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Adding dynamic swap number and defragmenter warmup #183
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mswiniarsk
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Sep 25, 2025
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Adding dynamic swap number and defragmenter warmup #183
mswiniarsk
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vllm-project:main
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ksmusz:dev/ksmusz/defrag_warmup_and_dynamic_swap
Sep 25, 2025
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Signed-off-by: Krzysztof Smusz <ksmusz@habana.ai>
Signed-off-by: Krzysztof Smusz <ksmusz@habana.ai>
Signed-off-by: Krzysztof Smusz <ksmusz@habana.ai>
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madamczyk-intel
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mswiniarsk
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Introducing dynamic swap buckets to defragmenter, together with defragmenter warmup. Currently only a maximum of 32 blocks can be swapped of one iteration of a defragmenter. This change introduces a bucketing system, which asserts the minimal size bucket of swaps to be done in current defragmenter iteration based on actual number of blocks, that need to be swapped. Size of the buckets range from 8 swaps up to 512 swaps in a single defragmenter run. As the number of possible swap buckets grew from a single size bucket, a warmup of defragmenter has been added. Thanks to the warmup, no additional graph compilations connected to the defragmenter were visible during the inference. cherry-pick #183 Signed-off-by: Krzysztof Smusz <ksmusz@habana.ai> Co-authored-by: Marcin Swiniarski <marcin.swiniarski@intel.com>
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Introducing dynamic swap buckets to defragmenter, together with defragmenter warmup. Currently only a maximum of 32 blocks can be swapped of one iteration of a defragmenter. This change introduces a bucketing system, which asserts the minimal size bucket of swaps to be done in current defragmenter iteration based on actual number of blocks, that need to be swapped. Size of the buckets range from 8 swaps up to 512 swaps in a single defragmenter run. As the number of possible swap buckets grew from a single size bucket, a warmup of defragmenter has been added. Thanks to the warmup, no additional graph compilations connected to the defragmenter were visible during the inference. --------- Signed-off-by: Krzysztof Smusz <ksmusz@habana.ai> Co-authored-by: Marcin Swiniarski <marcin.swiniarski@intel.com> Signed-off-by: Iryna Boiko <iboiko@habana.ai>
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Introducing dynamic swap buckets to defragmenter, together with defragmenter warmup.
Currently only a maximum of 32 blocks can be swapped of one iteration of a defragmenter. This change introduces a bucketing system, which asserts the minimal size bucket of swaps to be done in current defragmenter iteration based on actual number of blocks, that need to be swapped. Size of the buckets range from 8 swaps up to 512 swaps in a single defragmenter run.
As the number of possible swap buckets grew from a single size bucket, a warmup of defragmenter has been added. Thanks to the warmup, no additional graph compilations connected to the defragmenter were visible during the inference.