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feat(core): add Node.js memory perf logging #10590
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slorber
added
pr: new feature
This PR adds a new API or behavior.
and removed
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Oct 17, 2024
✅ [V2]
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Motivation
This enhance the
DOCUSAURUS_PERF_LOGGER=true
env variable described in #4765 (comment)Although we consider it an internal API, users can still use this env variable to troubleshoot performance and memory usage of their Docusaurus site.
Note: it's better to run this with the
--expose-gc
Node.js option, so that heap memory consumption gets measured just after triggering a manual GC.Our infrastructure should make it easy to figure out which step consumes Node.js heap memory:
For now, it only logs before/after memory, but we could enhance this later with sampling and add an average memory consumption for each recorded step.
Note I'd also like to wire all this to our CI in the future so that PRs can report memory usage regressions, similar to what Astro is doing here:
Test Plan
local
Links
Related to #4765
Follow-up of #9975