Report · resources

Structured tasks

Qwen3.8-27B · NVFP4 variant · SGLang dev · speculative decoding

Measured results / Structured tasks / Run 4d30da78f0b56f97709f43d6

Measured 2026-10-05 22:21 UTC · Record date 2026-10-05

Partial. 15/16 tasks6/6 request checks

Code writing speedcode_decode_tps · tok/s
57.53 tok/sper person · mean of 3
Prose writing speedchat_decode_tps · tok/s
34.33 tok/sper person · mean of 3
Machine totalaggregate_e2e_tps · tok/s
56.92 tok/smachine total · single · sample count not recorded
Peak memory, whole hostpeak_host_unavailable_gib · GiB
113.64 GiBmachine total · max · sample count not recorded

Runs on this setup

Earlier runs keep their own engine versions and outcomes. Workload shapes stay separate.

History and measured sweep
History of this setup, newest first
DateShapeEach person · medianMachine totalFirst word · medianResultRun
2026-10-05
1 people
not recorded
56.92 tok/s
not recorded
Partial
2026-10-05
unknown people
not recorded
not recorded
not recorded
Failed
2026-10-05
unknown people
not recorded
not recorded
not recorded
Failed
2026-10-05
unknown people
not recorded
not recorded
not recorded
Partial

Answer checks

15/16 tasks6/6 request checks

Method

Managed package drive with unchanged runtime identity. Sixteen strict structured-context tasks each at concurrency 1 and 2, request seed 17, thinking off. Separate speed smoke: one warmup then three 512-token code/prose requests each at concurrency 1; arithmetic mean of completion tokens divided by first-content-to-DONE time. Aggregate, when present, is a separate warm four-request window at concurrency 2, including TTFT.

Limits

Bounded lab package proof only; configured 262144 context is not long-context quality. Memory is sampled whole-host unavailable memory during speed, not allocator residency or the entire drive peak. Candidate: one concurrency-2 answer returned fenced JSON and failed the unchanged strict contract. Uncalibrated FP8 KV scales remain a quality caveat.

What did not work

  • 15/16 tasks passed.

What ran

Exact identity

Original publisher model
Qwen3.8-27B
Publisher revision
1d4bf0f2ff6012fd82039f2fa52739d0dd7c60c0
Variant · format · precision
NVFP4 variant · safetensors · NVFP4
Weights SHA-256
not recorded
Engine · version · feature
SGLang · 0.0.0.dev0+qwen38.27b.g561c8f3 · speculative decoding
Hardware
NVIDIA GB10, 128 GB unified memory
Harness / workload
not recorded
Workload suite · version
not recorded
Harness SHA-256
446eae1b7d949003bd1379b1d1614c10b4f484a093cea9a3dbab7db56672fe5b
Fixture SHA-256
not recorded

Workload shape

People in this run
1
Configured window (tokens)
262144
KV cache precision
fp8_e4m3
Output token ceiling
512
Feature
speculative decoding

Full reproduction pack available to customers and evaluators on request

All recorded numbers

Metric definitions, scope and statistics
All aggregate numeric result fields in this run
MetricValueScopeStatisticSample countBasis / source fieldRun
workload total
16.00 count
machine total
single
not recorded
workload_total
chat decode tps
34.33 tok/s
per person
mean
3
chat_decode_tps
requests ok
6.00 count
machine total
single
not recorded
requests_ok
code ttft mean s
0.19 s
per person
mean
3
code_ttft_mean_s
workload passed
15.00 count
machine total
single
not recorded
workload_passed
aggregate concurrency
2.00 count
machine total
single
not recorded
aggregate_concurrency
requests total
6.00 count
machine total
single
not recorded
requests_total
aggregate e2e tps
56.92 tok/s
machine total
single
not recorded
aggregate_tps
code decode tps
57.53 tok/s
per person
mean
3
code_decode_tps
chat ttft mean s
0.19 s
per person
mean
3
chat_ttft_mean_s
peak host unavailable gib
113.64 GiB
machine total
max
not recorded
peak_host_unavailable_gib

Data and citation

Skilak Keep evidence, run 4d30da78f0b56f97709f43d6, measured 2026-10-05T22:21:12.790316+00:00.
https://skilak.ai/keep/resources/evidence/r/4d30da78f0b56f97709f43d6

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