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llama-bench : accept ranges for integer parameters #13410

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e142e97
llama-bench : accept ranges for integer parameters
slaren May 9, 2025
9c47aaf
start-end => first-last
slaren May 9, 2025
5a7754a
update variable names
slaren May 9, 2025
a175464
add exponential steps, update documentation
slaren May 11, 2025
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30 changes: 19 additions & 11 deletions tools/llama-bench/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -20,10 +20,20 @@ Performance testing tool for llama.cpp.
## Syntax

```
usage: ./llama-bench [options]
usage: build/bin/llama-bench [options]

options:
-h, --help
--numa <distribute|isolate|numactl> numa mode (default: disabled)
-r, --repetitions <n> number of times to repeat each test (default: 5)
--prio <0|1|2|3> process/thread priority (default: 0)
--delay <0...N> (seconds) delay between each test (default: 0)
-o, --output <csv|json|jsonl|md|sql> output format printed to stdout (default: md)
-oe, --output-err <csv|json|jsonl|md|sql> output format printed to stderr (default: none)
-v, --verbose verbose output
--progress print test progress indicators

test parameters:
-m, --model <filename> (default: models/7B/ggml-model-q4_0.gguf)
-p, --n-prompt <n> (default: 512)
-n, --n-gen <n> (default: 128)
Expand All @@ -33,7 +43,7 @@ options:
-ub, --ubatch-size <n> (default: 512)
-ctk, --cache-type-k <t> (default: f16)
-ctv, --cache-type-v <t> (default: f16)
-t, --threads <n> (default: 8)
-t, --threads <n> (default: 16)
-C, --cpu-mask <hex,hex> (default: 0x0)
--cpu-strict <0|1> (default: 0)
--poll <0...100> (default: 50)
Expand All @@ -44,17 +54,15 @@ options:
-nkvo, --no-kv-offload <0|1> (default: 0)
-fa, --flash-attn <0|1> (default: 0)
-mmp, --mmap <0|1> (default: 1)
--numa <distribute|isolate|numactl> (default: disabled)
-embd, --embeddings <0|1> (default: 0)
-ts, --tensor-split <ts0/ts1/..> (default: 0)
-r, --repetitions <n> (default: 5)
--prio <0|1|2|3> (default: 0)
--delay <0...N> (seconds) (default: 0)
-o, --output <csv|json|jsonl|md|sql> (default: md)
-oe, --output-err <csv|json|jsonl|md|sql> (default: none)
-v, --verbose (default: 0)

Multiple values can be given for each parameter by separating them with ',' or by specifying the parameter multiple times.
-ot --override-tensors <tensor name pattern>=<buffer type>;...
(default: disabled)
-nopo, --no-op-offload <0|1> (default: 0)

Multiple values can be given for each parameter by separating them with ','
or by specifying the parameter multiple times. Ranges can be given as
'start-end' or 'start-end+step' or 'start-end*mult'.
```

llama-bench can perform three types of tests:
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