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Keep experiment_crates in the page cache #757

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Dec 14, 2024
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Keep experiment_crates in the page cache #757

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5 changes: 3 additions & 2 deletions src/db/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,9 +27,10 @@ impl r2d2::ManageConnection for SqliteConnectionManager {
.pragma_update(None, "foreign_keys", "ON")
.unwrap();

// increase the in-memory cache from 2MB to 50MB
// the goal of this is to try to keep `experiment_crates` mostly cached in memory.
// that makes it much faster to scan it for the next crate we want to serve.
connection
.pragma_update(None, "cache_size", "-51200")
.pragma_update(None, "cache_size", "-307200")
.unwrap();

// per docs, this is recommended for relatively long-lived connections (like what we have
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