[aggregator] Checking if metadata is set to default should not cause … #3198
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@@ Coverage Diff @@
## master #3198 +/- ##
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- Coverage 72.3% 72.3% -0.1%
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Files 1087 1087
Lines 100792 100797 +5
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- Hits 72886 72882 -4
- Misses 22845 22848 +3
- Partials 5061 5067 +6
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mway
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Feb 9, 2021
soundvibe
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Feb 10, 2021
* master: (30 commits) [dbnode] Use go context to cancel index query workers after timeout (#3194) [aggregator] Fix change ActivePlacement semantics on close (#3201) [aggregator] Simplify (Active)StagedPlacement API (#3199) [aggregator] Checking if metadata is set to default should not cause copying (#3198) [dbnode] Remove readers and writer from aggregator API (#3122) [aggregator] Avoid large copies in entry rollup comparisons by making them more inline-friendly (#3195) [dbnode] Re-add aggregator doc limit update (#3137) [m3db] Do not close reader in filterFieldsIterator.Close() (#3196) Revert "Remove disk series read limit (#3174)" (#3193) [instrument] Improve sampled timer and stopwatch performance (#3191) Omit unset fields in metadata json (#3189) [dbnode] Remove left-over code in storage/bootstrap/bootstrapper (#3190) [dbnode][coordinator] Support match[] in label endpoints (#3180) Instrument the worker pool with the wait time (#3188) Instrument query path (#3182) [aggregator] Remove indirection, large copy from unaggregated protobuf decoder (#3186) [aggregator] Sample timers completely (#3184) [aggregator] Reduce error handling overhead in rawtcp server (#3183) [aggregator] Move shardID calculation out of critical section (#3179) Move instrumentation cleanup to FetchTaggedResultIterator Close() (#3173) ...
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…copying
What this PR does / why we need it:
The microbenchmarks don't tell the entire story, as it's much harder the copying in real code. Metadata checks are actually contributing to overall copying and wasting cache bandwidth.
Again, all because compiler doesn't like inlining the rather deep call stacks.
Special notes for your reviewer:
Does this PR introduce a user-facing and/or backwards incompatible change?:
Does this PR require updating code package or user-facing documentation?: