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[GH-ISSUE #53] question about the peak reading throughput of KV Cache #33

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opened 2026-10-26 09:43:49 +00:00 by bsakaguchi · 3 comments
bsakaguchi commented 2026-10-26 09:43:49 +00:00
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Originally created by @DoubleEspresso-7 on GitHub (Mar 3, 2025).
Original GitHub issue: https://github.com/deepseek-ai/3FS/issues/53

The compute node just has a 1x200 Gbps NIC，so how the peak reading throughput of KV Cache can reach 40 GiB/s？

Does the KV cache storage system use the DRAM to save some hot KV Cache in the compute node？

Hope for your answer！Thank you！

Originally created by @DoubleEspresso-7 on GitHub (Mar 3, 2025). Original GitHub issue: https://github.com/deepseek-ai/3FS/issues/53 The compute node just has a 1x200 Gbps NIC，so how the peak reading throughput of KV Cache can reach 40 GiB/s？ Does the KV cache storage system use the DRAM to save some hot KV Cache in the compute node？ Hope for your answer！Thank you！
bsakaguchi commented 2026-10-26 09:43:50 +00:00
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@SF-Zhou commented on GitHub (Mar 3, 2025):

The compute node for KVCache use a 1x400Gbps NIC.

<!-- gh-comment-id:2693460161 --> @SF-Zhou commented on GitHub (Mar 3, 2025): The compute node for KVCache use a 1x400Gbps NIC.
bsakaguchi commented 2026-10-26 09:43:50 +00:00
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@DoubleEspresso-7 commented on GitHub (Mar 3, 2025):

Thank you！Maybe you can add this information in the KV Cache part to avoid misunderstanding.

<!-- gh-comment-id:2693474474 --> @DoubleEspresso-7 commented on GitHub (Mar 3, 2025): Thank you！Maybe you can add this information in the KV Cache part to avoid misunderstanding.
bsakaguchi commented 2026-10-26 09:43:50 +00:00
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@SF-Zhou commented on GitHub (Mar 3, 2025):

Thank you！Maybe you can add this information in the KV Cache part to avoid misunderstanding.

Done!

<!-- gh-comment-id:2693595628 --> @SF-Zhou commented on GitHub (Mar 3, 2025): > Thank you！Maybe you can add this information in the KV Cache part to avoid misunderstanding. Done!
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