how Kthena addresses critical challenges in LLM serving on Kubernetes, such as low resource utilization, latency vs. throughput trade-offs, complex multi-model management, and the need for native K8s integration.
• Core Features: Kthena's key capabilities are outlined, including production-grade inference orchestration (ModelServing), out-of-the-box deployment (ModelBooster), intelligent model-aware routing, cost-driven autoscaling, broad hardware and engine support, and built-in flow control and fairness.
• Performance Gains: The post highlights significant performance improvements, such as a ~2.73x increase in throughput and a ~73.5% reduction in Time To First Token (TTFT) when using Kthena's KV Cache Awareness + Least Request strategy for long system prompts.

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[gemini-code-assist]

Code Review

This pull request adds a new blog post introducing Kthena. The content looks informative. However, I've found a critical issue where the entire blog post content is duplicated within the same file, which needs to be resolved. I've also left a medium-severity comment regarding an inconsistency between the filename and the post's title, which could be improved for better maintainability and cleaner URLs.

[hzxuzhonghu]

@JesseStutler

[JesseStutler]

/approve
/lgtm
Thanks!

[volcano-sh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JesseStutler

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