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abstract indexed · arXiv 2609.29160 · updated 2026-10-18

Cross-Model Autoscaling for Shared LLM Serving

First page of Cross-Model Autoscaling for Shared LLM Serving
From the original paper · arXiv 2609.29160Page 1. Select the image to read the PDF.

TRE replaces model-local reactive autoscaling (e.g., KV-cache-utilization signals) with a calibrated, demand-normalized Token Service Share metric that arbitrates replica capacity across co-hosted models under a fixed GPU budget, separating fast rescue from slower rebalancing. It costs a Kubernetes-based hot-switch serving stack and control-plane instrumentation, though it requires no changes to the inference scheduler and no extra GPUs. It can fail when TSS calibration does not transfer to a model's actual latency-SLO relationship, when hot-switching overheads dominate at small replica counts, or when the workload is a single model with no cross-model contention to arbitrate.

For solo builders

A possible application for this research area. Paper-specific feasibility still needs a full-paper review.

Your inference service slows down when several customers send requests together.

What you would change

Replay a recorded request trace with only the proposed serving policy changed.

Try the idea on your product

A proposed first test. Set your budget and success criteria before running it.

Replay a recorded request trace with only the proposed serving policy changed.

Compare against

Your current scheduler on the same model and hardware.

  1. Locate the paper's implementation and check its license, model support, data needs, and hardware requirements. Stop here if you cannot obtain the required artifacts.
  2. Save a small set of representative product tasks and expected outcomes. Keep evaluation tasks out of any training or tuning, and choose quality and cost limits before running.
  3. Run the baseline and the proposed change on identical inputs. Keep other settings fixed and repeat paired runs to expose variation.
  4. Save per-task outputs, failures, timings, and all usage costs. Review regressions before expanding the test.

What to measure

Requests meeting your latency target, throughput, failures, and cost per successful request.

When to keep it

Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation.

Download test plan ↓

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Do not allocate compute yet.

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Abstract-level screening only. Risks and infrastructure may not have been evaluated. This recommendation is not a reproduced result.
minimum test setup
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published evidence setup
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source-linked claims
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exposure checks
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Why it was shortlisted

The technical change, research area, and reason it entered the archive.

recommendation
watch
research area
serving and batching
technical change
Cross-model token-service-share autoscaling for shared GPU serving
published
2026-09-24

The method targets multi-model shared clusters with replica-level reallocation, which exceeds what a single 24 GB GPU can exploit, but the calibrated service-deficit signal is worth tracking if the reader later co-hosts multiple models.

About the technical core

Equations have not been fetched yet.

When reading the methods, identify the rule, algorithm, or evaluation protocol that produces the claimed change. An equation is useful here only if it explains that mechanism.

Inspect the original paper

Claims and evidence

A claim is source-linked only when the PDF page and matching excerpt are available.

  1. claim 01Paperraft inference
    Read the brief interpretation

    TRE replaces model-local reactive autoscaling (e.g., KV-cache-utilization signals) with a calibrated, demand-normalized Token Service Share metric that arbitrates replica capacity across co-hosted models under a fixed GPU budget, separating fast rescue from slower rebalancing. It costs a Kubernetes-based hot-switch serving stack and control-plane instrumentation, though it requires no changes to the inference scheduler and no extra GPUs. It can fail when TSS calibration does not transfer to a model's actual latency-SLO relationship, when hot-switching overheads dominate at small replica counts, or when the workload is a single model with no cross-model contention to arbitrate.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source
  2. claim 02Paperraft inference

    Reduces P95 end-to-end latency by 11.9-79.0% and P99 by 12.5-72.6% versus a KV-cache-based reactive autoscaler on the same hot-switch runtime, across seven serving traces.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source

Exposure map

Author findings, Paperraft interpretations, and the next check. Missing analysis never counts as evidence of safety.

quality

Still unknown

Which tasks improve, and which regress against the baseline?

compute and memory

Still unknown

What memory, hardware, and total compute does the complete method require?

latency

Still unknown

Are startup time, typical response time, and slow requests measured separately?

operations

Still unknown

What must be monitored, maintained, and rolled back?

software compatibility

Still unknown

Does the implementation support your model, runtime, and hardware?

security

Still unknown

What new data access, permissions, or trust boundaries does it introduce?

data and training

Still unknown

What data preparation or training is required, and is it included in the cost?

reproducibility

Still unknown

Are code, versions, inputs, and evaluation scripts available?

Continue the investigation

A reading guide for serving and batching.

Editorial prompts, not findings from this paper or a validated test plan. Detailed analysis is still pending for the topics below.

What to inspect

What arrival pattern, concurrency, and context lengths drive the reported result?

Plan a fair comparison

Can you replay one request trace and compare throughput, tail latency, failures, and total cost?

Questions for adoption

Does the method still meet your latency target during bursts and with mixed request lengths?

Read the paper with these questions

Inside the paper

Preview the first 3 pages of the original PDF. Click the stack to turn the page.

The downloadable skill includes SKILL.md and evidence.json, with recorded findings and unanswered checks. TRY-IT.md adds a product test plan and a blank results sheet.

A reading aid for your agent. Findings still need validation.

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Provisional research brief updated 2026-10-18. Paperraft has not reproduced this experiment.

Discuss this paper

Question a claim, compare interpretations, or share what happened when you tried the method.

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arXiv 2609.29160

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