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scheduler: enable evict-slow-store scheduler by default. #7564

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LykxSassinator opened this issue Dec 18, 2023 · 0 comments · Fixed by #7505
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scheduler: enable evict-slow-store scheduler by default. #7564

LykxSassinator opened this issue Dec 18, 2023 · 0 comments · Fixed by #7505
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type/development The issue belongs to a development tasks

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@LykxSassinator
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In previous works mentioned in tikv/tikv#15909, we've:

  • Fine-tune the Slow-Score detection algorithm to reduce the false-positive rate of Slow-Score detection algorithm.
  • Reduce the reaction interval by modifying the default sampling interval of Slow-Score from 500ms to 100ms.

And, by testing, the fine-tuned SlowScore detection algorithm has considerable sensitiveness to Disk IO jitters, and lower false-positive rate to hotspots cases. So, it's the time to enable it by default.
@LykxSassinator LykxSassinator added the type/development The issue belongs to a development tasks label Dec 18, 2023
@LykxSassinator LykxSassinator mentioned this issue Dec 18, 2023
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ti-chi-bot bot pushed a commit that referenced this issue Dec 18, 2023
@LykxSassinator
scheduler: enable evict-slow-store by default. (#7505)
cfb1d8f 
close #7564, ref tikv/tikv#15909

Enable `evict-slow-store` scheduler by default.

Signed-off-by: lucasliang <nkcs_lykx@hotmail.com>
@cfzjywxk cfzjywxk mentioned this issue Mar 7, 2024
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scheduler: enable evict-slow-store by default. LykxSassinator/pd
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