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GQA paged decode h32 kv8 d128 ps1

380 eligible runs
gqa-paged-attention

Batched Grouped Query Attention decode with a paged KV cache. Captured from Llama-3.1-8B.

Fastest reported
14.0µsmean · 91% of SOL
Amir M. Mir | SF TensorLicense unknown · unknown

Reported evidence · last observed 2026-08-21. Reported by source; not independently reproduced. No public source. License unknown.

No public sourceRun detail →

Current records

Workloadsuite of 48 cases · mean latency96 cases
num_kv_indices
num_pages
batch_size
len_indptr
head_dim
num_kv_heads
num_qo_heads
page_size
dtype
21812————bf16218121288321bf16101112————bf161011121288321bf16141512————bf161415121288321bf16385512————bf163855121288321bf16425912————bf164259121288321bf16466312————bf164663121288321bf16506712————bf165067121288321bf16547112————bf165471121288321bf16577412————bf165774121288321bf16617812————bf166178121288321bf16658212————bf166582121288321bf1673931612————bf16739316121288321bf1698934112————bf16989341121288321bf1617322312————bf16173223121288321bf1635640612————bf16356406121288321bf1654759712————bf16547597121288321bf16103410691617————bf161034106916171288321bf16119312201617————bf161193122016171288321bf16136913961617————bf161369139616171288321bf16152915561617————bf161529155616171288321bf16170517321617————bf161705173216171288321bf16186518921617————bf161865189216171288321bf16202520521617————bf162025205216171288321bf16218522121617————bf162185221216171288321bf16234523721617————bf162345237216171288321bf16252125481617————bf162521254816171288321bf16268127081617————bf162681270816171288321bf16284128681617————bf162841286816171288321bf16301730441617————bf163017304416171288321bf16429843331617————bf164298433316171288321bf1612942813901617————bf16129428139016171288321bf1620911301631617————bf16209113016316171288321bf1650902600716465————bf16509026007164651288321bf1653334626056465————bf16533346260564651288321bf1653782630536465————bf16537826305364651288321bf1654166634376465————bf16541666343764651288321bf1654550638216465————bf16545506382164651288321bf1654934642056465————bf16549346420564651288321bf1655382646536465————bf16553826465364651288321bf1655766650376465————bf16557666503764651288321bf1656150654216465————bf16561506542164651288321bf1656534658056465————bf16565346580564651288321bf1656982662536465————bf16569826625364651288321bf1657366666376465————bf16573666663764651288321bf1657750670216465————bf16577506702164651288321bf1658134674056465————bf16581346740564651288321bf1658582678536465————bf16585826785364651288321bf1658966682376465————bf16589666823764651288321bf16
scrolls · 96 cases total

Not measured on H100 for this workload. Challenges →

Source-native comparison · GPU NVIDIA B200 · Workload suite of 48 cases · mean latency · Protocol SOL-ExecBench evaluation stack v1.1 · mean · 27 results · last observed 2026-08-21Record history →
#
Implementation
Latency
vs #1
Trust
Observed
1
14.0µs91% SOL
1.00×
Reported · license unknown · no source
2026-08-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
2
14.2µs91% SOL
1.01×
Reported · license unknown · no source
2026-08-13

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
3
14.2µs91% SOL
1.01×
Reported · license unknown · no source
2026-08-13

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
4
14.3µs91% SOL
1.02×
Reported · license unknown · no source
2026-08-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
5
15.8µs90% SOL
1.12×
Reported · license unknown · no source
2026-08-01

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
6
15.9µs90% SOL
1.13×
Reported · license unknown · no source
2026-08-01

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
7
15.9µs90% SOL
1.13×
Reported · license unknown · no source
2026-08-02

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
8
16.4µs90% SOL
1.17×
Reported · license unknown · no source
2026-08-01

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
9
16.4µs90% SOL
1.17×
Reported · license unknown · no source
2026-07-23

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
10
16.4µs90% SOL
1.17×
Reported · license unknown · no source
2026-07-30

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
11
16.8µs89% SOL
1.20×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
12
17.1µs89% SOL
1.22×
Reported · license unknown · no source
2026-07-30

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
13
17.3µs89% SOL
1.23×
Reported · license unknown · no source
2026-08-05

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
14
18.1µs88% SOL
1.29×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
15
18.1µs89% SOL
1.29×
Reported · license unknown · no source
2026-07-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
16
18.2µs89% SOL
1.29×
Reported · license unknown · no source
2026-07-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
17
18.3µs88% SOL
1.30×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
18
18.6µs88% SOL
1.32×
Reported · license unknown · no source
2026-07-23

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
19
19.2µs87% SOL
1.37×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
20
20.5µs87% SOL
1.46×
Reported · license unknown · no source
2026-07-18

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
21
20.6µs87% SOL
1.47×
Reported · license unknown · no source
2026-07-16

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
22
22.1µs85% SOL
1.57×
Reported · license unknown · no source
2026-08-03

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
23
23.3µs85% SOL
1.66×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
24
27.2µs82% SOL
1.94×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
25
36.3µs77% SOL
2.59×
Reported · license unknown · no source
2026-07-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
26
39.1µs75% SOL
2.78×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
27
102.6µs54% SOL
7.31×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →

Implementations

Implementation
Runtime
Best latency
Evidence
Availability
unknown
14.0µs
1.71×
Reported
license unknown · no source
unknown
15.9µs
1.94×
Reported
license unknown · no source
unknown
16.4µs
2.00×
Reported
license unknown · no source
unknown
16.4µs
2.00×
Reported
license unknown · no source
unknown
16.3µs
1.99×
Reported
license unknown · no source
unknown
18.0µs
2.20×
Reported
license unknown · no source
unknown
19.8µs
2.42×
Reported
license unknown · no source
unknown
19.2µs
2.34×
Reported
license unknown · no source
Show all 53 implementations ›
unknown
20.5µs
2.50×
Reported
license unknown · no source
unknown
20.3µs
2.48×
Reported
license unknown · no source
unknown
21.6µs
2.64×
Reported
license unknown · no source
unknown
22.1µs
2.69×
Reported
license unknown · no source
unknown
27.0µs
3.30×
Reported
license unknown · no source
unknown
101.2µs
12.35×
Reported
license unknown · no source
unknown
126.1µs
15.39×
Reported
license unknown · no source
unknown
14.3µs
1.74×
Reported
license unknown · no source
unknown
15.9µs
1.94×
Reported
license unknown · no source
unknown
15.9µs
1.94×
Reported
license unknown · no source
unknown
16.4µs
2.00×
Reported
license unknown · no source
unknown
17.3µs
2.11×
Reported
license unknown · no source
unknown
16.8µs
2.05×
Reported
license unknown · no source
unknown
17.1µs
2.09×
Reported
license unknown · no source
unknown
18.1µs
2.21×
Reported
license unknown · no source
unknown
18.2µs
2.22×
Reported
license unknown · no source
unknown
18.6µs
2.26×
Reported
license unknown · no source
unknown
18.1µs
2.20×
Reported
license unknown · no source
unknown
18.1µs
2.21×
Reported
license unknown · no source
unknown
18.3µs
2.23×
Reported
license unknown · no source
unknown
19.1µs
2.33×
Reported
license unknown · no source
unknown
20.6µs
2.52×
Reported
license unknown · no source
unknown
23.3µs
2.84×
Reported
license unknown · no source
unknown
27.2µs
3.32×
Reported
license unknown · no source
unknown
28.2µs
3.45×
Reported
license unknown · no source
unknown
34.6µs
4.23×
Reported
license unknown · no source
unknown
36.3µs
4.43×
Reported
license unknown · no source
unknown
39.1µs
4.77×
Reported
license unknown · no source
unknown
39.1µs
4.77×
Reported
license unknown · no source
unknown
46.9µs
5.72×
Reported
license unknown · no source
unknown
55.9µs
6.82×
Reported
license unknown · no source
unknown
102.6µs
12.52×
Reported
license unknown · no source
unknown
126.4µs
15.43×
Reported
license unknown · no source
unknown
14.2µs
1.73×
Reported
license unknown · no source
unknown
14.2µs
1.73×
Reported
license unknown · no source
unknown
15.8µs
1.92×
Reported
license unknown · no source
claude-opus-4-1 / cuda86c432claude-opus-4-1-20250805
cuda
—
—
Apache-2.0 · source
claude-opus-4-1 / triton4080e2claude-opus-4-1-20250805
triton
14.7µs
1.79×
Reported
Apache-2.0 · source
cuda
—
—
Apache-2.0 · source
triton
25.0µs
3.05×
Reported
Apache-2.0 · source
gpt-5 / cuda95c7fegpt-5-2025-08-07
cuda
8.19µs
1.00×
Reproduction-ready
Apache-2.0 · source
gpt-5 / tritoncb1275gpt-5-2025-08-07
triton
86.8µs
10.60×
Reported
Apache-2.0 · source
cuda
10.4µs
1.27×
Reproduction-ready
Apache-2.0 · source
triton
10.3µs
1.26×
Reported
Apache-2.0 · source
flashinfer / wrappera9588fFlashInfer-Bench baselines
python
8.26µs
1.01×
Reported
Apache-2.0 · source

Semantics

Inputs and outputs
qbf16 [batch_size, num_qo_heads, head_dim]
k_cachebf16 [num_pages, page_size, num_kv_heads, head_dim]
v_cachebf16 [num_pages, page_size, num_kv_heads, head_dim]
kv_indptrint32 [len_indptr]
kv_indicesint32 [num_kv_indices]
sm_scalefp32 scalar
outputbf16 [batch_size, num_qo_heads, head_dim]
lsefp32 [batch_size, num_qo_heads]
Axes and behavior
head_dimconstant = 128
num_pagesvariable
page_sizeconstant = 1
batch_sizevariable
len_indptrvariable
num_kv_headsconstant = 8
num_qo_headsconstant = 32
num_kv_indicesvariable
determinismunspecified
constraintsNo mutation or aliasing
Identity
aliasgqa_paged_decode_h32_kv8_d128_ps1modelllama-3-1-8bsha2563d5d8bb3aaf9…

Also indexed as 013-gqa-paged-decode-h32-kv8-d128-ps1 · reviewed as the same computation; every definition's cohorts are shown here, ranked separately.

Sources: FlashInfer-Bench (2025-10-21) · Apache-2.0 · NVIDIA SOL-ExecBench (2026-08-21)last observed 2026-08-21How records are decidedJSON