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Auto-tune cache sizes #3876

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ara4n opened this issue Sep 15, 2018 · 4 comments
Open

Auto-tune cache sizes #3876

ara4n opened this issue Sep 15, 2018 · 4 comments
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A-Performance Performance, both client-facing and admin-facing O-Occasional Affects or can be seen by some users regularly or most users rarely S-Minor Blocks non-critical functionality, workarounds exist. T-Enhancement New features, changes in functionality, improvements in performance, or user-facing enhancements.
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Server Density

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@ara4n
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ara4n commented Sep 15, 2018

Rather than expecting people to manually tune their cache sizes, surely Synapse should be able to figure it out itself (perhaps within some bounds), a bit like a JVM
@ara4n ara4n mentioned this issue Sep 24, 2018
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@neilisfragile neilisfragile added z-p2 (Deprecated Label) A-Performance Performance, both client-facing and admin-facing labels Oct 5, 2018
@richvdh
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richvdh commented Oct 21, 2020

related: #2123

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richvdh commented Oct 21, 2020

also #6400

@richvdh richvdh mentioned this issue Oct 21, 2020
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@erikjohnston erikjohnston added this to the Server Density milestone Jul 11, 2022
@erikjohnston
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https://dgraph.io/blog/post/introducing-ristretto-high-perf-go-cache/ has interesting ideas we could steal

@squahtx squahtx added P3 (OBSOLETE: use S- labels.) Approved backlog: not yet scheduled, will accept patches S-Tolerable Minor significance, cosmetic issues, low or no impact to users. T-Enhancement New features, changes in functionality, improvements in performance, or user-facing enhancements. labels Jul 12, 2022
@erikjohnston
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Specifically: it'd be a good start to implement TinyLFU to decide what we allow to be added to the cache. Not sure there are any python libraries for it, but there are Rust ones we might be able to use.

@DMRobertson DMRobertson added S-Minor Blocks non-critical functionality, workarounds exist. O-Occasional Affects or can be seen by some users regularly or most users rarely and removed z-p2 (Deprecated Label) P3 (OBSOLETE: use S- labels.) Approved backlog: not yet scheduled, will accept patches S-Tolerable Minor significance, cosmetic issues, low or no impact to users. labels Oct 19, 2022
@matrixbot matrixbot mentioned this issue Dec 21, 2023
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A-Performance Performance, both client-facing and admin-facing O-Occasional Affects or can be seen by some users regularly or most users rarely S-Minor Blocks non-critical functionality, workarounds exist. T-Enhancement New features, changes in functionality, improvements in performance, or user-facing enhancements.
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@neilisfragile @ara4n @richvdh @squahtx @erikjohnston @DMRobertson