Research: demonstrate if parallel SQL queries are worthwhile · simonw/datasette#1727

(32 评论) (0 反应) (0 负责人)Python (8,637 star) (625 fork)batch import

help wantedresearch

描述

I added parallel SQL query execution here:

My hunch is that this will take advantage of multiple cores, since Python's sqlite3 module releases the GIL once a query is passed to SQLite.

I'd really like to prove this is the case though. Just not sure how to do it!

Larger question: is this performance optimization actually improving performance at all? Under what circumstances is it worthwhile?

技术栈: pythonsqlite
领域: backenddatabaseperformance
议题类型: research
难度: 3
预计时间: half day
活动状态: active
清晰度: mostly clear
前置要求: Python basicsSQLite conceptsPerformance benchmarking
新手友好度: 40
研究方向: Review the existing parallel query implementation in issue #1723. Design a benchmark that runs a set of SQL queries sequentially and in parallel, measuring total execution time and CPU utilization using Python's time and resource modules. Compare results on multi core machines and document findings in a comment.