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db tuning

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Ben
2023-09-30 14:54:42 -04:00
parent 0a03969f16
commit f6f65ab9dc
2 changed files with 11 additions and 3 deletions
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src/services/app.service.ts
+4 -1
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@@ -17,11 +17,14 @@ export class AppService implements OnModuleInit {
}
async onModuleInit() {
if (process.env.NODE_APP_INSTANCE == '0') {
await this.dataSource.query(`VACUUM;`);
}
//https://phiresky.github.io/blog/2020/sqlite-performance-tuning/
//500 MB DB cache
await this.dataSource.query(`PRAGMA cache_size = -500000;`);
//Normal is still completely corruption safe in WAL mode, and means only WAL checkpoints have to wait for FSYNC.
await this.dataSource.query(`PRAGMA synchronous = normal;`);
await this.dataSource.query(`PRAGMA synchronous = off;`);
//3Gb
await this.dataSource.query(`PRAGMA mmap_size = 3000000000;`);
}