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remove clones from the header plugin #3721

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merged 3 commits into from
Sep 4, 2023

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Geal
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@Geal Geal commented Sep 1, 2023

Fix #3068

the operations were cloned for every subgraph query, this is a bit wasteful so we create them only once, and store them under an Arc

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Complete the checklist (and note appropriate exceptions) before a final PR is raised.

  • Changes are compatible[^1]
  • Documentation[^2] completed
  • Performance impact assessed and acceptable
  • Tests added and passing[^3]
    • Unit Tests
    • Integration Tests
    • Manual Tests

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[^1]. It may be appropriate to bring upcoming changes to the attention of other (impacted) groups. Please endeavour to do this before seeking PR approval. The mechanism for doing this will vary considerably, so use your judgement as to how and when to do this.
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the operations are cloned for every subgraph query, this is a bit
wasteful so we create them only once, and store them under an Arc
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@Geal Geal requested review from a team, garypen, bnjjj and o0Ignition0o September 1, 2023 14:34
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router-perf bot commented Sep 1, 2023

CI performance tests

  • step - Basic stress test that steps up the number of users over time
  • events_without_dedup - Stress test for events with a lot of users and deduplication DISABLED
  • xlarge-request - Stress test with 10 MB request payload
  • xxlarge-request - Stress test with 100 MB request payload
  • events_big_cap_high_rate - Stress test for events with a lot of users, deduplication enabled and high rate event with a big queue capacity
  • const - Basic stress test that runs with a constant number of users
  • reload - Reload test over a long period of time at a constant rate of users
  • large-request - Stress test with a 1 MB request payload
  • events - Stress test for events with a lot of users and deduplication ENABLED
  • step-jemalloc-tuning - Clone of the basic stress test for jemalloc tuning
  • no-graphos - Basic stress test, no GraphOS.

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Geal commented Sep 1, 2023

quick benchmarks show that those clones could add a 15% overhead

@Geal Geal enabled auto-merge (squash) September 4, 2023 14:10
@Geal Geal merged commit 307e0eb into dev Sep 4, 2023
@Geal Geal deleted the geal/remove-clones-from-headers-plugin branch September 4, 2023 14:29
garypen pushed a commit that referenced this pull request Sep 12, 2023
Fix #3068 

the operations were cloned for every subgraph query, this is a bit
wasteful so we create them only once, and store them under an Arc
@abernix abernix mentioned this pull request Sep 14, 2023
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Why is header propagation in Rhai faster than via the config?
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