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refactor(turborepo): Improve package changes watcher performance #8064

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merged 5 commits into from
May 7, 2024

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NicholasLYang
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@NicholasLYang NicholasLYang commented Apr 30, 2024

Description

Like #8036, we need to split out the event processing loop from the actual logic to avoid lagging channels. In this case we process the changed files every 100ms.

Uses a Trie to store the paths since they'll likely have a lot of overlap.

Testing Instructions

Closes TURBO-2921

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let changed_packages = change_mapper.changed_packages(changed_files.clone(), None);

tracing::warn!("changed_files: {:?}", changed_files);
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warn is probably not the right level semantically, but debug has so much stuff in it and we don't log it out by default

changed_pkgs
);
}
interval.tick().await;
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100ms should be enough time that we don't need to park/notify, right?

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Yeah, I think that should be ok. We can ITG once the feature is stable.

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A few questions, but other than that ship it

changed_pkgs
);
}
interval.tick().await;
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Yeah, I think that should be ok. We can ITG once the feature is stable.

crates/turborepo-lib/src/package_changes_watcher.rs Outdated Show resolved Hide resolved
let changed_files: HashSet<_> = trie
.keys()
.filter_map(|p| {
let p = AbsoluteSystemPathBuf::try_from(p.as_path()).ok()?;
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Should this be .expect("filewatching returns absolute paths")?

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Do we want to crash the daemon on this? That seems a little drastic

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I think so. These paths are coming from filewatching, right? If that system isn't giving us what we expect, it's a programming error on our part and lots of things will be broken. I think in that scenario, crashing is the right thing to do.

})
.filter(|p| {
// If in .gitignore or in .git, filter out
!(ancestors_is_ignored(&root_gitignore, p) || is_in_git_folder(p))
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I suspect that at some point this'll be an issue w/ inputs.

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yeah there's a subsequent PR that hooks up file hashing and removes this check

@NicholasLYang NicholasLYang force-pushed the nicholasyang/package-change-watcher-perf branch from d510c4c to c19392a Compare May 7, 2024 17:18
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NicholasLYang commented May 7, 2024

@NicholasLYang NicholasLYang enabled auto-merge (squash) May 7, 2024 17:35
@NicholasLYang NicholasLYang merged commit dd837ad into main May 7, 2024
54 checks passed
@NicholasLYang NicholasLYang deleted the nicholasyang/package-change-watcher-perf branch May 7, 2024 18:10
Neosoulink pushed a commit to Neosoulink/turbo that referenced this pull request Jun 14, 2024
…cel#8064)

### Description

Like vercel#8036, we need to split out the event processing loop from the
actual logic to avoid lagging channels. In this case we process the
changed files every 100ms.

Uses a `Trie` to store the paths since they'll likely have a lot of
overlap.

### Testing Instructions

<!--
  Give a quick description of steps to test your changes.
-->


Closes TURBO-2921
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2 participants