[epic] Make caching real good · spinel-coop/rv#414

(0 评论) (2 反应) (0 负责人)Rust (1,706 star) (46 fork)user submission

good first issue

描述

We have several significant opportunities to improve the ways rv caches things to make the things we do often really fast:

set up the cacache crate for the other parts of rv to use
unpack ruby and gem tarballs into our cacache, so we only store each file once even if it is in multiple versions of a gem
install gems by copy-on-write hardlinking the files in that gem from cacache into the install directory, instead of unpacking tarballs
after compiling native extensions, copy the results into cacache. on future installs simply hardlink those files as well, so any particular machine will never compile a gem more than once
put git gem clones into the global cache, so you never have to do a full checkout of a git repo (eg rails) a second time

技术栈: rust
领域: performancetooling
议题类型: performance
难度: 5
预计时间: over 1 week
活动状态: fresh
清晰度: needs investigation
前置要求: Rustfamiliarity with rv codebasecaching concepts
新手友好度: 10
研究方向: This issue is an epic with multiple sub tasks to improve caching in rv. It references using the `cacache` crate and implementing hardlinks. The scope is large and not well defined for a single contributor. To begin, one should study the existing caching mechanisms in rv and investigate how `cacache` is currently integrated. The maintainers may need to break this into smaller actionable issues. No linked PRs or comments provide further guidance.