perf(tracer): reduce overhead of attribute sanitization #4558
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Samuron
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| if (typeof attributes !== 'object' || attributes == null) { | ||
| return out; | ||
| } | ||
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| for (const [key, val] of Object.entries(attributes)) { | ||
| for (const key in attributes) { |
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There are some environments (runtimes) where the usage of x in y can cause issues where the only additional fix is to also use Object.hasOwnProperty so this may have unexpected (endless looping) consequences.
It's been a while since I saw this previously, but (from memory) it is caused by a 3rd party library adding stuff to Object to support the runtime environment.
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I propose to add Object.hasOwnProperty then, I think allocations is more of a problem than sheer performance
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Added propertyIsEnumerable check
Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## main #4558 +/- ##
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Coverage 92.83% 92.84%
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Files 328 328
Lines 9486 9498 +12
Branches 2035 2043 +8
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+ Hits 8806 8818 +12
Misses 680 680
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Which problem is this PR solving?
OTEL is producing too much allocations
Fixes # (issue)
Short description of the changes
Added possibility for sanitizeAttributes to operate in place on provided object. Remove Object.entries and do prevent copying already allocated copies of arrays
Type of change
Please delete options that are not relevant.
How Has This Been Tested?
After:
create spans (10 attributes) x 702,092 ops/sec ±1.32% (88 runs sampled)
create spans (10 attributes) passed as options x 603,744 ops/sec ±0.57% (97 runs sampled)
BatchSpanProcessor process span x 652,096 ops/sec ±0.97% (93 runs sampled)
Before:
create spans (10 attributes) x 691,170 ops/sec ±1.13% (94 runs sampled)
create spans (10 attributes) passed as options x 291,230 ops/sec ±0.54% (99 runs sampled)
BatchSpanProcessor process span x 645,159 ops/sec ±0.97% (95 runs sampled)
Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration
Checklist: