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This reverts commit 27e327b.
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Summary of Changes
Hello @hnyls2002, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request serves as a direct revert of a prior change (#6671), specifically targeting the logic for calculating KV cache page counts in the schedule_batch.py module. Its purpose is to restore the original behavior of the new_page_count_next_decode function, effectively undoing an adjustment made to sequence length calculations and removing the associated explanatory comment.
Highlights
- Revert Logic: Undid a previous modification in the
new_page_count_next_decodefunction withinschedule_batch.py. This reverts the condition for calculating KV cache page counts from(req.seqlen - 1) % page_size == 0back toreq.seqlen % page_size == 0. - Code Cleanup: Removed a two-line comment explaining the previous logic related to the
seqlen - 1adjustment, as that logic has now been reverted.
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@pansicheng, please give your test scenarios and reproduction scripts. After this PR, we will probably encounter a decode OOM. |
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Code Review
The code reverts a change in the new_page_count_next_decode function in schedule_batch.py. The change removes the subtraction of 1 from req.seqlen when calculating the sum, which affects how the length of a request's KV cache is determined during the decoding phase.
Reverts #6671