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perf: unexpectedly high read latency on slow disk with the new io model #873

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MrCroxx opened this issue Mar 6, 2025 · 0 comments · May be fixed by #874
Open

perf: unexpectedly high read latency on slow disk with the new io model #873

MrCroxx opened this issue Mar 6, 2025 · 0 comments · May be fixed by #874
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@MrCroxx
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perf Performance optimization
Milestone
v0.15

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@MrCroxx
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MrCroxx commented Mar 6, 2025

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Unexpectedly high read latency on slow disk with the new io model.

The read latency p99 is affected by the write latency p99.

I recognize it!

Image

https://docs.google.com/presentation/d/1qeM-b6pBlgBQsUQKcx7ezu4ZVMtM_-uRyLbot8Z-WD8/edit?usp=sharing
@MrCroxx MrCroxx added the perf Performance optimization label Mar 6, 2025
@MrCroxx MrCroxx added this to the v0.15 milestone Mar 6, 2025
@MrCroxx MrCroxx self-assigned this Mar 6, 2025
@MrCroxx MrCroxx linked a pull request Mar 6, 2025 that will close this issue
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perf Performance optimization
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foyer - Development Roadmap
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v0.15
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perf: split large io by flush_io_size in the new model foyer-rs/foyer
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