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Improve Conduit performance of special edge-based custom Revision fields
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Authored by epriestley on Jul 31 2016, 4:06 PM.
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Details

Summary

Ref T11404. Depends on D16351. Currently, both differential.query and differential.revision.search issue 2N queries to fetch:

  • dependencies for each revision; and
  • projects for each revision.

Fix this:

  • Take these custom fields out of Conduit so they don't load this data by default.
  • For differential.query, put this data back in by hard coding it.
  • For differential.revision.search, just leave it out. You can already optionally get projects efficiently, and this endpoint is a work in progress. I would tentatively be inclined to expose graph data as a "graph" extension once we need it.

This makes both methods execute in O(1) time (which is still 20-30 queries, but at least it's not 320 queries anymore).

Test Plan
  • Ran differential.query, observed no change in results but 199 fewer internal queries.
  • Ran differential.revision.search, observed data gone from results and 200 fewer internal queries.

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Event Timeline

epriestley retitled this revision from to Improve Conduit performance of special edge-based custom Revision fields.
epriestley updated this object.
epriestley edited the test plan for this revision. (Show Details)
epriestley added reviewers: chad, yelirekim.
chad edited edge metadata.
This revision is now accepted and ready to land.Jul 31 2016, 4:35 PM
This revision was automatically updated to reflect the committed changes.