Lower mean
request latency
54.4 s→13.0 s
END-TO-ENDTHE WORKLOAD KEEPS CHANGING
Agents reason, code, act, and start new work.
Their infrastructure should move with them.
FREEDOM TO ADAPT
Same hardware. More freedom.
Infrastructure that adapts as agents work.
Unlock the degrees of freedom.
126 coding agents. 36 GB300 GPUs.
One hour of serving, side by side.
54.4 s→13.0 s
END-TO-END228.4 s→19.6 s
TAIL LATENCY52→117
IN ONE HOURCompared with Dynamo in the demo runs: GLM-5.2, 126 concurrent Claude Code agents, and the same 36 GB300 GPUs. Scored over one hour after a 30-minute warmup. E2E measures individual LLM requests.
Your agents are evolving.
Your infrastructure can, too.
A system can only adapt along the dimensions it can change.
When compute roles, KV placement, and request routing are tightly coupled, adjusting one disrupts the others. Evolving Infra separates compute allocation from KV cache management, opening the space for runtime adaptation.
Symmetric engines let every node serve prefill or decode without a restart. A shared host-memory KV pool keeps reusable context accessible when compute roles change.
DECOUPLED INFRASTRUCTUREThe planner learns prefill and decode costs online, accounting for cached context. It reallocates nodes when a workload shift persists, without offline profiling.
WORKLOAD-AWARE PLANNINGThe router balances load and fetches KV while requests wait. A branch-aware directory follows context changes, retaining useful KV and evicting unreferenced copies first.
AGENT-AWARE KV MANAGEMENTOne router assigns prefill and decode work to symmetric engines. The host memory of all nodes forms a shared KV pool, and a cluster-wide directory tracks the active branches that reference each copy.
Across a three-hour shift from math to computer-use agents, Evolving Infra reaches 2.1× Dynamo’s throughput and 28% more than the best static split.
In the paper’s stationary benchmarks, mean request latency improves by up to 4.1× and P95 TTFT by up to 14× over Dynamo. These are separate benchmark runs from the demo above.
Gray: Dynamo. Red: Evolving Infra. Upper panels show mean request E2E, lower panels P95 TTFT. The planner can trade TTFT for decode throughput: Putnam has higher P95 TTFT at 224 and 288 agents while mean request latency improves.
THE RESEARCH BEHIND THE SYSTEM
Evolving Infra: Decoupling Compute Allocation and KV Cache Management for Agent-Adaptive LLM Serving
* Equal contribution. Technical report and BibTeX coming soon.