Taking vLLM Apart: A Practical Guide to Disaggregated Serving
·19 min read
What disaggregated serving actually buys you, how to run it end to end in vLLM today with prefill/decode plus the new GPU-less frontend and the things we're still working on.
#disaggregation
11 posts
PD Serving of Qwen3.8-2.4T
·17 min read
How vLLM reaches 5K throughput and 180 interactivity on Qwen3.8-2.4T with GB300 NVL72 PD serving and how to reproduce results yourself.
Following the Bottleneck: Optimizing MiniMax M3 on AMD Instinct MI355X
·16 min read
A performance model for LLM serving: inspect local shapes, remove repeated work, verify data movement and dispatch, then follow the queue.
vLLM x AgentX: Optimizing for Real-World Agentic Serving
·24 min read
How vLLM optimizes KV cache management, parallelism, scheduling, and P/D disaggregation for agentic workloads, validated on SemiAnalysis AgentX with up to 130K tokens per GPU-second and a 14.6x-106x serving-cost advantage over Opus 5.
vLLM Reaches 25K Total TPS/GPU on Qwen3.5
·9 min read
How vLLM reaches 25K total TPS/GPU on Qwen3.5-397B-A17B-NVFP4 with GB200 NVL72 disaggregated serving, Blackwell GDN kernels, HMA cache transfer, async scheduling fixes, and srt-slurm recipes.
From Day 0 to Production SLAs: Serving GLM-5.2 on 24 NVIDIA B300 GPUs with vLLM
·18 min read
How we took GLM-5.2-NVFP4 from 40 ms to 17 ms mean TPOT on 24 B300 GPUs with vLLM: P/D disaggregation, MTP speculative decoding, Model Runner V2, and the SLA-first trade-offs behind the final configuration.
vLLM x TileRT: Specialized Decode for Latency-Critical Serving
·7 min read
vLLM prefill paired with TileRT decode through vLLM V1's connector interface: a specialized, latency-optimized decode engine that coexists with native vLLM decode behind one shared serving layer, with zero changes to vLLM.
vLLM x Novita AI: PegaFlow for Production-Grade External KV Cache
·13 min read
How PegaFlow integrates with vLLM as an external KV cache service, using a Rust daemon, CUDA IPC, RDMA, SSD caching, and the external KV connector to improve startup, sharing, throughput, and cache lifecycle.
Serving Agentic Workloads at Scale with vLLM x Mooncake
·10 min read
How vLLM integrates Mooncake Store as a distributed KV cache for agentic workloads, reusing shared prefixes across turns and instances to improve throughput, TTFT, end-to-end latency, and multi-GPU scaling.
Disaggregated Serving for Hybrid SSM Models in vLLM
·15 min read
How vLLM extends NIXL prefill/decode disaggregation to hybrid SSM-attention models with dual descriptor views, physical-logical block bridging, and Mamba conv-state transfer support.
Next-Level Inference: Why Your Single-Node vLLM Setup Needs Prefill-Decode Disaggregation
·22 min read
How single-node prefill/decode disaggregation in vLLM uses AMD MORI-IO on an 8-GPU MI300X node to separate prefill and decode, transfer KV cache efficiently, stabilize ITL, and improve goodput.